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authorKyle McMartin <kmcmarti@redhat.com>2014-10-21 13:05:11 -0400
committerKyle McMartin <kmcmarti@redhat.com>2014-10-21 13:40:24 -0400
commit88b2d0957639b3cb07acd1744ad515af61d2176d (patch)
tree0eccad336ec1ad281de1403e473feae45c5d5248 /kernel-arm64.patch
parent27d39a95f697200a2f2d38dac457bd6720d2cd61 (diff)
downloadkernel-88b2d0957639b3cb07acd1744ad515af61d2176d.tar.gz
kernel-88b2d0957639b3cb07acd1744ad515af61d2176d.tar.xz
kernel-88b2d0957639b3cb07acd1744ad515af61d2176d.zip
Re-enable kernel-arm64.patch after updating.
- CONFIG_SERIAL_8250_FINTEK moved to generic since it appears on x86-generic and arm64 now. - CONFIG_IMX_THERMAL=n added to config-arm64.
Diffstat (limited to 'kernel-arm64.patch')
-rw-r--r--kernel-arm64.patch9171
1 files changed, 5681 insertions, 3490 deletions
diff --git a/kernel-arm64.patch b/kernel-arm64.patch
index a05aa3383..0a0941da3 100644
--- a/kernel-arm64.patch
+++ b/kernel-arm64.patch
@@ -1,135 +1,62 @@
-commit 87257d3e584fad0b47e6304da54a1932f42b11bb
+commit fb3aa1c1644a73bc36a47a6844c3ee6414787e9e
Author: Mark Salter <msalter@redhat.com>
-Date: Tue Sep 30 17:19:24 2014 -0400
+Date: Sun Oct 19 11:11:08 2014 -0400
- arm64: avoid need for console= to enable serial console
+ clocksource: arm_arch_timer: fix system hang
- Tell kernel to prefer one of the serial ports on platforms
- pl011, 8250, or sbsa uarts. console= on command line will
- override these assumed preferences.
+ Arm allows for two possible architectural clock sources. One memory mapped
+ and the other coprocessor based. If both timers exist, then the driver waits
+ for both to be probed before registering a clocksource.
- Signed-off-by: Mark Salter <msalter@redhat.com>
-
-commit 56db24589d311ea3590527030ede007ec339e2d7
-Author: Tom Lendacky <thomas.lendacky@amd.com>
-Date: Tue Sep 9 23:33:17 2014 -0400
-
- drivers: net: AMD Seattle XGBE PHY support for A0 silicon
+ Commit c387f07e6205 ("clocksource: arm_arch_timer: Discard unavailable timers
+ correctly") attempted to fix a hang occurring when one of the two possible
+ timers had a device node, but was disabled. In that case, the second probe
+ would never occur and the system would hang without a clocksource being
+ registered.
- This patch modifies the upstream AMD XGBE PHY driver to support
- A0 Seattle silicon in currently shipping systems. The upstream
- Linux driver is targetted for Seattle B0 silicon.
+ Unfortunately, incorrect logic in that commit made things worse such that
+ a hang would occur unless both timers had a device node and were enabled.
+ This patch fixes the logic so that we don't wait to probe a second timer
+ unless it exists and is enabled.
Signed-off-by: Mark Salter <msalter@redhat.com>
-commit 75554bb2e3c433a47e172d81a0b59df58810dc01
-Author: Tom Lendacky <thomas.lendacky@amd.com>
-Date: Tue Sep 9 23:34:07 2014 -0400
-
- drivers: net: AMD Seattle XGBE 10GbE support for A0 silicon
-
- This patch modifies the upstream AMD 10GbE XGBE Ethernet driver to
- support A0 Seattle silicon in currently shipping systems. The
- upstream Linux driver is targetted for Seattle B0 silicon.
-
- Signed-off-by: Mark Salter <msalter@redhat.com>
-
-commit 41cb1b3c9e62256b8a4e92c50cd51b2a68d0c9c6
-Author: Graeme Gregory <graeme.gregory@linaro.org>
-Date: Fri Jul 26 17:55:02 2013 +0100
+commit 798bcf9c5057f0acd54154d09abf6fc4fc044e41
+Author: Mark Salter <msalter@redhat.com>
+Date: Tue Oct 14 13:51:54 2014 -0400
- virtio-mmio: add ACPI probing
+ arm64: [NOT FOR UPSTREAM] fix dma_ops for ACPI and PCI devices
- Added the match table and pointers for ACPI probing to the driver.
+ Commit 2189064795dc3fb4101e5:
- Signed-off-by: Graeme Gregory <graeme.gregory@linaro.org>
-
-commit c06502fb4f00c6996c1f55cd342288508808c678
-Author: Graeme Gregory <graeme.gregory@linaro.org>
-Date: Wed Jul 24 11:29:48 2013 +0100
-
- net: smc91x: add ACPI probing support.
-
- Add device ID LINA0003 for this device and add the match table.
+ arm64: Implement set_arch_dma_coherent_ops() to replace bus notifiers
- As its a platform device it needs no other code and will be probed in by
- acpi_platform once device ID is added.
-
- Signed-off-by: Graeme Gregory <graeme.gregory@linaro.org>
-
-commit aad559613ff05a13f940129675659297e7125979
-Author: Mark Salter <msalter@redhat.com>
-Date: Tue Sep 23 12:48:48 2014 -0400
-
- arm64/pci: add coherency inheritance for pci devices
+ removed the bus notifiers from dma-mapping.c. This patch
+ adds the notifier back for ACPI and PCI devices until a
+ better permanent solution is worked out.
Signed-off-by: Mark Salter <msalter@redhat.com>
-commit 8d2a4226d96ccae17fbc0ef7d7d9c5a07ad8b31f
+commit 4b7a879d4fe95e935a06bd5209026a2278251ce6
Author: Mark Salter <msalter@redhat.com>
-Date: Tue Sep 23 12:35:17 2014 -0400
-
- arm64/acpi: make acpi disabled by default
-
- Signed-off-by: Mark Salter <msalter@redhat.com>
-
-commit 0553f2b9fc94bfb0f9038003ad6f150cca196aad
-Author: Wei Huang <wei@redhat.com>
-Date: Thu Sep 18 20:32:03 2014 -0400
+Date: Thu Aug 14 12:32:13 2014 -0400
- KVM: fix VTTBR_BADDR_MASK
-
- The following is patch from AMD to fix VTTBR_BADDR_MASK. According to
- AMD, this patch is required to enable KVM on Seattle.
-
- The current VTTBR_BADDR_MASK only masks 39 bits, which is broken on current
- systems. Rather than just add a bit it seems like a good time to also set
- things at run-time instead of compile time to accomodate more hardware.
-
- This patch sets TCR_EL2.PS, VTCR_EL2.T0SZ and vttbr_baddr_mask in runtime,
- not compile time.
-
- In ARMv8, EL2 physical address size (TCR_EL2.PS) and stage2 input address
- size (VTCR_EL2.T0SZE) cannot be determined in compile time since they
- depend on hardware capability.
-
- According to Table D4-23 and Table D4-25 in ARM DDI 0487A.b document,
- vttbr_x is calculated using different fixed values with consideration
- of T0SZ, granule size and the level of translation tables. Therefore,
- vttbr_baddr_mask should be determined dynamically.
-
- Changes since v5:
- Fixed declaration of vttbr_baddr_mask to not create multiple instances
- Refactored return codes based on feedback
- For 32 bit included kvm_arm.h in kvm_mmu.h to explictly pick up
- VTTBR_BADDR_MASK
-
- Changes since v4:
- More minor cleanups from review
- Moved some functions into headers
- Added runtime check in kvm_alloc_stage2_pgd
-
- Changes since v3:
- Another rebase
- Addressed minor comments from v2
-
- Changes since v2:
- Rebased on https://git.kernel.org/pub/scm/linux/kernel/git/kvmarm/kvmarm.git next branch
+ acpi: add utility to test for device dma coherency
- Changes since v1:
- Rebased fix on Jungseok Lee's patch https://lkml.org/lkml/2014/5/12/189 to
- provide better long term fix. Updated that patch to log error instead of
- silently fail on unaligned vttbr.
+ ACPI 5.1 adds a _CCA object to indicate memory coherency
+ of a bus master device. It is an integer with zero meaning
+ non-coherent and one meaning coherent. This attribute may
+ be inherited from a parent device. It may also be missing
+ entirely, in which case, an architecture-specific default
+ is assumed.
- Cc: Marc Zyngier <marc.zyngier@arm.com>
- Cc: Christoffer Dall <christoffer.dall@linaro.org>
- Cc: Sungjinn Chung <sungjinn.chung@samsung.com>
- Signed-off-by: Jungseok Lee <jays.lee@samsung.com>
- Signed-off-by: Joel Schopp <joel.schopp@amd.com>
+ This patch adds a utility function to parse a device handle
+ (and its parents) for a _CCA object and return the coherency
+ attribute if found.
- Signed-off-by: Wei Huang <wei@redhat.com>
+ Signed-off-by: Mark Salter <msalter@redhat.com>
-commit f53d1278fe445b7130f1ff76b2f453b453368284
+commit 0e83bbc67aa2ced7b0f62bc9cdbf8026f3a83ea7
Author: Wei Huang <wei@redhat.com>
Date: Thu Sep 18 20:02:57 2014 -0400
@@ -146,7 +73,7 @@ Date: Thu Sep 18 20:02:57 2014 -0400
Signed-off-by: Wei Huang <wei@redhat.com>
-commit ba63e452ff5b09cc0314f94e163a51c3279b9ca7
+commit b01e346d3156935d05aada065b69dbd4e8e3c38e
Author: Wei Huang <wei@redhat.com>
Date: Thu Sep 18 20:02:56 2014 -0400
@@ -159,7 +86,7 @@ Date: Thu Sep 18 20:02:56 2014 -0400
Signed-off-by: Wei Huang <wei@redhat.com>
-commit dd3f6094c2142786f40a3bc4d69c60b430ecc675
+commit 1f7fbdb23b3f616344bc6ab42d133528508b4183
Author: Wei Huang <wei@redhat.com>
Date: Thu Sep 18 20:02:55 2014 -0400
@@ -176,143 +103,472 @@ Date: Thu Sep 18 20:02:55 2014 -0400
Signed-off-by: Wei Huang <wei@redhat.com>
-commit cdfc19f1fbe88c1610db790ad55318d55ab00ee9
-Author: Mark Salter <msalter@redhat.com>
-Date: Thu Sep 18 21:13:05 2014 -0400
+commit f1e1479c450a58b7fc68fec33c39b050dcc4b13d
+Author: Al Stone <ahs3@redhat.com>
+Date: Thu Sep 18 15:46:38 2014 -0600
- arm64/pci: fix dma coherency inheritance for PCI devices
+ DO NOT UPSTREAM -- patch to work around bad MAC of 0x0
- The default dma_ops for devices on arm64 systems are noncoherent in
- nature and rely upon special operations and bounce buffers to
- perform a device DMA operation to/from memory. Some drivers rely
- upon coherent operations involving suitably capable hardware. In
- this case, a "dma-coherent" property will exist on the corresponding
- Device Tree node for the bridge device, or one of its ancestors.
- This patch adds support for applying a DMA coherent dma_ops for
- PCI devices in the case of such a property.
+ Signed-off-by: Al Stone <ahs3@redhat.com>
+
+commit b97981d8eaeef88d34b68d6bf6fae3088fce76f6
+Author: Tom Lendacky <thomas.lendacky@amd.com>
+Date: Mon Sep 15 17:02:52 2014 -0600
+
+ amd-xgbe: AMD 10GbE driver APCI support for A0
- Signed-off-by: Mark Salter <msalter@redhat.com>
+ This patch provides ACPI support for the AMD 10GbE device driver
+ and AMD 10GbE phy driver.
+
+ Signed-off-by: Tom Lendacky <thomas.lendacky@amd.com>
-commit c8a62324eba5718fb43a94a168de7a81787aa94d
+commit dd2c9edb72ff2e36152bae3bdf4f849b155c6178
Author: Mark Salter <msalter@redhat.com>
-Date: Thu Sep 18 15:05:23 2014 -0400
+Date: Tue Oct 7 12:54:08 2014 -0400
- arm64: add sev to parking protocol
+ xgene acpi network - first cut
+
+commit 34f6f9c9a449fce5038a79ef74d85c0cd8aa983d
+Author: Mika Westerberg <mika.westerberg@linux.intel.com>
+Date: Wed Oct 1 04:22:27 2014 +0200
+
+ misc: at25: Add ACPI probing support
- Parking protocol wakes secondary cores with an interrupt.
- This patch adds an additional sev() to send an event. This
- is a temporary hack for APM Mustang board and not intended
- for upstream.
+ Add support for matching using DT compatible string from ACPI _DSD.
- Signed-off-by: Mark Salter <msalter@redhat.com>
+ Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com>
+ Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
-commit e5f4ba1223515c46f1875597e77d5c32a37829ee
-Author: Mark Salter <msalter@redhat.com>
-Date: Sun Sep 14 09:44:44 2014 -0400
+commit a17b2b5016d76e752f706b5f6b04ffae8ec1728e
+Author: Mika Westerberg <mika.westerberg@linux.intel.com>
+Date: Wed Oct 1 04:21:18 2014 +0200
- Revert "ahci_xgene: Skip the PHY and clock initialization if already configured by the firmware."
+ misc: at25: Make use of device property API
- This reverts commit 0bed13bebd6c99d097796d2ca6c4f10fb5b2eabc.
+ Make use of device property API in this driver so that both DT and ACPI
+ based systems can use this driver.
- Temporarily revert for backwards compatibility with rh-0.12-1 firmware
+ Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com>
+ Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
-commit aeff595a5d57264e5f01add5c43f584d88be6a92
-Author: Mark Salter <msalter@redhat.com>
-Date: Mon Aug 11 13:46:43 2014 -0400
+commit 66442ae93d72f35bf046a6001403fdb89fbcfbdf
+Author: Mika Westerberg <mika.westerberg@linux.intel.com>
+Date: Wed Oct 1 04:20:43 2014 +0200
- xgene: add support for ACPI-probed serial port
+ input: gpio_keys_polled - Add ACPI probing support
+
+ Allow the driver to probe from ACPI namespace.
+
+ Signed-off-by: Aaron Lu <aaron.lu@intel.com>
+ Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com>
+ Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
+
+commit 7f06c354929e2325f200de26e47189a13100647e
+Author: Aaron Lu <aaron.lu@intel.com>
+Date: Wed Oct 1 04:20:05 2014 +0200
+
+ input: gpio_keys_polled - Make use of device property API
+
+ Make use of device property API in this driver so that both OF based
+ system and ACPI based system can use this driver.
+
+ Signed-off-by: Aaron Lu <aaron.lu@intel.com>
+ Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com>
+ Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
+
+commit 1fb6d8d9606826cf1dfdac8a75bc5e3f68e4d0de
+Author: Aaron Lu <aaron.lu@intel.com>
+Date: Wed Oct 1 04:17:46 2014 +0200
+
+ input: gpio_keys_polled - Add support for GPIO descriptors
+
+ GPIO descriptors are the preferred way over legacy GPIO numbers
+ nowadays. Convert the driver to use GPIO descriptors internally but
+ still allow passing legacy GPIO numbers from platform data to support
+ existing platforms.
+
+ Signed-off-by: Aaron Lu <aaron.lu@intel.com>
+ Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com>
+ Acked-by: Alexandre Courbot <acourbot@nvidia.com>
+ Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
+ Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
+
+commit 8cd8efd79a3f822db3ffc2f30f7646584b69d99f
+Author: Max Eliaser <max@meliaserlow.dyndns.tv>
+Date: Wed Oct 1 04:17:02 2014 +0200
+
+ leds: leds-gpio: Add ACPI probing support
+
+ This allows the driver to probe from ACPI namespace.
+
+ Signed-off-by: Max Eliaser <max.eliaser@intel.com>
+ Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com>
+ Acked-by: Bryan Wu <cooloney@gmail.com>
+ Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
+
+commit 14144259abecb65edd35b9d5e717688800628e27
+Author: Max Eliaser <max@meliaserlow.dyndns.tv>
+Date: Wed Oct 1 04:16:25 2014 +0200
+
+ leds: leds-gpio: Make use of device property API
+
+ Make use of device property API in this driver so that both OF and ACPI
+ based system can use the same driver.
+
+ Signed-off-by: Max Eliaser <max.eliaser@intel.com>
+ Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com>
+ Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
+
+commit 998f66211496063e464918fcdb4e40e99fcf2501
+Author: Mika Westerberg <mika.westerberg@linux.intel.com>
+Date: Wed Oct 1 04:15:41 2014 +0200
+
+ leds: leds-gpio: Add support for GPIO descriptors
+
+ GPIO descriptors are the preferred way over legacy GPIO numbers
+ nowadays. Convert the driver to use GPIO descriptors internally but
+ still allow passing legacy GPIO numbers from platform data to support
+ existing platforms.
+
+ Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com>
+ Acked-by: Alexandre Courbot <acourbot@nvidia.com>
+ Acked-by: Bryan Wu <cooloney@gmail.com>
+ Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
+
+commit ecf8d19a6019f60c567615c46bec6f4501c03c99
+Author: Mika Westerberg <mika.westerberg@linux.intel.com>
+Date: Wed Oct 1 04:15:01 2014 +0200
+
+ gpio: sch: Consolidate core and resume banks
+
+ This is actually a single device with two sets of identical registers,
+ which just happen to start from a different offset. Instead of having
+ separate GPIO chips created we consolidate them to be single GPIO chip.
+
+ In addition having a single GPIO chip allows us to handle ACPI GPIO
+ translation in the core in a more generic way, since the two GPIO chips
+ share the same parent ACPI device.
+
+ Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com>
+ Acked-by: Linus Walleij <linus.walleij@linaro.org>
+ Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
+
+commit f87218916f4a9bcd2acdf8db1a4dbf8db5592036
+Author: Mika Westerberg <mika.westerberg@linux.intel.com>
+Date: Wed Oct 1 04:14:20 2014 +0200
-commit 02429d239f5ae917d870a7611a9d838b7822df1a
+ gpio: Support for unified device properties interface
+
+ Some drivers need to deal with only firmware representation of its
+ GPIOs. An example would be a GPIO button array driver where each button
+ is described as a separate firmware node in device tree. Typically these
+ child nodes do not have physical representation in the Linux device
+ model.
+
+ In order to help device drivers to handle such firmware child nodes we
+ add dev[m]_get_named_gpiod_from_child() that takes a child firmware
+ node pointer as its second argument (the first one is the parent device
+ itself), finds the GPIO using whatever is the underlying firmware
+ method, and requests the GPIO properly.
+
+ Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com>
+ Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
+
+commit 2edae8da3e10c8b9d679637693e9d26a0cb9440f
+Author: Mika Westerberg <mika.westerberg@linux.intel.com>
+Date: Wed Oct 1 04:12:41 2014 +0200
+
+ gpio / ACPI: Add support for _DSD device properties
+
+ With release of ACPI 5.1 and _DSD method we can finally name GPIOs (and
+ other things as well) returned by _CRS. Previously we were only able to
+ use integer index to find the corresponding GPIO, which is pretty error
+ prone if the order changes.
+
+ With _DSD we can now query GPIOs using name instead of an integer index,
+ like the below example shows:
+
+ // Bluetooth device with reset and shutdown GPIOs
+ Device (BTH)
+ {
+ Name (_HID, ...)
+
+ Name (_CRS, ResourceTemplate ()
+ {
+ GpioIo (Exclusive, PullUp, 0, 0, IoRestrictionInputOnly,
+ "\\_SB.GPO0", 0, ResourceConsumer) {15}
+ GpioIo (Exclusive, PullUp, 0, 0, IoRestrictionInputOnly,
+ "\\_SB.GPO0", 0, ResourceConsumer) {27, 31}
+ })
+
+ Name (_DSD, Package ()
+ {
+ ToUUID("daffd814-6eba-4d8c-8a91-bc9bbf4aa301"),
+ Package ()
+ {
+ Package () {"reset-gpio", Package() {^BTH, 1, 1, 0 }},
+ Package () {"shutdown-gpio", Package() {^BTH, 0, 0, 0 }},
+ }
+ })
+ }
+
+ The format of the supported GPIO property is:
+
+ Package () { "name", Package () { ref, index, pin, active_low }}
+
+ ref - The device that has _CRS containing GpioIo()/GpioInt() resources,
+ typically this is the device itself (BTH in our case).
+ index - Index of the GpioIo()/GpioInt() resource in _CRS starting from zero.
+ pin - Pin in the GpioIo()/GpioInt() resource. Typically this is zero.
+ active_low - If 1 the GPIO is marked as active_low.
+
+ Since ACPI GpioIo() resource does not have field saying whether it is
+ active low or high, the "active_low" argument can be used here. Setting
+ it to 1 marks the GPIO as active low.
+
+ In our Bluetooth example the "reset-gpio" refers to the second GpioIo()
+ resource, second pin in that resource with the GPIO number of 31.
+
+ This patch implements necessary support to gpiolib for extracting GPIOs
+ using _DSD device properties.
+
+ Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com>
+ Acked-by: Linus Walleij <linus.walleij@linaro.org>
+ Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
+
+commit 01164a93badc2df11a1f1bfdf7d46e3253a0a6ec
+Author: Mika Westerberg <mika.westerberg@linux.intel.com>
+Date: Wed Oct 1 04:11:20 2014 +0200
+
+ ACPI: Document ACPI device specific properties
+
+ This document describes the data format and interfaces of ACPI device
+ specific properties.
+
+ Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com>
+ Signed-off-by: Darren Hart <dvhart@linux.intel.com>
+ Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
+
+commit 1ea48df9784142befa0cdb6cb79f7fd405a7a103
+Author: Mika Westerberg <mika.westerberg@linux.intel.com>
+Date: Wed Oct 1 04:10:40 2014 +0200
+
+ ACPI: Allow drivers to match using Device Tree compatible property
+
+ We have lots of existing Device Tree enabled drivers and allocating
+ separate _HID for each is not feasible. Instead we allocate special _HID
+ "PRP0001" that means that the match should be done using Device Tree
+ compatible property using driver's .of_match_table instead.
+
+ If there is a need to distinguish from where the device is enumerated
+ (DT/ACPI) driver can check dev->of_node or ACPI_COMPATION(dev).
+
+ Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com>
+ Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
+
+commit f15380516841e837f8e20ed18c0039e052bb6187
+Author: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
+Date: Wed Oct 1 04:10:03 2014 +0200
+
+ Driver core: Unified device properties interface for platform firmware
+
+ Add a uniform interface by which device drivers can request device
+ properties from the platform firmware by providing a property name
+ and the corresponding data type. The purpose of it is to help to
+ write portable code that won't depend on any particular platform
+ firmware interface.
+
+ Three general helper functions, device_get_property(),
+ device_read_property() and device_read_property_array() are provided.
+ The first one allows the raw value of a given device property to be
+ accessed. The remaining two allow the value of a numeric or string
+ property and multiple numeric or string values of one array
+ property to be acquired, respectively. Static inline wrappers are also
+ provided for the various property data types that can be passed to
+ device_read_property() or device_read_property_array() for extra type
+ checking.
+
+ In addition to that, new generic routines are provided for retrieving
+ properties from device description objects in the platform firmware
+ in case a device driver needs/wants to access properties of a child
+ object of a given device object. There are cases in which there is
+ no struct device representation of such child objects and this
+ additional API is useful then. Again, three functions are provided,
+ device_get_child_property(), device_read_child_property(),
+ device_read_child_property_array(), in analogy with device_get_property(),
+ device_read_property() and device_read_property_array() described above,
+ respectively, along with static inline wrappers for all of the propery
+ data types that can be used. For all of them, the first argument is
+ a struct device pointer to the parent device object and the second
+ argument is a (void *) pointer to the child description provided by
+ the platform firmware (either ACPI or FDT).
+
+ Finally, device_for_each_child_node() is added for iterating over
+ the children of the device description object associated with a
+ given device.
+
+ The interface covers both ACPI and Device Trees.
+
+ This change set includes material from Mika Westerberg and Aaron Lu.
+
+ Signed-off-by: Aaron Lu <aaron.lu@intel.com>
+ Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com>
+ Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
+
+commit 6b0beaa05b29a299e62293fa4ea4dad0053f31b1
+Author: Mika Westerberg <mika.westerberg@linux.intel.com>
+Date: Wed Oct 1 04:08:56 2014 +0200
+
+ ACPI: Add support for device specific properties
+
+ Device Tree is used in many embedded systems to describe the system
+ configuration to the OS. It supports attaching properties or name-value
+ pairs to the devices it describe. With these properties one can pass
+ additional information to the drivers that would not be available
+ otherwise.
+
+ ACPI is another configuration mechanism (among other things) typically
+ seen, but not limited to, x86 machines. ACPI allows passing arbitrary
+ data from methods but there has not been mechanism equivalent to Device
+ Tree until the introduction of _DSD in the recent publication of the
+ ACPI 5.1 specification.
+
+ In order to facilitate ACPI usage in systems where Device Tree is
+ typically used, it would be beneficial to standardize a way to retrieve
+ Device Tree style properties from ACPI devices, which is what we do in
+ this patch.
+
+ If a given device described in ACPI namespace wants to export properties it
+ must implement _DSD method (Device Specific Data, introduced with ACPI 5.1)
+ that returns the properties in a package of packages. For example:
+
+ Name (_DSD, Package () {
+ ToUUID("daffd814-6eba-4d8c-8a91-bc9bbf4aa301"),
+ Package () {
+ Package () {"name1", <VALUE1>},
+ Package () {"name2", <VALUE2>},
+ ...
+ }
+ })
+
+ The UUID reserved for properties is daffd814-6eba-4d8c-8a91-bc9bbf4aa301
+ and is documented in the ACPI 5.1 companion document called "_DSD
+ Implementation Guide" [1], [2].
+
+ We add several helper functions that can be used to extract these
+ properties and convert them to different Linux data types.
+
+ The ultimate goal is that we only have one device property API that
+ retrieves the requested properties from Device Tree or from ACPI
+ transparent to the caller.
+
+ [1] http://www.uefi.org/sites/default/files/resources/_DSD-implementation-guide-toplevel.htm
+ [2] http://www.uefi.org/sites/default/files/resources/_DSD-device-properties-UUID.pdf
+
+ Reviewed-by: Hanjun Guo <hanjun.guo@linaro.org>
+ Reviewed-by: Josh Triplett <josh@joshtriplett.org>
+ Signed-off-by: Darren Hart <dvhart@linux.intel.com>
+ Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
+ Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com>
+ Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
+
+commit ca68950ecf22403e9d0cacdcd86fb4c245de6b9f
Author: Mark Salter <msalter@redhat.com>
-Date: Sat Aug 9 12:01:20 2014 -0400
+Date: Tue Sep 30 17:19:24 2014 -0400
- sata/xgene: support acpi probing
+ arm64: avoid need for console= to enable serial console
+
+ Tell kernel to prefer one of the serial ports on platforms
+ pl011, 8250, or sbsa uarts. console= on command line will
+ override these assumed preferences.
Signed-off-by: Mark Salter <msalter@redhat.com>
-commit 774385f250ebb7448ca3eeb344a064ac989c4988
-Author: Hanjun Guo <hanjun.guo@linaro.org>
-Date: Thu Aug 28 14:26:16 2014 -0400
+commit 6194557254f1ed05638237a64f45f2ec08aa2523
+Author: Tom Lendacky <thomas.lendacky@amd.com>
+Date: Tue Sep 9 23:33:17 2014 -0400
- ARM64 / ACPI: Introduce some PCI functions when PCI is enabled
+ drivers: net: AMD Seattle XGBE PHY support for A0 silicon
- Introduce some PCI functions to make ACPI can be compiled when
- CONFIG_PCI is enabled, these functions should be revisited when
- implemented on ARM64.
+ This patch modifies the upstream AMD XGBE PHY driver to support
+ A0 Seattle silicon in currently shipping systems. The upstream
+ Linux driver is targetted for Seattle B0 silicon.
- Signed-off-by: Hanjun Guo <hanjun.guo@linaro.org>
- [fixed up for 3.17-rc]
Signed-off-by: Mark Salter <msalter@redhat.com>
-commit 6f711c98b37f1b0a42c4a523d0380d47ed2f95b9
-Author: Al Stone <ahs3@redhat.com>
-Date: Thu Aug 28 13:14:16 2014 -0400
+commit 0c9b242dd24b3ddf2e87209cb07c4bc7f5da21c4
+Author: Tom Lendacky <thomas.lendacky@amd.com>
+Date: Tue Sep 9 23:34:07 2014 -0400
- Fix arm64 compilation error in PNP code
+ drivers: net: AMD Seattle XGBE 10GbE support for A0 silicon
+
+ This patch modifies the upstream AMD 10GbE XGBE Ethernet driver to
+ support A0 Seattle silicon in currently shipping systems. The
+ upstream Linux driver is targetted for Seattle B0 silicon.
Signed-off-by: Mark Salter <msalter@redhat.com>
-commit f874873b7cb10f827bb7f8e08fa282878f740e77
-Author: Bob Moore <robert.moore@intel.com>
-Date: Tue Sep 2 08:27:40 2014 +0800
+commit 7697f77962035de040c847f4c331eb91dc1c7c91
+Author: Graeme Gregory <graeme.gregory@linaro.org>
+Date: Fri Jul 26 17:55:02 2013 +0100
- ACPICA: Update version to 20140828.
+ virtio-mmio: add ACPI probing
- Version 20140828.
+ Added the match table and pointers for ACPI probing to the driver.
- Signed-off-by: Bob Moore <robert.moore@intel.com>
- Signed-off-by: Lv Zheng <lv.zheng@intel.com>
+ Signed-off-by: Graeme Gregory <graeme.gregory@linaro.org>
-commit 26f9b7b90576cf808a50edf1ec86ceece9349c9f
-Author: Bob Moore <robert.moore@intel.com>
-Date: Tue Sep 2 08:27:27 2014 +0800
+commit 3025ec9f5711f2773be702464bf3150aa914bd66
+Author: Graeme Gregory <graeme.gregory@linaro.org>
+Date: Wed Jul 24 11:29:48 2013 +0100
- ACPICA: Disassembler: Fix for gpio_int interrupt polarity flags.
+ net: smc91x: add ACPI probing support.
- The field is actually 2 bits, not 1.
+ Add device ID LINA0003 for this device and add the match table.
+
+ As its a platform device it needs no other code and will be probed in by
+ acpi_platform once device ID is added.
- Signed-off-by: Bob Moore <robert.moore@intel.com>
- Signed-off-by: Lv Zheng <lv.zheng@intel.com>
+ Signed-off-by: Graeme Gregory <graeme.gregory@linaro.org>
-commit 6e1eddc48f6f9b948be4126dd38841f6f70da080
-Author: Hanjun Guo <hanjun.guo@linaro.org>
-Date: Tue Sep 2 08:27:19 2014 +0800
+commit a41a9bd6569e079f0572d4b106ffa95d2c16ad06
+Author: Mark Salter <msalter@redhat.com>
+Date: Thu Sep 18 15:05:23 2014 -0400
- ACPICA: Headers: Add GTDT flag definitions for the timer subtable.
+ arm64: add sev to parking protocol
- Mostly by Hanjun Guo <hanjun.guo@linaro.org>
+ Parking protocol wakes secondary cores with an interrupt.
+ This patch adds an additional sev() to send an event. This
+ is a temporary hack for APM Mustang board and not intended
+ for upstream.
- Signed-off-by: Hanjun Guo <hanjun.guo@linaro.org>
- Signed-off-by: Bob Moore <robert.moore@intel.com>
- Signed-off-by: Lv Zheng <lv.zheng@intel.com>
+ Signed-off-by: Mark Salter <msalter@redhat.com>
-commit 1091460efb5542ba87f40ef20daff44215587f26
-Author: Hanjun Guo <hanjun.guo@linaro.org>
-Date: Tue Sep 2 08:27:12 2014 +0800
+commit 6e86c887dd05557830a38aa8fd93fab03a409b69
+Author: Mark Salter <msalter@redhat.com>
+Date: Sun Sep 14 09:44:44 2014 -0400
- ACPICA: ACPI 5.1/Disassembler: Add GICC affinity subtable to SRAT table.
-
- Update template for SRAT.
- Add clock_domain to standard CPU affinity subtable.
+ Revert "ahci_xgene: Skip the PHY and clock initialization if already configured by the firmware."
- Mostly by Hanjun Guo <hanjun.guo@linaro.org>
+ This reverts commit 0bed13bebd6c99d097796d2ca6c4f10fb5b2eabc.
- Signed-off-by: Hanjun Guo <hanjun.guo@linaro.org>
- Signed-off-by: Bob Moore <robert.moore@intel.com>
- Signed-off-by: Lv Zheng <lv.zheng@intel.com>
+ Temporarily revert for backwards compatibility with rh-0.12-1 firmware
-commit 02ba5e067dbb83b0f481db821d05851e9623c401
-Author: Bob Moore <robert.moore@intel.com>
-Date: Tue Sep 2 08:27:05 2014 +0800
+commit 81bcad4ccaf54357a6e3d51a135e07a67ce122ee
+Author: Mark Salter <msalter@redhat.com>
+Date: Mon Aug 11 13:46:43 2014 -0400
- ACPICA: Add _PSx names to the METHOD_NAME list.
-
- Will be used by iASL.
+ xgene: add support for ACPI-probed serial port
+
+commit d99f65d46bcc6a28262ff18506b0f2abd10d789e
+Author: Mark Salter <msalter@redhat.com>
+Date: Sat Aug 9 12:01:20 2014 -0400
+
+ sata/xgene: support acpi probing
- Signed-off-by: Bob Moore <robert.moore@intel.com>
- Signed-off-by: Lv Zheng <lv.zheng@intel.com>
+ Signed-off-by: Mark Salter <msalter@redhat.com>
-commit f2ecef6608a1f74b236df4f93da9b7b5aba4d3fd
+commit 977b4da81b8b80d02f54f2fc799fb292b22ade12
Author: Mark Salter <msalter@redhat.com>
Date: Tue Sep 9 22:59:48 2014 -0400
@@ -328,7 +584,37 @@ Date: Tue Sep 9 22:59:48 2014 -0400
Signed-off-by: Mark Salter <msalter@redhat.com>
-commit 63e220c94f072f10bfae2e1ed375af9dbc017571
+commit b0be9a425fd397fbed0b720a310e82d5d422f0da
+Author: Mark Salter <msalter@redhat.com>
+Date: Tue Sep 23 12:35:17 2014 -0400
+
+ arm64/acpi: make acpi disabled by default
+
+ Signed-off-by: Mark Salter <msalter@redhat.com>
+
+commit 2dd589faf326c07b981093f73a9c7448ddf4afbf
+Author: Hanjun Guo <hanjun.guo@linaro.org>
+Date: Thu Aug 28 14:26:16 2014 -0400
+
+ ARM64 / ACPI: Introduce some PCI functions when PCI is enabled
+
+ Introduce some PCI functions to make ACPI can be compiled when
+ CONFIG_PCI is enabled, these functions should be revisited when
+ implemented on ARM64.
+
+ Signed-off-by: Hanjun Guo <hanjun.guo@linaro.org>
+ [fixed up for 3.17-rc]
+ Signed-off-by: Mark Salter <msalter@redhat.com>
+
+commit 1857c8d68b23fb57f6f6c64d09e3ce183244d399
+Author: Al Stone <ahs3@redhat.com>
+Date: Thu Aug 28 13:14:16 2014 -0400
+
+ Fix arm64 compilation error in PNP code
+
+ Signed-off-by: Mark Salter <msalter@redhat.com>
+
+commit 4529b4dbbaa8732c742300f3abe8db83e08670e8
Author: Suravee Suthikulpanit <Suravee.Suthikulpanit@amd.com>
Date: Tue Sep 9 15:37:15 2014 -0500
@@ -354,7 +640,7 @@ Date: Tue Sep 9 15:37:15 2014 -0500
Signed-off-by: Suravee Suthikulpanit <Suravee.Suthikulpanit@amd.com>
-commit d9d7224bd65fb3c1490f06d635b7aceb035acb1e
+commit 2bf2a4a102bbe2abf7b2306e89d4d59fb7ade8d2
Author: Graeme Gregory <graeme.gregory@linaro.org>
Date: Wed Aug 13 13:47:18 2014 +0100
@@ -369,37 +655,7 @@ Date: Wed Aug 13 13:47:18 2014 +0100
Signed-off-by: Graeme Gregory <graeme.gregory@linaro.org>
-commit 4c67296fce53fed671a78b698d4552636f499b7f
-Author: Mark Salter <msalter@redhat.com>
-Date: Thu Aug 14 13:17:37 2014 -0400
-
- arm64: set dma coherency ops for ACPI probed devices
-
- Search for a _CCA object and set the correct dma ops based
- on device coherency attribute and architecture default.
-
- Signed-off-by: Mark Salter <msalter@redhat.com>
-
-commit 959c571815c440150b2f290bf3d13b2fbadbee70
-Author: Mark Salter <msalter@redhat.com>
-Date: Thu Aug 14 12:32:13 2014 -0400
-
- acpi: add utility to test for device dma coherency
-
- ACPI 5.1 adds a _CCA object to indicate memory coherency
- of a bus master device. It is an integer with zero meaning
- non-coherent and one meaning coherent. This attribute may
- be inherited from a parent device. It may also be missing
- entirely, in which case, an architecture-specific default
- is assumed.
-
- This patch adds a utility function to parse a device handle
- (and its parents) for a _CCA object and return the coherency
- attribute if found.
-
- Signed-off-by: Mark Salter <msalter@redhat.com>
-
-commit 0dbac48379d3aace2fd7468d83044116f176b4c9
+commit 5c62121c6de8268b06d563596953ce71d292733a
Author: Mark Salter <msalter@redhat.com>
Date: Mon Sep 8 11:58:46 2014 -0400
@@ -413,7 +669,7 @@ Date: Mon Sep 8 11:58:46 2014 -0400
Signed-off-by: Mark Salter <msalter@redhat.com>
-commit c9eab819c2107e0c95cf57233de4de5404851ab6
+commit c4f70201c3e20f95c1a96929cf8e524a82dddf81
Author: Graeme Gregory <graeme.gregory@linaro.org>
Date: Mon Sep 8 10:36:44 2014 -0400
@@ -425,7 +681,7 @@ Date: Mon Sep 8 10:36:44 2014 -0400
Signed-off-by: Al Stone <al.stone@linaro.org>
Signed-off-by: Graeme Gregory <graeme.gregory@linaro.org>
-commit 7e772a485f980b826a58ecd9c39fbe82085c55fa
+commit e632bb50e732757dd8ac56f94785b86c300585ba
Author: Mark Salter <msalter@redhat.com>
Date: Mon Sep 8 17:04:28 2014 -0400
@@ -437,7 +693,7 @@ Date: Mon Sep 8 17:04:28 2014 -0400
Signed-off-by: Mark Salter <msalter@redhat.com>
-commit b42e8f7901e58b86a1cb3ffdf14cb2455fd91ede
+commit 51ba60203fe3cb844f1b56389dc840ecf0264817
Author: Graeme Gregory <graeme.gregory@linaro.org>
Date: Fri Sep 12 22:00:16 2014 +0800
@@ -449,7 +705,7 @@ Date: Fri Sep 12 22:00:16 2014 +0800
Signed-off-by: Graeme Gregory <graeme.gregory@linaro.org>
Signed-off-by: Hanjun Guo <hanjun.guo@linaro.org>
-commit 57dc75b87d5663181e1c19802297e72e51a324ba
+commit 49c2936aebfdc0d6fb6f8a2ed85295e4370afac7
Author: Graeme Gregory <graeme.gregory@linaro.org>
Date: Fri Sep 12 22:00:15 2014 +0800
@@ -465,7 +721,7 @@ Date: Fri Sep 12 22:00:15 2014 +0800
Signed-off-by: Al Stone <al.stone@linaro.org>
Signed-off-by: Hanjun Guo <hanjun.guo@linaro.org>
-commit 106c5cb3caff13c91cb6056f88a1c0e710b8e0eb
+commit 4a1bcc17290231af1cfbef33aa6ec77aca609389
Author: Al Stone <al.stone@linaro.org>
Date: Fri Sep 12 22:00:14 2014 +0800
@@ -479,7 +735,7 @@ Date: Fri Sep 12 22:00:14 2014 +0800
Signed-off-by: Al Stone <al.stone@linaro.org>
Signed-off-by: Hanjun Guo <hanjun.guo@linaro.org>
-commit 73f4aca21985ace8989b6fc8af503940c469f1d7
+commit 2863c8dd559eaa85dbec982045ae8201bdd0216e
Author: Hanjun Guo <hanjun.guo@linaro.org>
Date: Fri Sep 12 22:00:13 2014 +0800
@@ -491,7 +747,7 @@ Date: Fri Sep 12 22:00:13 2014 +0800
Originally-by: Amit Daniel Kachhap <amit.daniel@samsung.com>
Signed-off-by: Hanjun Guo <hanjun.guo@linaro.org>
-commit 5efba15fb24c25139dd621a417f2b9cbe2e675f5
+commit 75398d7dfd0a9bb67c70568bbc49e79d43681516
Author: Tomasz Nowicki <tomasz.nowicki@linaro.org>
Date: Fri Sep 12 22:00:12 2014 +0800
@@ -509,7 +765,7 @@ Date: Fri Sep 12 22:00:12 2014 +0800
Signed-off-by: Tomasz Nowicki <tomasz.nowicki@linaro.org>
Signed-off-by: Hanjun Guo <hanjun.guo@linaro.org>
-commit e060d9d74cecff59ea96d6124ffb1c9c044a4f9d
+commit 325e4412a370d58213bd1cd9de5a5f104dd2bab4
Author: Hanjun Guo <hanjun.guo@linaro.org>
Date: Fri Sep 12 22:00:11 2014 +0800
@@ -525,7 +781,7 @@ Date: Fri Sep 12 22:00:11 2014 +0800
Originally-by: Amit Daniel Kachhap <amit.daniel@samsung.com>
Signed-off-by: Hanjun Guo <hanjun.guo@linaro.org>
-commit c25e8f66c630713107967076933b5f349655ea6a
+commit 4537275d3b1611bb1102eadfce56af2d36d1c25b
Author: Hanjun Guo <hanjun.guo@linaro.org>
Date: Fri Sep 12 22:00:10 2014 +0800
@@ -539,7 +795,7 @@ Date: Fri Sep 12 22:00:10 2014 +0800
Signed-off-by: Hanjun Guo <hanjun.guo@linaro.org>
-commit 5ce1c3ff91aa9d8012324518789363bb4ded33d4
+commit 5ae8a2bbb06f1833c6494fc7a5f30931cc4b5d9a
Author: Hanjun Guo <hanjun.guo@linaro.org>
Date: Fri Sep 12 22:00:09 2014 +0800
@@ -558,7 +814,7 @@ Date: Fri Sep 12 22:00:09 2014 +0800
Signed-off-by: Hanjun Guo <hanjun.guo@linaro.org>
Signed-off-by: Tomasz Nowicki <tomasz.nowicki@linaro.org>
-commit 8634cf0fcc8294c355d7cecb55da017ba9ff3ff7
+commit 4a3aed9caf1780e72030a7efc32d28a32d3ed603
Author: Hanjun Guo <hanjun.guo@linaro.org>
Date: Fri Sep 12 22:00:08 2014 +0800
@@ -570,7 +826,7 @@ Date: Fri Sep 12 22:00:08 2014 +0800
Signed-off-by: Hanjun Guo <hanjun.guo@linaro.org>
Signed-off-by: Tomasz Nowicki <tomasz.nowicki@linaro.org>
-commit 05facef9c824235c82d8d9c2ae03fe7a729ceef8
+commit d9f88c9f5385ac2ae7c87ca0ee63e8e77a37ca09
Author: Hanjun Guo <hanjun.guo@linaro.org>
Date: Fri Sep 12 22:00:07 2014 +0800
@@ -599,7 +855,7 @@ Date: Fri Sep 12 22:00:07 2014 +0800
Signed-off-by: Graeme Gregory <graeme.gregory@linaro.org>
Signed-off-by: Tomasz Nowicki <tomasz.nowicki@linaro.org>
-commit a13a8c748b6170a8a3f4876163ff74e460bd889f
+commit f5b32d09a98c2d5353915d2bcc3d7fa3151b6890
Author: Hanjun Guo <hanjun.guo@linaro.org>
Date: Fri Sep 12 22:00:06 2014 +0800
@@ -614,7 +870,7 @@ Date: Fri Sep 12 22:00:06 2014 +0800
Signed-off-by: Hanjun Guo <hanjun.guo@linaro.org>
-commit a6bf98355490142fc3f6e9c0839af128e326f16d
+commit 445abae9b9e86d9bd81b3cbffc5d20e8cb375ab0
Author: Graeme Gregory <graeme.gregory@linaro.org>
Date: Fri Sep 12 22:00:05 2014 +0800
@@ -627,7 +883,7 @@ Date: Fri Sep 12 22:00:05 2014 +0800
Signed-off-by: Graeme Gregory <graeme.gregory@linaro.org>
Signed-off-by: Hanjun Guo <hanjun.guo@linaro.org>
-commit e3b9886532d1e13ddb68e4955ad776a8623f9766
+commit fad554282770ff7d0a0b002bb2c3d289ad5cc187
Author: Al Stone <al.stone@linaro.org>
Date: Fri Sep 12 22:00:04 2014 +0800
@@ -643,7 +899,7 @@ Date: Fri Sep 12 22:00:04 2014 +0800
Signed-off-by: Graeme Gregory <graeme.gregory@linaro.org>
Signed-off-by: Hanjun Guo <hanjun.guo@linaro.org>
-commit cf1cbe39385d417286a98e3abd7ea3456be2e88c
+commit ed545c4a15e82373747e2ca4dd44c313a5cbfdbc
Author: Graeme Gregory <graeme.gregory@linaro.org>
Date: Fri Sep 12 22:00:03 2014 +0800
@@ -658,7 +914,7 @@ Date: Fri Sep 12 22:00:03 2014 +0800
Signed-off-by: Tomasz Nowicki <tomasz.nowicki@linaro.org>
Signed-off-by: Hanjun Guo <hanjun.guo@linaro.org>
-commit 90e5cfbaf183d0eb92f1977c24da20c4e0a2f6be
+commit f6b5641dd6b5bf915ee9c18bb0f44f07b858bfc2
Author: Al Stone <al.stone@linaro.org>
Date: Fri Sep 12 22:00:02 2014 +0800
@@ -690,7 +946,7 @@ Date: Fri Sep 12 22:00:02 2014 +0800
Signed-off-by: Tomasz Nowicki <tomasz.nowicki@linaro.org>
Signed-off-by: Hanjun Guo <hanjun.guo@linaro.org>
-commit 2fe5d24887dea3f1bffabf04e364fa9f355ed553
+commit 7a5a04722c2527962e4b1ebc979e185a64ed11b4
Author: Tomasz Nowicki <tomasz.nowicki@linaro.org>
Date: Fri Sep 12 22:00:01 2014 +0800
@@ -708,7 +964,7 @@ Date: Fri Sep 12 22:00:01 2014 +0800
Signed-off-by: Tomasz Nowicki <tomasz.nowicki@linaro.org>
Signed-off-by: Hanjun Guo <hanjun.guo@linaro.org>
-commit 8c278c76231f0ba0110e755678eefdd6d077f5da
+commit 80eb7126770fd6b5c595e4733fb3194bda75f25b
Author: Ashwin Chaugule <ashwin.chaugule@linaro.org>
Date: Fri Sep 12 22:00:00 2014 +0800
@@ -725,7 +981,7 @@ Date: Fri Sep 12 22:00:00 2014 +0800
Signed-off-by: Tomasz Nowicki <tomasz.nowicki@linaro.org>
Signed-off-by: Hanjun Guo <hanjun.guo@linaro.org>
-commit 651ab5ff6804fa0f516715b4d47399e587944de0
+commit 36633ceecab0b57354030ba4e796c3eccb0084a8
Author: Hanjun Guo <hanjun.guo@linaro.org>
Date: Fri Sep 12 21:59:59 2014 +0800
@@ -737,312 +993,7 @@ Date: Fri Sep 12 21:59:59 2014 +0800
Signed-off-by: Hanjun Guo <hanjun.guo@linaro.org>
-commit b91246f1a7120de6de8fe630ed01e9a0d0415e88
-Author: Tanmay Inamdar <tinamdar@apm.com>
-Date: Fri Sep 26 14:08:27 2014 -0700
-
- MAINTAINERS: entry for APM X-Gene PCIe host driver
-
- Add entry for AppliedMicro X-Gene PCIe host driver.
-
- Signed-off-by: Tanmay Inamdar <tinamdar@apm.com>
-
-commit d20b104083718058b599a5ca1a925d8c5243e2e1
-Author: Tanmay Inamdar <tinamdar@apm.com>
-Date: Fri Sep 26 14:08:26 2014 -0700
-
- dt-bindings: pci: xgene pcie device tree bindings
-
- This patch adds the bindings for X-Gene PCIe driver. The driver resides
- under 'drivers/pci/host/pci-xgene.c' file.
-
- Signed-off-by: Tanmay Inamdar <tinamdar@apm.com>
-
-commit 9c429c919b77a3a63ac2843e9e0e2e50e59d28f3
-Author: Tanmay Inamdar <tinamdar@apm.com>
-Date: Fri Sep 26 14:08:25 2014 -0700
-
- arm64: dts: APM X-Gene PCIe device tree nodes
-
- This patch adds the device tree nodes for APM X-Gene PCIe host controller and
- PCIe clock interface. Since X-Gene SOC supports maximum 5 ports, 5 dts
- nodes are added.
-
- Signed-off-by: Tanmay Inamdar <tinamdar@apm.com>
-
-commit 3aa4f71932b67e648aff4ae0dc5ace7162d74c1c
-Author: Tanmay Inamdar <tinamdar@apm.com>
-Date: Fri Sep 26 14:08:24 2014 -0700
-
- pci:host: APM X-Gene PCIe host controller driver
-
- This patch adds the AppliedMicro X-Gene SOC PCIe host controller driver.
- X-Gene PCIe controller supports maximum up to 8 lanes and GEN3 speed.
- X-Gene SOC supports maximum 5 PCIe ports.
-
- Reviewed-by: Liviu Dudau <Liviu.Dudau@arm.com>
- Tested-by: Ming Lei <ming.lei@canonical.com>
- Tested-by: Dann Frazier <dann.frazier@canonical.com>
- Signed-off-by: Tanmay Inamdar <tinamdar@apm.com>
-
-commit f3c00bd4ae49b19923049f0f4f9d6a95eaa61b1e
-Author: Liviu Dudau <Liviu.Dudau@arm.com>
-Date: Tue Sep 23 20:01:14 2014 +0100
-
- arm64: Add architectural support for PCI
-
- Use the generic PCI domain and OF functions to provide support for PCI
- on arm64.
-
- [bhelgaas: Change comments to use generic PCI, not just PCIe. Nothing at
- this level is PCIe-specific.]
- Signed-off-by: Liviu Dudau <Liviu.Dudau@arm.com>
- Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
- Acked-by: Catalin Marinas <catalin.marinas@arm.com>
-
-commit 497220defa08534526ad7b20a9c7eb2d0d903ca4
-Author: Liviu Dudau <Liviu.Dudau@arm.com>
-Date: Tue Sep 23 20:01:13 2014 +0100
-
- PCI: Add pci_remap_iospace() to map bus I/O resources
-
- Add pci_remap_iospace() to map bus I/O resources into the CPU virtual
- address space. Architectures with special needs may provide their own
- version, but most should be able to use this one.
-
- This function is useful for PCI host bridge drivers that need to map the
- PCI I/O resources into virtual memory space.
-
- [bhelgaas: phys_addr description, drop temporary "err" variable]
- Signed-off-by: Liviu Dudau <Liviu.Dudau@arm.com>
- Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
- Reviewed-by: Rob Herring <robh@kernel.org>
- Reviewed-by: Catalin Marinas <catalin.marinas@arm.com>
- CC: Arnd Bergmann <arnd@arndb.de>
-
-commit 7a46ace11cf09b3713dcdc2ef4a17130a738f856
-Author: Liviu Dudau <Liviu.Dudau@arm.com>
-Date: Tue Sep 23 20:01:12 2014 +0100
-
- PCI: Assign unassigned bus resources in pci_scan_root_bus()
-
- If the firmware has not assigned all the bus resources and we are not just
- probing the PCI buses, it makes sense to assign the unassigned resources
- in pci_scan_root_bus().
-
- Signed-off-by: Liviu Dudau <Liviu.Dudau@arm.com>
- Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
- CC: Arnd Bergmann <arnd@arndb.de>
- CC: Jason Gunthorpe <jgunthorpe@obsidianresearch.com>
- CC: Rob Herring <robh+dt@kernel.org>
-
-commit fe33bc876010c3ef700c863099f2c3c1a5e2c18b
-Author: Liviu Dudau <Liviu.Dudau@arm.com>
-Date: Wed Sep 24 11:27:33 2014 -0600
-
- of/pci: Add support for parsing PCI host bridge resources from DT
-
- Provide a function to parse the PCI DT ranges that can be used to create a
- pci_host_bridge structure together with its associated bus.
-
- Signed-off-by: Liviu Dudau <Liviu.Dudau@arm.com>
- [make io_base parameter optional]
- Signed-off-by: Robert Richter <rrichter@cavium.com>
- Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
- CC: Arnd Bergmann <arnd@arndb.de>
- CC: Grant Likely <grant.likely@linaro.org>
- CC: Rob Herring <robh+dt@kernel.org>
- CC: Catalin Marinas <catalin.marinas@arm.com>
-
-commit 71094afda69ac873bb3d6486307e3048e21e912c
-Author: Liviu Dudau <Liviu.Dudau@arm.com>
-Date: Tue Sep 23 20:01:10 2014 +0100
-
- of/pci: Add of_pci_get_domain_nr() and of_get_pci_domain_nr()
-
- Add pci_get_new_domain_nr() to allocate a new domain number and
- of_get_pci_domain_nr() to retrieve the PCI domain number of a given device
- from DT. Host bridge drivers or architecture-specific code can choose to
- implement their PCI domain number policy using these two functions.
-
- Using of_get_pci_domain_nr() guarantees a stable PCI domain number on every
- boot provided that all host bridge controllers are assigned a number in the
- device tree using "linux,pci-domain" property. Mixing use of
- pci_get_new_domain_nr() and of_get_pci_domain_nr() is not recommended as it
- can lead to potentially conflicting domain numbers being assigned to root
- buses behind different host bridges.
-
- Signed-off-by: Liviu Dudau <Liviu.Dudau@arm.com>
- Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
- CC: Arnd Bergmann <arnd@arndb.de>
- CC: Grant Likely <grant.likely@linaro.org>
- CC: Rob Herring <robh+dt@kernel.org>
- CC: Catalin Marinas <catalin.marinas@arm.com>
-
-commit 6b385455f18d15da6b5d60a3b67fdb846ae1a3b1
-Author: Catalin Marinas <catalin.marinas@arm.com>
-Date: Tue Sep 23 20:01:09 2014 +0100
-
- PCI: Add generic domain handling
-
- The handling of PCI domains (or PCI segments in ACPI speak) is usually a
- straightforward affair but its implementation is currently left to the
- architectural code, with pci_domain_nr(b) querying the value of the domain
- associated with bus b.
-
- This patch introduces CONFIG_PCI_DOMAINS_GENERIC as an option that can be
- selected if an architecture wants a simple implementation where the value
- of the domain associated with a bus is stored in struct pci_bus.
-
- The architectures that select CONFIG_PCI_DOMAINS_GENERIC will then have to
- implement pci_bus_assign_domain_nr() as a way of setting the domain number
- associated with a root bus. All child buses except the root bus will
- inherit the domain_nr value from their parent.
-
- Signed-off-by: Catalin Marinas <Catalin.Marinas@arm.com>
- [Renamed pci_set_domain_nr() to pci_bus_assign_domain_nr()]
- Signed-off-by: Liviu Dudau <Liviu.Dudau@arm.com>
- Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
- CC: Arnd Bergmann <arnd@arndb.de>
-
-commit 04b36e0e1da5a96a58dec4f1b393090f00e5b635
-Author: Liviu Dudau <Liviu.Dudau@arm.com>
-Date: Tue Sep 23 20:01:08 2014 +0100
-
- PCI: Create pci_host_bridge before root bus
-
- Before 7b5436635800 ("PCI: add generic device into pci_host_bridge
- struct"), the pci_host_bridge was created before the root bus. Revert the
- order of creation as we are going to depend on the pci_host_bridge
- structure to retrieve the domain number of the root bus.
-
- [bhelgaas: changelog]
- Tested-by: Tanmay Inamdar <tinamdar@apm.com>
- Signed-off-by: Liviu Dudau <Liviu.Dudau@arm.com>
- Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
- Reviewed-by: Catalin Marinas <catalin.marinas@arm.com>
- Acked-by: Grant Likely <grant.likely@linaro.org>
-
-commit 7569c510218798bd7e5216bf14a42c656f14e891
-Author: Liviu Dudau <Liviu.Dudau@arm.com>
-Date: Tue Sep 23 20:01:07 2014 +0100
-
- of/pci: Fix the conversion of IO ranges into IO resources
-
- The ranges property for a host bridge controller in DT describes the
- mapping between the PCI bus address and the CPU physical address. The
- resources framework however expects that the IO resources start at a pseudo
- "port" address 0 (zero) and have a maximum size of IO_SPACE_LIMIT. The
- conversion from PCI ranges to resources failed to take that into account,
- returning a CPU physical address instead of a port number.
-
- Also fix all the drivers that depend on the old behaviour by fetching the
- CPU physical address based on the port number where it is being needed.
-
- Signed-off-by: Liviu Dudau <Liviu.Dudau@arm.com>
- Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
- Acked-by: Linus Walleij <linus.walleij@linaro.org>
- CC: Grant Likely <grant.likely@linaro.org>
- CC: Rob Herring <robh+dt@kernel.org>
- CC: Arnd Bergmann <arnd@arndb.de>
- CC: Thierry Reding <thierry.reding@gmail.com>
- CC: Simon Horman <horms@verge.net.au>
- CC: Catalin Marinas <catalin.marinas@arm.com>
-
-commit 1b381671c9dd2c82cd6f04bc1588d0fc4e1aea59
-Author: Liviu Dudau <Liviu.Dudau@arm.com>
-Date: Tue Sep 23 20:01:06 2014 +0100
-
- of/pci: Move of_pci_range_to_resources() to of/address.c
-
- We need to enhance of_pci_range_to_resources() enough that it won't make
- sense for it to be inline anymore. Move it to drivers/of/address.c,
- keeping it under #ifdef CONFIG_PCI.
-
- [bhelgaas: drop extra detail from changelog, move def under CONFIG_PCI]
- Signed-off-by: Liviu Dudau <Liviu.Dudau@arm.com>
- Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
- CC: Grant Likely <grant.likely@linaro.org>
- CC: Rob Herring <robh+dt@kernel.org>
- CC: Arnd Bergmann <arnd@arndb.de>
- CC: Catalin Marinas <catalin.marinas@arm.com>
-
-commit eedd8f88d4895d5c6bc46cf3ddeb114a0fafb7c3
-Author: Bjorn Helgaas <bhelgaas@google.com>
-Date: Tue Sep 23 17:27:42 2014 -0600
-
- of/pci: Define of_pci_range_to_resource() only when CONFIG_PCI=y
-
- of_pci_range_to_resource() was previously defined always, but it's only
- used by PCI code, so move the definition inside the CONFIG_OF_ADDRESS &&
- CONFIG_PCI block.
-
- Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
-
-commit 4ac73f8ded507537318717bb2b5b6c765db633cd
-Author: Liviu Dudau <Liviu.Dudau@arm.com>
-Date: Tue Sep 23 20:01:05 2014 +0100
-
- ARM: Define PCI_IOBASE as the base of virtual PCI IO space
-
- This is needed for calls into OF code that parses PCI ranges. It signals
- support for memory mapped PCI I/O accesses that are described by device
- trees.
-
- Signed-off-by: Liviu Dudau <Liviu.Dudau@arm.com>
- Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
- Reviewed-by: Catalin Marinas <catalin.marinas@arm.com>
- Acked-by: Arnd Bergmann <arnd@arndb.de>
- CC: Russell King <linux@arm.linux.org.uk>
- CC: Rob Herring <robh+dt@kernel.org>
-
-commit ce7af33b6db857c95ac3b65fef37e589e839cc79
-Author: Liviu Dudau <Liviu.Dudau@arm.com>
-Date: Tue Sep 23 20:01:04 2014 +0100
-
- of/pci: Add pci_register_io_range() and pci_pio_to_address()
-
- Some architectures do not have a simple view of the PCI I/O space and
- instead use a range of CPU addresses that map to bus addresses. For some
- architectures these ranges will be expressed by OF bindings in a device
- tree file.
-
- This patch introduces a pci_register_io_range() helper function with a
- generic implementation that can be used by such architectures to keep track
- of the I/O ranges described by the PCI bindings. If the PCI_IOBASE macro
- is not defined, that signals lack of support for PCI and we return an
- error.
-
- In order to retrieve the CPU address associated with an I/O port, a new
- helper function pci_pio_to_address() is introduced. This will search in
- the list of ranges registered with pci_register_io_range() and return the
- CPU address that corresponds to the given port.
-
- Signed-off-by: Liviu Dudau <Liviu.Dudau@arm.com>
- Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
- Reviewed-by: Catalin Marinas <catalin.marinas@arm.com>
- Acked-by: Rob Herring <robh@kernel.org>
- CC: Grant Likely <grant.likely@linaro.org>
- CC: Arnd Bergmann <arnd@arndb.de>
-
-commit c5d57f95901af49149ebf6dfc3d7518157e41bfa
-Author: Liviu Dudau <Liviu.Dudau@arm.com>
-Date: Tue Sep 23 20:01:03 2014 +0100
-
- asm-generic/io.h: Fix ioport_map() for !CONFIG_GENERIC_IOMAP
-
- The !CONFIG_GENERIC_IOMAP version of ioport_map() is wrong. It returns a
- mapped, i.e., virtual, address that can start from zero and completely
- ignores the PCI_IOBASE and IO_SPACE_LIMIT that most architectures that use
- !CONFIG_GENERIC_MAP define.
-
- Tested-by: Tanmay Inamdar <tinamdar@apm.com>
- Signed-off-by: Liviu Dudau <Liviu.Dudau@arm.com>
- Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
- Reviewed-by: Catalin Marinas <catalin.marinas@arm.com>
- Acked-by: Arnd Bergmann <arnd@arndb.de>
-
-commit a65e51156bec2c8d690b924bbddf1a740309e543
+commit 1029a72c660016d7b566f9b91156068f4a86ccb7
Author: Mark Salter <msalter@redhat.com>
Date: Tue Jun 24 09:50:28 2014 -0400
@@ -1054,92 +1005,7 @@ Date: Tue Jun 24 09:50:28 2014 -0400
Signed-off-by: Mark Salter <msalter@redhat.com>
-commit c6b81122978c39e52021cc7308edafff88c8b87a
-Author: Ard Biesheuvel <ard.biesheuvel@linaro.org>
-Date: Wed Jul 30 11:59:04 2014 +0100
-
- arm64/efi: efistub: don't abort if base of DRAM is occupied
-
- If we cannot relocate the kernel Image to its preferred offset of base of DRAM
- plus TEXT_OFFSET, instead relocate it to the lowest available 2 MB boundary plus
- TEXT_OFFSET. We may lose a bit of memory at the low end, but we can still
- proceed normally otherwise.
-
- Acked-by: Mark Salter <msalter@redhat.com>
- Acked-by: Mark Rutland <mark.rutland@arm.com>
- Acked-by: Leif Lindholm <leif.lindholm@linaro.org>
- Tested-by: Leif Lindholm <leif.lindholm@linaro.org>
- Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
- Signed-off-by: Will Deacon <will.deacon@arm.com>
-
-commit 81fd1d315f3c5b13f9dcf71cce51dfd3a10331c3
-Author: Ard Biesheuvel <ard.biesheuvel@linaro.org>
-Date: Wed Jul 30 11:59:03 2014 +0100
-
- arm64/efi: efistub: cover entire static mem footprint in PE/COFF .text
-
- The static memory footprint of a kernel Image at boot is larger than the
- Image file itself. Things like .bss data and initial page tables are allocated
- statically but populated dynamically so their content is not contained in the
- Image file.
-
- However, if EFI (or GRUB) has loaded the Image at precisely the desired offset
- of base of DRAM + TEXT_OFFSET, the Image will be booted in place, and we have
- to make sure that the allocation done by the PE/COFF loader is large enough.
-
- Fix this by growing the PE/COFF .text section to cover the entire static
- memory footprint. The part of the section that is not covered by the payload
- will be zero initialised by the PE/COFF loader.
-
- Acked-by: Mark Salter <msalter@redhat.com>
- Acked-by: Mark Rutland <mark.rutland@arm.com>
- Acked-by: Leif Lindholm <leif.lindholm@linaro.org>
- Tested-by: Leif Lindholm <leif.lindholm@linaro.org>
- Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
- Signed-off-by: Will Deacon <will.deacon@arm.com>
-
-commit 8f5f73c2117c2dc4e8903d162023c34177327ae3
-Author: Mark Rutland <mark.rutland@arm.com>
-Date: Wed Jul 30 11:59:02 2014 +0100
-
- arm64: spin-table: handle unmapped cpu-release-addrs
-
- In certain cases the cpu-release-addr of a CPU may not fall in the
- linear mapping (e.g. when the kernel is loaded above this address due to
- the presence of other images in memory). This is problematic for the
- spin-table code as it assumes that it can trivially convert a
- cpu-release-addr to a valid VA in the linear map.
-
- This patch modifies the spin-table code to use a temporary cached
- mapping to write to a given cpu-release-addr, enabling us to support
- addresses regardless of whether they are covered by the linear mapping.
-
- Acked-by: Leif Lindholm <leif.lindholm@linaro.org>
- Tested-by: Leif Lindholm <leif.lindholm@linaro.org>
- Tested-by: Mark Salter <msalter@redhat.com>
- Signed-off-by: Mark Rutland <mark.rutland@arm.com>
- [ardb: added (__force void *) cast]
- Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
- Signed-off-by: Will Deacon <will.deacon@arm.com>
-
-commit b00c56bff1ffb6c77655479fb350ee3d5c8bcf63
-Author: Mark Salter <msalter@redhat.com>
-Date: Tue Jun 24 23:16:45 2014 -0400
-
- perf: fix arm64 build error
-
- I'm seeing the following build error on arm64:
-
- In file included from util/event.c:3:0:
- util/event.h:95:17: error: 'PERF_REGS_MAX' undeclared here (not in a function)
- u64 cache_regs[PERF_REGS_MAX];
- ^
-
- This patch adds a PEFF_REGS_MAX definition for arm64.
-
- Signed-off-by: Mark Salter <msalter@redhat.com>
-
-commit f440dcb067bf1367719e8a41b96a2a83c1232690
+commit 0fdae79847bdc64aee1a765c0bb5ee99ed95eb0e
Author: Mark Salter <msalter@redhat.com>
Date: Thu Jul 17 13:34:50 2014 -0400
@@ -1157,7 +1023,7 @@ Date: Thu Jul 17 13:34:50 2014 -0400
Signed-off-by: Mark Salter <msalter@redhat.com>
-commit 93b44dc9e1d73d4864a9350888509792f25e4210
+commit 6e00476b0a33370988b3fee8551c0a8d98206bd2
Author: Kyle McMartin <kmcmarti@redhat.com>
Date: Tue May 13 22:25:26 2014 -0400
@@ -1227,109 +1093,513 @@ Date: Tue May 13 22:25:26 2014 -0400
Signed-off-by: Kyle McMartin <kmcmarti@redhat.com>
Signed-off-by: Donald Dutile <ddutile@redhat.com>
- Documentation/arm64/arm-acpi.txt | 218 +++++++
- .../devicetree/bindings/pci/xgene-pci.txt | 57 ++
- Documentation/kernel-parameters.txt | 3 +-
- MAINTAINERS | 8 +
- arch/arm/include/asm/io.h | 1 +
- arch/arm/include/asm/kvm_mmu.h | 13 +
- arch/arm/kvm/arm.c | 23 +-
- arch/arm/mach-integrator/pci_v3.c | 23 +-
- arch/arm64/Kconfig | 28 +-
- arch/arm64/Makefile | 1 +
- arch/arm64/boot/dts/apm-mustang.dts | 8 +
- arch/arm64/boot/dts/apm-storm.dtsi | 165 ++++++
- arch/arm64/include/asm/Kbuild | 1 +
- arch/arm64/include/asm/acenv.h | 18 +
- arch/arm64/include/asm/acpi.h | 99 ++++
- arch/arm64/include/asm/cpu_ops.h | 1 +
- arch/arm64/include/asm/elf.h | 3 +-
- arch/arm64/include/asm/io.h | 3 +-
- arch/arm64/include/asm/kvm_arm.h | 17 +-
- arch/arm64/include/asm/kvm_mmu.h | 75 +++
- arch/arm64/include/asm/pci.h | 37 ++
- arch/arm64/include/asm/pgtable.h | 2 +
- arch/arm64/include/asm/psci.h | 3 +-
- arch/arm64/include/asm/smp.h | 10 +-
- arch/arm64/kernel/Makefile | 5 +-
- arch/arm64/kernel/acpi.c | 397 +++++++++++++
- arch/arm64/kernel/cpu_ops.c | 8 +-
- arch/arm64/kernel/efi-stub.c | 16 +-
- arch/arm64/kernel/efi.c | 11 +
- arch/arm64/kernel/head.S | 6 +-
- arch/arm64/kernel/pci.c | 70 +++
- arch/arm64/kernel/process.c | 6 +
- arch/arm64/kernel/psci.c | 78 ++-
- arch/arm64/kernel/setup.c | 64 +-
- arch/arm64/kernel/smp.c | 2 +-
- arch/arm64/kernel/smp_parking_protocol.c | 110 ++++
- arch/arm64/kernel/smp_spin_table.c | 22 +-
- arch/arm64/kernel/time.c | 7 +
- arch/arm64/kvm/hyp-init.S | 20 +-
- arch/arm64/mm/dma-mapping.c | 65 ++
- arch/arm64/pci/Makefile | 1 +
- arch/arm64/pci/pci.c | 28 +
- drivers/acpi/Kconfig | 6 +-
- drivers/acpi/Makefile | 6 +-
- drivers/acpi/acpica/utresrc.c | 4 +-
- drivers/acpi/bus.c | 3 +
- drivers/acpi/internal.h | 5 +
- drivers/acpi/osl.c | 6 +-
- drivers/acpi/processor_core.c | 37 ++
- drivers/acpi/sleep-arm.c | 28 +
- drivers/acpi/tables.c | 115 +++-
- drivers/acpi/utils.c | 26 +
- drivers/ata/Kconfig | 2 +-
- drivers/ata/ahci_platform.c | 13 +
- drivers/ata/ahci_xgene.c | 30 +-
- drivers/clocksource/arm_arch_timer.c | 120 +++-
- drivers/irqchip/irq-gic-v3.c | 10 +
- drivers/irqchip/irq-gic.c | 116 ++++
- drivers/irqchip/irqchip.c | 3 +
- drivers/net/ethernet/amd/xgbe/xgbe-dev.c | 12 +
- drivers/net/ethernet/amd/xgbe/xgbe-drv.c | 3 +
- drivers/net/ethernet/amd/xgbe/xgbe-main.c | 1 +
- drivers/net/ethernet/amd/xgbe/xgbe.h | 3 +
- drivers/net/ethernet/smsc/smc91x.c | 10 +
- drivers/net/phy/amd-xgbe-phy.c | 408 +++++++------
- drivers/of/address.c | 154 +++++
- drivers/of/of_pci.c | 142 +++++
- drivers/pci/host/Kconfig | 10 +
- drivers/pci/host/Makefile | 1 +
- drivers/pci/host/pci-tegra.c | 10 +-
- drivers/pci/host/pci-xgene.c | 659 +++++++++++++++++++++
- drivers/pci/host/pcie-rcar.c | 21 +-
- drivers/pci/pci.c | 40 ++
- drivers/pci/probe.c | 46 +-
- drivers/pnp/resource.c | 2 +
- drivers/tty/Kconfig | 6 +
- drivers/tty/Makefile | 1 +
- drivers/tty/sbsauart.c | 355 +++++++++++
- drivers/tty/serial/8250/8250_dw.c | 9 +
- drivers/virtio/virtio_mmio.c | 12 +-
- include/acpi/acnames.h | 4 +
- include/acpi/acpi_bus.h | 2 +
- include/acpi/acpi_io.h | 6 +
- include/acpi/acpixf.h | 2 +-
- include/acpi/actbl1.h | 19 +-
- include/acpi/actbl3.h | 9 +-
- include/asm-generic/io.h | 2 +-
- include/asm-generic/pgtable.h | 4 +
- include/kvm/arm_vgic.h | 20 +-
- include/linux/acpi.h | 5 +
- include/linux/clocksource.h | 6 +
- include/linux/irqchip/arm-gic-acpi.h | 31 +
- include/linux/irqchip/arm-gic.h | 2 +
- include/linux/of_address.h | 17 +-
- include/linux/of_pci.h | 13 +
- include/linux/pci.h | 64 +-
- tools/perf/arch/arm64/include/perf_regs.h | 2 +
- virt/kvm/arm/arch_timer.c | 108 ++--
- virt/kvm/arm/vgic-v2.c | 75 ++-
- virt/kvm/arm/vgic-v3.c | 8 +-
- virt/kvm/arm/vgic.c | 32 +-
- 101 files changed, 4112 insertions(+), 487 deletions(-)
-
+ Documentation/acpi/properties.txt | 410 ++++++++++++
+ Documentation/arm64/arm-acpi.txt | 218 +++++++
+ Documentation/kernel-parameters.txt | 3 +-
+ arch/arm64/Kconfig | 6 +
+ arch/arm64/Makefile | 1 +
+ arch/arm64/include/asm/acenv.h | 18 +
+ arch/arm64/include/asm/acpi.h | 99 +++
+ arch/arm64/include/asm/cpu_ops.h | 1 +
+ arch/arm64/include/asm/elf.h | 3 +-
+ arch/arm64/include/asm/psci.h | 3 +-
+ arch/arm64/include/asm/smp.h | 10 +-
+ arch/arm64/kernel/Makefile | 4 +-
+ arch/arm64/kernel/acpi.c | 397 ++++++++++++
+ arch/arm64/kernel/cpu_ops.c | 8 +-
+ arch/arm64/kernel/efi.c | 11 +
+ arch/arm64/kernel/process.c | 6 +
+ arch/arm64/kernel/psci.c | 78 ++-
+ arch/arm64/kernel/setup.c | 64 +-
+ arch/arm64/kernel/smp.c | 2 +-
+ arch/arm64/kernel/smp_parking_protocol.c | 110 ++++
+ arch/arm64/kernel/time.c | 7 +
+ arch/arm64/mm/dma-mapping.c | 103 +++
+ arch/arm64/pci/Makefile | 1 +
+ arch/arm64/pci/pci.c | 28 +
+ drivers/acpi/Kconfig | 6 +-
+ drivers/acpi/Makefile | 7 +-
+ drivers/acpi/bus.c | 3 +
+ drivers/acpi/internal.h | 11 +
+ drivers/acpi/osl.c | 6 +-
+ drivers/acpi/processor_core.c | 37 ++
+ drivers/acpi/property.c | 586 +++++++++++++++++
+ drivers/acpi/scan.c | 93 ++-
+ drivers/acpi/sleep-arm.c | 28 +
+ drivers/acpi/tables.c | 115 +++-
+ drivers/acpi/utils.c | 26 +
+ drivers/ata/Kconfig | 2 +-
+ drivers/ata/ahci_platform.c | 13 +
+ drivers/ata/ahci_xgene.c | 30 +-
+ drivers/base/Makefile | 2 +-
+ drivers/base/property.c | 235 +++++++
+ drivers/clocksource/arm_arch_timer.c | 131 +++-
+ drivers/gpio/devres.c | 34 +
+ drivers/gpio/gpio-sch.c | 293 ++++-----
+ drivers/gpio/gpiolib-acpi.c | 78 ++-
+ drivers/gpio/gpiolib.c | 86 ++-
+ drivers/gpio/gpiolib.h | 7 +-
+ drivers/input/keyboard/gpio_keys_polled.c | 163 ++---
+ drivers/irqchip/irq-gic-v3.c | 10 +
+ drivers/irqchip/irq-gic.c | 116 ++++
+ drivers/irqchip/irqchip.c | 3 +
+ drivers/leds/leds-gpio.c | 185 +++---
+ drivers/misc/eeprom/at25.c | 41 +-
+ drivers/net/ethernet/amd/Kconfig | 2 +-
+ drivers/net/ethernet/amd/xgbe/xgbe-dev.c | 16 +-
+ drivers/net/ethernet/amd/xgbe/xgbe-drv.c | 3 +
+ drivers/net/ethernet/amd/xgbe/xgbe-main.c | 294 +++++++--
+ drivers/net/ethernet/amd/xgbe/xgbe-mdio.c | 20 +-
+ drivers/net/ethernet/amd/xgbe/xgbe-ptp.c | 4 +-
+ drivers/net/ethernet/amd/xgbe/xgbe.h | 13 +
+ drivers/net/ethernet/apm/xgene/xgene_enet_hw.c | 77 ++-
+ drivers/net/ethernet/apm/xgene/xgene_enet_main.c | 68 +-
+ drivers/net/ethernet/apm/xgene/xgene_enet_main.h | 1 +
+ drivers/net/ethernet/smsc/smc91x.c | 10 +
+ drivers/net/phy/Kconfig | 2 +-
+ drivers/net/phy/amd-xgbe-phy.c | 777 ++++++++++++-----------
+ drivers/of/base.c | 186 ++++++
+ drivers/pnp/resource.c | 2 +
+ drivers/tty/Kconfig | 6 +
+ drivers/tty/Makefile | 1 +
+ drivers/tty/sbsauart.c | 355 +++++++++++
+ drivers/tty/serial/8250/8250_dw.c | 9 +
+ drivers/virtio/virtio_mmio.c | 12 +-
+ include/acpi/acpi_bus.h | 10 +
+ include/acpi/acpi_io.h | 6 +
+ include/kvm/arm_vgic.h | 20 +-
+ include/linux/acpi.h | 95 ++-
+ include/linux/clocksource.h | 6 +
+ include/linux/gpio/consumer.h | 5 +
+ include/linux/gpio_keys.h | 3 +
+ include/linux/irqchip/arm-gic-acpi.h | 31 +
+ include/linux/irqchip/arm-gic.h | 2 +
+ include/linux/leds.h | 1 +
+ include/linux/of.h | 37 ++
+ include/linux/pci.h | 37 +-
+ include/linux/property.h | 207 ++++++
+ virt/kvm/arm/arch_timer.c | 108 ++--
+ virt/kvm/arm/vgic-v2.c | 75 ++-
+ virt/kvm/arm/vgic-v3.c | 8 +-
+ virt/kvm/arm/vgic.c | 32 +-
+ 89 files changed, 5425 insertions(+), 1054 deletions(-)
+
+diff --git a/Documentation/acpi/properties.txt b/Documentation/acpi/properties.txt
+new file mode 100644
+index 0000000..13a93c5
+--- /dev/null
++++ b/Documentation/acpi/properties.txt
+@@ -0,0 +1,410 @@
++ACPI device properties
++======================
++This document describes the format and interfaces of ACPI device
++properties as specified in "Device Properties UUID For _DSD" available
++here:
++
++http://www.uefi.org/sites/default/files/resources/_DSD-device-properties-UUID.pdf
++
++1. Introduction
++---------------
++In systems that use ACPI and want to take advantage of device specific
++properties, there needs to be a standard way to return and extract
++name-value pairs for a given ACPI device.
++
++An ACPI device that wants to export its properties must implement a
++static name called _DSD that takes no arguments and returns a package of
++packages:
++
++ Name (_DSD, Package () {
++ ToUUID("daffd814-6eba-4d8c-8a91-bc9bbf4aa301"),
++ Package () {
++ Package () {"name1", <VALUE1>},
++ Package () {"name2", <VALUE2>}
++ }
++ })
++
++The UUID identifies contents of the following package. In case of ACPI
++device properties it is daffd814-6eba-4d8c-8a91-bc9bbf4aa301.
++
++In each returned package, the first item is the name and must be a string.
++The corresponding value can be a string, integer, reference, or package. If
++a package it may only contain strings, integers, and references.
++
++An example device where we might need properties is a device that uses
++GPIOs. In addition to the GpioIo/GpioInt resources the driver needs to
++know which GPIO is used for which purpose.
++
++To solve this we add the following ACPI device properties to the device:
++
++ Device (DEV0)
++ {
++ Name (_CRS, ResourceTemplate () {
++ GpioIo (Exclusive, PullUp, 0, 0, IoRestrictionInputOnly,
++ "\\_SB.PCI0.LPC", 0, ResourceConsumer) {0}
++ GpioIo (Exclusive, PullUp, 0, 0, IoRestrictionInputOnly,
++ "\\_SB.PCI0.LPC", 0, ResourceConsumer) {1}
++ ...
++ })
++
++ Name (_DSD, Package () {
++ ToUUID("daffd814-6eba-4d8c-8a91-bc9bbf4aa301"),
++ Package () {
++ Package () {"reset-gpio", {^DEV0, 0, 0, 0}},
++ Package () {"shutdown-gpio", {^DEV0, 1, 0, 0}},
++ }
++ })
++ }
++
++Now the device driver can reference the GPIOs using names instead of
++using indexes.
++
++If there is an existing Device Tree binding for a device, it is expected
++that the same bindings are used with ACPI properties, so that the driver
++dealing with the device needs only minor modifications if any.
++
++2. Formal definition of properties
++----------------------------------
++The following chapters define the currently supported properties. For
++these there exists a helper function that can be used to extract the
++property value.
++
++2.1 Integer types
++-----------------
++ACPI integers are always 64-bit. However, for drivers the full range is
++typically not needed so we provide a set of functions which convert the
++64-bit integer to a smaller Linux integer type.
++
++An integer property looks like this:
++
++ Package () {"i2c-sda-hold-time-ns", 300},
++ Package () {"clock-frequency", 400000},
++
++To read a property value, use a unified property accessor as shown
++below:
++
++ u32 val;
++ int ret;
++
++ ret = device_property_read_u32(dev, "clock-frequency", &val);
++ if (ret)
++ /* Handle error */
++
++The function returns 0 if the property is copied to 'val' or negative
++errno if something went wrong (or the property does not exist).
++
++2.2 Integer arrays
++------------------
++An integer array is a package holding only integers. Arrays can be used to
++represent different things like Linux input key codes to GPIO mappings, pin
++control settings, dma request lines, etc.
++
++An integer array looks like this:
++
++ Package () {
++ "max8952,dvs-mode-microvolt",
++ Package () {
++ 1250000,
++ 1200000,
++ 1050000,
++ 950000,
++ }
++ }
++
++The above array property can be accessed like:
++
++ u32 voltages[4];
++ int ret;
++
++ ret = device_property_read_u32_array(dev, "max8952,dvs-mode-microvolt",
++ voltages, ARRAY_SIZE(voltages));
++ if (ret)
++ /* Handle error */
++
++
++All functions copy the resulting values cast to a requested type to the
++caller supplied array. If you pass NULL in the value pointer ('voltages' in
++this case), the function returns number of items in the array. This can be
++useful if caller does not know size of the array beforehand.
++
++2.3 Strings
++-----------
++String properties can be used to describe many things like labels for GPIO
++buttons, compability ids, etc.
++
++A string property looks like this:
++
++ Package () {"pwm-names", "backlight"},
++ Package () {"label", "Status-LED"},
++
++You can use device_property_read_string() to extract strings:
++
++ const char *val;
++ int ret;
++
++ ret = device_property_read_string(dev, "label", &val);
++ if (ret)
++ /* Handle error */
++
++Note that the function does not copy the returned string but instead the
++value is modified to point to the string property itself.
++
++The memory is owned by the associated ACPI device object and released
++when it is removed. The user need not free the associated memory.
++
++2.4 String arrays
++-----------------
++String arrays can be useful in describing a list of labels, names for
++DMA channels, etc.
++
++A string array property looks like this:
++
++ Package () {"dma-names", Package () {"tx", "rx", "rx-tx"}},
++ Package () {"clock-output-names", Package () {"pll", "pll-switched"}},
++
++And these can be read in similar way that the integer arrrays:
++
++ const char *dma_names[3];
++ int ret;
++
++ ret = device_property_read_string_array(dev, "dma-names", dma_names,
++ ARRAY_SIZE(dma_names));
++ if (ret)
++ /* Handle error */
++
++The memory management rules follow what is specified for single strings.
++Specifically the returned pointers should be treated as constant and not to
++be freed. That is done automatically when the correspondig ACPI device
++object is released.
++
++2.5 Object references
++---------------------
++An ACPI object reference is used to refer to some object in the
++namespace. For example, if a device has dependencies with some other
++object, an object reference can be used.
++
++An object reference looks like this:
++
++ Package () {"dev0", \_SB.DEV0},
++
++At the time of writing this, there is no unified device_property_* accessor
++for references so one needs to use the following ACPI helper function:
++
++ int acpi_dev_get_property_reference(struct acpi_device *adev,
++ const char *name,
++ const char *size_prop, int index,
++ struct acpi_reference_args *args);
++
++The referenced ACPI device is returned in args->adev if found.
++
++In addition to simple object references it is also possible to have object
++references with arguments. These are represented in ASL as follows:
++
++ Device (\_SB.PCI0.PWM)
++ {
++ Name (_DSD, Package () {
++ ToUUID("daffd814-6eba-4d8c-8a91-bc9bbf4aa301"),
++ Package () {
++ Package () {"#pwm-cells", 2}
++ }
++ })
++ }
++
++ Device (\_SB.PCI0.BL)
++ {
++ Name (_DSD, Package () {
++ ToUUID("daffd814-6eba-4d8c-8a91-bc9bbf4aa301"),
++ Package () {
++ Package () {
++ "pwms",
++ Package () {
++ \_SB.PCI0.PWM, 0, 5000000,
++ \_SB.PCI0.PWM, 1, 4500000,
++ }
++ }
++ }
++ })
++ }
++
++In the above example, the referenced device declares a property that
++returns the number of expected arguments (here it is "#pwm-cells"). If
++no such property is given we assume that all the integers following the
++reference are arguments.
++
++In the above example PWM device expects 2 additional arguments. This
++will be validated by the ACPI property core.
++
++The additional arguments must be integers. Nothing else is supported.
++
++It is possible, as in the above example, to have multiple references
++with varying number of integer arguments. It is up to the referenced
++device to declare how many arguments it expects. The 'index' parameter
++selects which reference is returned.
++
++One can use acpi_dev_get_property_reference() as well to extract the
++information in additional parameters:
++
++ struct acpi_reference_args args;
++ struct acpi_device *adev = /* this will point to the BL device */
++ int ret;
++
++ /* extract the first reference */
++ acpi_dev_get_property_reference(adev, "pwms", "#pwm-cells", 0, &args);
++
++ BUG_ON(args.nargs != 2);
++ BUG_ON(args.args[0] != 0);
++ BUG_ON(args.args[1] != 5000000);
++
++ /* extract the second reference */
++ acpi_dev_get_property_reference(adev, "pwms", "#pwm-cells", 1, &args);
++
++ BUG_ON(args.nargs != 2);
++ BUG_ON(args.args[0] != 1);
++ BUG_ON(args.args[1] != 4500000);
++
++In addition to arguments, args.adev now points to the ACPI device that
++corresponds to \_SB.PCI0.PWM.
++
++It is intended that this function is not used directly but instead
++subsystems like pwm implement their ACPI support on top of this function
++in such way that it is hidden from the client drivers, such as via
++pwm_get().
++
++3. Device property hierarchies
++------------------------------
++Devices are organized in a tree within the Linux kernel. It follows that
++the configuration data would also be hierarchical. In order to reach
++equivalence with Device Tree, the ACPI mechanism must also provide some
++sort of tree-like representation. Fortunately, the ACPI namespace is
++already such a structure.
++
++For example, we could have the following device in ACPI namespace. The
++KEYS device is much like gpio_keys_polled.c in that it includes "pseudo"
++devices for each GPIO:
++
++ Device (KEYS)
++ {
++ Name (_CRS, ResourceTemplate () {
++ GpioIo (Exclusive, PullUp, 0, 0, IoRestrictionInputOnly,
++ "\\_SB.PCI0.LPC", 0, ResourceConsumer) {0}
++ GpioIo (Exclusive, PullUp, 0, 0, IoRestrictionInputOnly,
++ "\\_SB.PCI0.LPC", 0, ResourceConsumer) {1}
++ ...
++ })
++
++ // "pseudo" devices declared under the parent device
++ Device (BTN0) {
++ Name (_DSD, Package () {
++ ToUUID("daffd814-6eba-4d8c-8a91-bc9bbf4aa301"),
++ Package () {
++ Package () {"label", "minnow_btn0"}
++ Package () {"gpios", Package () {^KEYS, 0, 0, 1}}
++ }
++ })
++ }
++
++ Device (BTN1) {
++ Name (_DSD, Package () {
++ ToUUID("daffd814-6eba-4d8c-8a91-bc9bbf4aa301"),
++ Package () {
++ Package () {"label", "minnow_btn1"}
++ Package () {"gpios", Package () {^KEYS, 1, 0, 1}}
++ }
++ })
++ }
++ }
++
++We can extract the above in gpio_keys_polled.c like:
++
++ static int gpio_keys_polled_create_button(struct device *dev, void *child,
++ void *data)
++ {
++ struct button_data *bdata = data;
++ const char *label = NULL;
++
++ /*
++ * We need to use device_child_ variant here to access
++ * properties of the child.
++ */
++ device_child_property_read_string(dev, child, "label", &label);
++ /* and so on */
++ }
++
++ static void gpio_keys_polled_probe(struct device *dev)
++ {
++ /* Properties for the KEYS device itself */
++ device_property_read(dev, ...);
++
++ /*
++ * Iterate over button devices and extract their
++ * firmware configuration.
++ */
++ ret = device_for_each_child_node(dev, gpio_keys_polled_create_button,
++ &bdata);
++ if (ret)
++ /* Handle error */
++ }
++
++Note that you still need proper error handling which is omitted in the
++above example.
++
++4. Existing Device Tree enabled drivers
++---------------------------------------
++At the time of writing this, there are ~250 existing DT enabled drivers.
++Allocating _HID/_CID for each would not be feasible. To make sure that
++those drivers can still be used on ACPI systems, we provide an
++alternative way to get these matched.
++
++There is a special _HID "PRP0001" which means that use the DT bindings
++for matching this device to a driver. The driver needs to have
++.of_match_table filled in even when !CONFIG_OF.
++
++An example device would be leds that can be controlled via GPIOs. This
++is represented as "leds-gpio" device and looks like this in the ACPI
++namespace:
++
++ Device (LEDS)
++ {
++ Name (_DSD, Package () {
++ ToUUID("daffd814-6eba-4d8c-8a91-bc9bbf4aa301"),
++ Package () {
++ Package () {"compatible", Package () {"gpio-leds"}},
++ }
++ })
++ ...
++ }
++
++In order to get the existing drivers/leds/leds-gpio.c bound to this
++device, we take advantage of "PRP0001":
++
++ /* Following already exists in the driver */
++ static const struct of_device_id of_gpio_leds_match[] = {
++ { .compatible = "gpio-leds", },
++ {},
++ };
++ MODULE_DEVICE_TABLE(of, of_gpio_leds_match);
++
++ /* This we add to the driver to get it probed */
++ static const struct acpi_device_id acpi_gpio_leds_match[] = {
++ { "PRP0001" }, /* Device Tree shoehorned into ACPI */
++ {},
++ };
++ MODULE_DEVICE_TABLE(acpi, acpi_gpio_leds_match);
++
++ static struct platform_driver gpio_led_driver = {
++ .driver = {
++ /*
++ * No of_match_ptr() here because we want this
++ * table to be visible even when !CONFIG_OF to
++ * match against "compatible" in _DSD.
++ */
++ .of_match_table = of_gpio_leds_match,
++ .acpi_match_table = acpi_gpio_leds_match,
++ },
++ };
++
++Once ACPI core sees "PRP0001" and that the device has "compatible"
++property it will do the match using .of_match_table instead.
++
++It is preferred that new devices get a proper _HID allocated for them
++instead of inventing new DT "compatible" devices.
diff --git a/Documentation/arm64/arm-acpi.txt b/Documentation/arm64/arm-acpi.txt
new file mode 100644
index 0000000..b7dc826
@@ -1554,71 +1824,8 @@ index 0000000..b7dc826
+standards from UEFI ASWG. If there are features missing from ACPI to make it
+function on a platform, ECRs should be submitted to ASWG and go through the
+approval process.
-diff --git a/Documentation/devicetree/bindings/pci/xgene-pci.txt b/Documentation/devicetree/bindings/pci/xgene-pci.txt
-new file mode 100644
-index 0000000..1070b06
---- /dev/null
-+++ b/Documentation/devicetree/bindings/pci/xgene-pci.txt
-@@ -0,0 +1,57 @@
-+* AppliedMicro X-Gene PCIe interface
-+
-+Required properties:
-+- device_type: set to "pci"
-+- compatible: should contain "apm,xgene-pcie" to identify the core.
-+- reg: A list of physical base address and length for each set of controller
-+ registers. Must contain an entry for each entry in the reg-names
-+ property.
-+- reg-names: Must include the following entries:
-+ "csr": controller configuration registers.
-+ "cfg": pcie configuration space registers.
-+- #address-cells: set to <3>
-+- #size-cells: set to <2>
-+- ranges: ranges for the outbound memory, I/O regions.
-+- dma-ranges: ranges for the inbound memory regions.
-+- #interrupt-cells: set to <1>
-+- interrupt-map-mask and interrupt-map: standard PCI properties
-+ to define the mapping of the PCIe interface to interrupt
-+ numbers.
-+- clocks: from common clock binding: handle to pci clock.
-+
-+Optional properties:
-+- status: Either "ok" or "disabled".
-+- dma-coherent: Present if dma operations are coherent
-+
-+Example:
-+
-+SoC specific DT Entry:
-+
-+ pcie0: pcie@1f2b0000 {
-+ status = "disabled";
-+ device_type = "pci";
-+ compatible = "apm,xgene-storm-pcie", "apm,xgene-pcie";
-+ #interrupt-cells = <1>;
-+ #size-cells = <2>;
-+ #address-cells = <3>;
-+ reg = < 0x00 0x1f2b0000 0x0 0x00010000 /* Controller registers */
-+ 0xe0 0xd0000000 0x0 0x00040000>; /* PCI config space */
-+ reg-names = "csr", "cfg";
-+ ranges = <0x01000000 0x00 0x00000000 0xe0 0x10000000 0x00 0x00010000 /* io */
-+ 0x02000000 0x00 0x80000000 0xe1 0x80000000 0x00 0x80000000>; /* mem */
-+ dma-ranges = <0x42000000 0x80 0x00000000 0x80 0x00000000 0x00 0x80000000
-+ 0x42000000 0x00 0x00000000 0x00 0x00000000 0x80 0x00000000>;
-+ interrupt-map-mask = <0x0 0x0 0x0 0x7>;
-+ interrupt-map = <0x0 0x0 0x0 0x1 &gic 0x0 0xc2 0x1
-+ 0x0 0x0 0x0 0x2 &gic 0x0 0xc3 0x1
-+ 0x0 0x0 0x0 0x3 &gic 0x0 0xc4 0x1
-+ 0x0 0x0 0x0 0x4 &gic 0x0 0xc5 0x1>;
-+ dma-coherent;
-+ clocks = <&pcie0clk 0>;
-+ };
-+
-+
-+Board specific DT Entry:
-+ &pcie0 {
-+ status = "ok";
-+ };
diff --git a/Documentation/kernel-parameters.txt b/Documentation/kernel-parameters.txt
-index 10d51c2..9464c6d 100644
+index 7dbe5ec..bb69b63 100644
--- a/Documentation/kernel-parameters.txt
+++ b/Documentation/kernel-parameters.txt
@@ -165,7 +165,7 @@ multipliers 'Kilo', 'Mega', and 'Giga', equalling 2^10, 2^20, and 2^30
@@ -1638,205 +1845,8 @@ index 10d51c2..9464c6d 100644
See also Documentation/power/runtime_pm.txt, pci=noacpi
-diff --git a/MAINTAINERS b/MAINTAINERS
-index 3705430..f6b49e4 100644
---- a/MAINTAINERS
-+++ b/MAINTAINERS
-@@ -6940,6 +6940,14 @@ L: linux-pci@vger.kernel.org
- S: Maintained
- F: drivers/pci/host/*spear*
-
-+PCI DRIVER FOR APPLIEDMICRO XGENE
-+M: Tanmay Inamdar <tinamdar@apm.com>
-+L: linux-pci@vger.kernel.org
-+L: linux-arm-kernel@lists.infradead.org
-+S: Maintained
-+F: Documentation/devicetree/bindings/pci/xgene-pci.txt
-+F: drivers/pci/host/pci-xgene.c
-+
- PCMCIA SUBSYSTEM
- P: Linux PCMCIA Team
- L: linux-pcmcia@lists.infradead.org
-diff --git a/arch/arm/include/asm/io.h b/arch/arm/include/asm/io.h
-index 3d23418..22b7529 100644
---- a/arch/arm/include/asm/io.h
-+++ b/arch/arm/include/asm/io.h
-@@ -178,6 +178,7 @@ static inline void __iomem *__typesafe_io(unsigned long addr)
-
- /* PCI fixed i/o mapping */
- #define PCI_IO_VIRT_BASE 0xfee00000
-+#define PCI_IOBASE PCI_IO_VIRT_BASE
-
- #if defined(CONFIG_PCI)
- void pci_ioremap_set_mem_type(int mem_type);
-diff --git a/arch/arm/include/asm/kvm_mmu.h b/arch/arm/include/asm/kvm_mmu.h
-index 5cc0b0f..03a08bb 100644
---- a/arch/arm/include/asm/kvm_mmu.h
-+++ b/arch/arm/include/asm/kvm_mmu.h
-@@ -21,6 +21,7 @@
-
- #include <asm/memory.h>
- #include <asm/page.h>
-+#include <asm/kvm_arm.h>
-
- /*
- * We directly use the kernel VA for the HYP, as we can directly share
-@@ -178,6 +179,18 @@ static inline void coherent_cache_guest_page(struct kvm_vcpu *vcpu, hva_t hva,
-
- void stage2_flush_vm(struct kvm *kvm);
-
-+static inline int kvm_get_phys_addr_shift(void)
-+{
-+ return KVM_PHYS_SHIFT;
-+}
-+
-+
-+static inline u32 get_vttbr_baddr_mask(void)
-+{
-+ return VTTBR_BADDR_MASK;
-+}
-+
-+
- #endif /* !__ASSEMBLY__ */
-
- #endif /* __ARM_KVM_MMU_H__ */
-diff --git a/arch/arm/kvm/arm.c b/arch/arm/kvm/arm.c
-index a99e0cd..d0fca8f 100644
---- a/arch/arm/kvm/arm.c
-+++ b/arch/arm/kvm/arm.c
-@@ -37,6 +37,7 @@
- #include <asm/mman.h>
- #include <asm/tlbflush.h>
- #include <asm/cacheflush.h>
-+#include <asm/cputype.h>
- #include <asm/virt.h>
- #include <asm/kvm_arm.h>
- #include <asm/kvm_asm.h>
-@@ -61,6 +62,12 @@ static atomic64_t kvm_vmid_gen = ATOMIC64_INIT(1);
- static u8 kvm_next_vmid;
- static DEFINE_SPINLOCK(kvm_vmid_lock);
-
-+#ifdef CONFIG_ARM64
-+static u64 vttbr_baddr_mask;
-+#else
-+static u32 vttbr_baddr_mask;
-+#endif
-+
- static bool vgic_present;
-
- static void kvm_arm_set_running_vcpu(struct kvm_vcpu *vcpu)
-@@ -429,8 +436,14 @@ static void update_vttbr(struct kvm *kvm)
- /* update vttbr to be used with the new vmid */
- pgd_phys = virt_to_phys(kvm->arch.pgd);
- vmid = ((u64)(kvm->arch.vmid) << VTTBR_VMID_SHIFT) & VTTBR_VMID_MASK;
-- kvm->arch.vttbr = pgd_phys & VTTBR_BADDR_MASK;
-- kvm->arch.vttbr |= vmid;
-+
-+ /*
-+ * If the VTTBR isn't aligned there is something wrong with the system
-+ * or kernel.
-+ */
-+ BUG_ON(pgd_phys & ~vttbr_baddr_mask);
-+
-+ kvm->arch.vttbr = pgd_phys | vmid;
-
- spin_unlock(&kvm_vmid_lock);
- }
-@@ -1015,6 +1028,12 @@ int kvm_arch_init(void *opaque)
- }
- }
-
-+ vttbr_baddr_mask = get_vttbr_baddr_mask();
-+ if (vttbr_baddr_mask == ~0) {
-+ kvm_err("Cannot set vttbr_baddr_mask\n");
-+ return -EINVAL;
-+ }
-+
- cpu_notifier_register_begin();
-
- err = init_hyp_mode();
-diff --git a/arch/arm/mach-integrator/pci_v3.c b/arch/arm/mach-integrator/pci_v3.c
-index 05e1f73..c186a17 100644
---- a/arch/arm/mach-integrator/pci_v3.c
-+++ b/arch/arm/mach-integrator/pci_v3.c
-@@ -660,6 +660,7 @@ static void __init pci_v3_preinit(void)
- {
- unsigned long flags;
- unsigned int temp;
-+ phys_addr_t io_address = pci_pio_to_address(io_mem.start);
-
- pcibios_min_mem = 0x00100000;
-
-@@ -701,7 +702,7 @@ static void __init pci_v3_preinit(void)
- /*
- * Setup window 2 - PCI IO
- */
-- v3_writel(V3_LB_BASE2, v3_addr_to_lb_base2(io_mem.start) |
-+ v3_writel(V3_LB_BASE2, v3_addr_to_lb_base2(io_address) |
- V3_LB_BASE_ENABLE);
- v3_writew(V3_LB_MAP2, v3_addr_to_lb_map2(0));
-
-@@ -742,6 +743,7 @@ static void __init pci_v3_preinit(void)
- static void __init pci_v3_postinit(void)
- {
- unsigned int pci_cmd;
-+ phys_addr_t io_address = pci_pio_to_address(io_mem.start);
-
- pci_cmd = PCI_COMMAND_MEMORY |
- PCI_COMMAND_MASTER | PCI_COMMAND_INVALIDATE;
-@@ -758,7 +760,7 @@ static void __init pci_v3_postinit(void)
- "interrupt: %d\n", ret);
- #endif
-
-- register_isa_ports(non_mem.start, io_mem.start, 0);
-+ register_isa_ports(non_mem.start, io_address, 0);
- }
-
- /*
-@@ -867,33 +869,32 @@ static int __init pci_v3_probe(struct platform_device *pdev)
-
- for_each_of_pci_range(&parser, &range) {
- if (!range.flags) {
-- of_pci_range_to_resource(&range, np, &conf_mem);
-+ ret = of_pci_range_to_resource(&range, np, &conf_mem);
- conf_mem.name = "PCIv3 config";
- }
- if (range.flags & IORESOURCE_IO) {
-- of_pci_range_to_resource(&range, np, &io_mem);
-+ ret = of_pci_range_to_resource(&range, np, &io_mem);
- io_mem.name = "PCIv3 I/O";
- }
- if ((range.flags & IORESOURCE_MEM) &&
- !(range.flags & IORESOURCE_PREFETCH)) {
- non_mem_pci = range.pci_addr;
- non_mem_pci_sz = range.size;
-- of_pci_range_to_resource(&range, np, &non_mem);
-+ ret = of_pci_range_to_resource(&range, np, &non_mem);
- non_mem.name = "PCIv3 non-prefetched mem";
- }
- if ((range.flags & IORESOURCE_MEM) &&
- (range.flags & IORESOURCE_PREFETCH)) {
- pre_mem_pci = range.pci_addr;
- pre_mem_pci_sz = range.size;
-- of_pci_range_to_resource(&range, np, &pre_mem);
-+ ret = of_pci_range_to_resource(&range, np, &pre_mem);
- pre_mem.name = "PCIv3 prefetched mem";
- }
-- }
-
-- if (!conf_mem.start || !io_mem.start ||
-- !non_mem.start || !pre_mem.start) {
-- dev_err(&pdev->dev, "missing ranges in device node\n");
-- return -EINVAL;
-+ if (ret < 0) {
-+ dev_err(&pdev->dev, "missing ranges in device node\n");
-+ return ret;
-+ }
- }
-
- pci_v3.map_irq = of_irq_parse_and_map_pci;
diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig
-index fd4e81a..e57b91a 100644
+index ac9afde..14423f3 100644
--- a/arch/arm64/Kconfig
+++ b/arch/arm64/Kconfig
@@ -1,5 +1,6 @@
@@ -1846,43 +1856,7 @@ index fd4e81a..e57b91a 100644
select ARCH_HAS_ATOMIC64_DEC_IF_POSITIVE
select ARCH_HAS_SG_CHAIN
select ARCH_HAS_TICK_BROADCAST if GENERIC_CLOCKEVENTS_BROADCAST
-@@ -81,7 +82,7 @@ config MMU
- def_bool y
-
- config NO_IOPORT_MAP
-- def_bool y
-+ def_bool y if !PCI
-
- config STACKTRACE_SUPPORT
- def_bool y
-@@ -156,6 +157,26 @@ menu "Bus support"
- config ARM_AMBA
- bool
-
-+config PCI
-+ bool "PCI support"
-+ help
-+ This feature enables support for PCI bus system. If you say Y
-+ here, the kernel will include drivers and infrastructure code
-+ to support PCI bus devices.
-+
-+config PCI_DOMAINS
-+ def_bool PCI
-+
-+config PCI_DOMAINS_GENERIC
-+ def_bool PCI
-+
-+config PCI_SYSCALL
-+ def_bool PCI
-+
-+source "drivers/pci/Kconfig"
-+source "drivers/pci/pcie/Kconfig"
-+source "drivers/pci/hotplug/Kconfig"
-+
- endmenu
-
- menu "Kernel Features"
-@@ -235,6 +256,9 @@ config SMP
+@@ -267,6 +268,9 @@ config SMP
If you don't know what to do here, say N.
@@ -1892,7 +1866,7 @@ index fd4e81a..e57b91a 100644
config SCHED_MC
bool "Multi-core scheduler support"
depends on SMP
-@@ -421,6 +445,8 @@ source "drivers/Kconfig"
+@@ -453,6 +457,8 @@ source "drivers/Kconfig"
source "drivers/firmware/Kconfig"
@@ -1902,10 +1876,10 @@ index fd4e81a..e57b91a 100644
source "arch/arm64/kvm/Kconfig"
diff --git a/arch/arm64/Makefile b/arch/arm64/Makefile
-index 2df5e5d..bddd4e3 100644
+index 20901ff..983d72a 100644
--- a/arch/arm64/Makefile
+++ b/arch/arm64/Makefile
-@@ -50,6 +50,7 @@ core-y += arch/arm64/kernel/ arch/arm64/mm/
+@@ -49,6 +49,7 @@ core-$(CONFIG_NET) += arch/arm64/net/
core-$(CONFIG_KVM) += arch/arm64/kvm/
core-$(CONFIG_XEN) += arch/arm64/xen/
core-$(CONFIG_CRYPTO) += arch/arm64/crypto/
@@ -1913,213 +1887,6 @@ index 2df5e5d..bddd4e3 100644
libs-y := arch/arm64/lib/ $(libs-y)
libs-y += $(LIBGCC)
libs-$(CONFIG_EFI_STUB) += drivers/firmware/efi/libstub/
-diff --git a/arch/arm64/boot/dts/apm-mustang.dts b/arch/arm64/boot/dts/apm-mustang.dts
-index b2f5622..f649000 100644
---- a/arch/arm64/boot/dts/apm-mustang.dts
-+++ b/arch/arm64/boot/dts/apm-mustang.dts
-@@ -25,6 +25,14 @@
- };
- };
-
-+&pcie0clk {
-+ status = "ok";
-+};
-+
-+&pcie0 {
-+ status = "ok";
-+};
-+
- &serial0 {
- status = "ok";
- };
-diff --git a/arch/arm64/boot/dts/apm-storm.dtsi b/arch/arm64/boot/dts/apm-storm.dtsi
-index c0aceef..403197a 100644
---- a/arch/arm64/boot/dts/apm-storm.dtsi
-+++ b/arch/arm64/boot/dts/apm-storm.dtsi
-@@ -269,6 +269,171 @@
- enable-mask = <0x2>;
- clock-output-names = "rtcclk";
- };
-+
-+ pcie0clk: pcie0clk@1f2bc000 {
-+ status = "disabled";
-+ compatible = "apm,xgene-device-clock";
-+ #clock-cells = <1>;
-+ clocks = <&socplldiv2 0>;
-+ reg = <0x0 0x1f2bc000 0x0 0x1000>;
-+ reg-names = "csr-reg";
-+ clock-output-names = "pcie0clk";
-+ };
-+
-+ pcie1clk: pcie1clk@1f2cc000 {
-+ status = "disabled";
-+ compatible = "apm,xgene-device-clock";
-+ #clock-cells = <1>;
-+ clocks = <&socplldiv2 0>;
-+ reg = <0x0 0x1f2cc000 0x0 0x1000>;
-+ reg-names = "csr-reg";
-+ clock-output-names = "pcie1clk";
-+ };
-+
-+ pcie2clk: pcie2clk@1f2dc000 {
-+ status = "disabled";
-+ compatible = "apm,xgene-device-clock";
-+ #clock-cells = <1>;
-+ clocks = <&socplldiv2 0>;
-+ reg = <0x0 0x1f2dc000 0x0 0x1000>;
-+ reg-names = "csr-reg";
-+ clock-output-names = "pcie2clk";
-+ };
-+
-+ pcie3clk: pcie3clk@1f50c000 {
-+ status = "disabled";
-+ compatible = "apm,xgene-device-clock";
-+ #clock-cells = <1>;
-+ clocks = <&socplldiv2 0>;
-+ reg = <0x0 0x1f50c000 0x0 0x1000>;
-+ reg-names = "csr-reg";
-+ clock-output-names = "pcie3clk";
-+ };
-+
-+ pcie4clk: pcie4clk@1f51c000 {
-+ status = "disabled";
-+ compatible = "apm,xgene-device-clock";
-+ #clock-cells = <1>;
-+ clocks = <&socplldiv2 0>;
-+ reg = <0x0 0x1f51c000 0x0 0x1000>;
-+ reg-names = "csr-reg";
-+ clock-output-names = "pcie4clk";
-+ };
-+ };
-+
-+ pcie0: pcie@1f2b0000 {
-+ status = "disabled";
-+ device_type = "pci";
-+ compatible = "apm,xgene-storm-pcie", "apm,xgene-pcie";
-+ #interrupt-cells = <1>;
-+ #size-cells = <2>;
-+ #address-cells = <3>;
-+ reg = < 0x00 0x1f2b0000 0x0 0x00010000 /* Controller registers */
-+ 0xe0 0xd0000000 0x0 0x00040000>; /* PCI config space */
-+ reg-names = "csr", "cfg";
-+ ranges = <0x01000000 0x00 0x00000000 0xe0 0x10000000 0x00 0x00010000 /* io */
-+ 0x02000000 0x00 0x80000000 0xe1 0x80000000 0x00 0x80000000>; /* mem */
-+ dma-ranges = <0x42000000 0x80 0x00000000 0x80 0x00000000 0x00 0x80000000
-+ 0x42000000 0x00 0x00000000 0x00 0x00000000 0x80 0x00000000>;
-+ interrupt-map-mask = <0x0 0x0 0x0 0x7>;
-+ interrupt-map = <0x0 0x0 0x0 0x1 &gic 0x0 0xc2 0x1
-+ 0x0 0x0 0x0 0x2 &gic 0x0 0xc3 0x1
-+ 0x0 0x0 0x0 0x3 &gic 0x0 0xc4 0x1
-+ 0x0 0x0 0x0 0x4 &gic 0x0 0xc5 0x1>;
-+ dma-coherent;
-+ clocks = <&pcie0clk 0>;
-+ };
-+
-+ pcie1: pcie@1f2c0000 {
-+ status = "disabled";
-+ device_type = "pci";
-+ compatible = "apm,xgene-storm-pcie", "apm,xgene-pcie";
-+ #interrupt-cells = <1>;
-+ #size-cells = <2>;
-+ #address-cells = <3>;
-+ reg = < 0x00 0x1f2c0000 0x0 0x00010000 /* Controller registers */
-+ 0xd0 0xd0000000 0x0 0x00040000>; /* PCI config space */
-+ reg-names = "csr", "cfg";
-+ ranges = <0x01000000 0x0 0x00000000 0xd0 0x10000000 0x00 0x00010000 /* io */
-+ 0x02000000 0x0 0x80000000 0xd1 0x80000000 0x00 0x80000000>; /* mem */
-+ dma-ranges = <0x42000000 0x80 0x00000000 0x80 0x00000000 0x00 0x80000000
-+ 0x42000000 0x00 0x00000000 0x00 0x00000000 0x80 0x00000000>;
-+ interrupt-map-mask = <0x0 0x0 0x0 0x7>;
-+ interrupt-map = <0x0 0x0 0x0 0x1 &gic 0x0 0xc8 0x1
-+ 0x0 0x0 0x0 0x2 &gic 0x0 0xc9 0x1
-+ 0x0 0x0 0x0 0x3 &gic 0x0 0xca 0x1
-+ 0x0 0x0 0x0 0x4 &gic 0x0 0xcb 0x1>;
-+ dma-coherent;
-+ clocks = <&pcie1clk 0>;
-+ };
-+
-+ pcie2: pcie@1f2d0000 {
-+ status = "disabled";
-+ device_type = "pci";
-+ compatible = "apm,xgene-storm-pcie", "apm,xgene-pcie";
-+ #interrupt-cells = <1>;
-+ #size-cells = <2>;
-+ #address-cells = <3>;
-+ reg = < 0x00 0x1f2d0000 0x0 0x00010000 /* Controller registers */
-+ 0x90 0xd0000000 0x0 0x00040000>; /* PCI config space */
-+ reg-names = "csr", "cfg";
-+ ranges = <0x01000000 0x0 0x00000000 0x90 0x10000000 0x0 0x00010000 /* io */
-+ 0x02000000 0x0 0x80000000 0x91 0x80000000 0x0 0x80000000>; /* mem */
-+ dma-ranges = <0x42000000 0x80 0x00000000 0x80 0x00000000 0x00 0x80000000
-+ 0x42000000 0x00 0x00000000 0x00 0x00000000 0x80 0x00000000>;
-+ interrupt-map-mask = <0x0 0x0 0x0 0x7>;
-+ interrupt-map = <0x0 0x0 0x0 0x1 &gic 0x0 0xce 0x1
-+ 0x0 0x0 0x0 0x2 &gic 0x0 0xcf 0x1
-+ 0x0 0x0 0x0 0x3 &gic 0x0 0xd0 0x1
-+ 0x0 0x0 0x0 0x4 &gic 0x0 0xd1 0x1>;
-+ dma-coherent;
-+ clocks = <&pcie2clk 0>;
-+ };
-+
-+ pcie3: pcie@1f500000 {
-+ status = "disabled";
-+ device_type = "pci";
-+ compatible = "apm,xgene-storm-pcie", "apm,xgene-pcie";
-+ #interrupt-cells = <1>;
-+ #size-cells = <2>;
-+ #address-cells = <3>;
-+ reg = < 0x00 0x1f500000 0x0 0x00010000 /* Controller registers */
-+ 0xa0 0xd0000000 0x0 0x00040000>; /* PCI config space */
-+ reg-names = "csr", "cfg";
-+ ranges = <0x01000000 0x0 0x00000000 0xa0 0x10000000 0x0 0x00010000 /* io */
-+ 0x02000000 0x0 0x80000000 0xa1 0x80000000 0x0 0x80000000>; /* mem */
-+ dma-ranges = <0x42000000 0x80 0x00000000 0x80 0x00000000 0x00 0x80000000
-+ 0x42000000 0x00 0x00000000 0x00 0x00000000 0x80 0x00000000>;
-+ interrupt-map-mask = <0x0 0x0 0x0 0x7>;
-+ interrupt-map = <0x0 0x0 0x0 0x1 &gic 0x0 0xd4 0x1
-+ 0x0 0x0 0x0 0x2 &gic 0x0 0xd5 0x1
-+ 0x0 0x0 0x0 0x3 &gic 0x0 0xd6 0x1
-+ 0x0 0x0 0x0 0x4 &gic 0x0 0xd7 0x1>;
-+ dma-coherent;
-+ clocks = <&pcie3clk 0>;
-+ };
-+
-+ pcie4: pcie@1f510000 {
-+ status = "disabled";
-+ device_type = "pci";
-+ compatible = "apm,xgene-storm-pcie", "apm,xgene-pcie";
-+ #interrupt-cells = <1>;
-+ #size-cells = <2>;
-+ #address-cells = <3>;
-+ reg = < 0x00 0x1f510000 0x0 0x00010000 /* Controller registers */
-+ 0xc0 0xd0000000 0x0 0x00200000>; /* PCI config space */
-+ reg-names = "csr", "cfg";
-+ ranges = <0x01000000 0x0 0x00000000 0xc0 0x10000000 0x0 0x00010000 /* io */
-+ 0x02000000 0x0 0x80000000 0xc1 0x80000000 0x0 0x80000000>; /* mem */
-+ dma-ranges = <0x42000000 0x80 0x00000000 0x80 0x00000000 0x00 0x80000000
-+ 0x42000000 0x00 0x00000000 0x00 0x00000000 0x80 0x00000000>;
-+ interrupt-map-mask = <0x0 0x0 0x0 0x7>;
-+ interrupt-map = <0x0 0x0 0x0 0x1 &gic 0x0 0xda 0x1
-+ 0x0 0x0 0x0 0x2 &gic 0x0 0xdb 0x1
-+ 0x0 0x0 0x0 0x3 &gic 0x0 0xdc 0x1
-+ 0x0 0x0 0x0 0x4 &gic 0x0 0xdd 0x1>;
-+ dma-coherent;
-+ clocks = <&pcie4clk 0>;
- };
-
- serial0: serial@1c020000 {
-diff --git a/arch/arm64/include/asm/Kbuild b/arch/arm64/include/asm/Kbuild
-index 0b3fcf8..07cb417 100644
---- a/arch/arm64/include/asm/Kbuild
-+++ b/arch/arm64/include/asm/Kbuild
-@@ -29,6 +29,7 @@ generic-y += mman.h
- generic-y += msgbuf.h
- generic-y += mutex.h
- generic-y += pci.h
-+generic-y += pci-bridge.h
- generic-y += poll.h
- generic-y += preempt.h
- generic-y += resource.h
diff --git a/arch/arm64/include/asm/acenv.h b/arch/arm64/include/asm/acenv.h
new file mode 100644
index 0000000..b49166f
@@ -2250,16 +2017,16 @@ index 0000000..7f6cd91
+
+#endif /*_ASM_ACPI_H*/
diff --git a/arch/arm64/include/asm/cpu_ops.h b/arch/arm64/include/asm/cpu_ops.h
-index d7b4b38..d149580 100644
+index 6f8e2ef..978f567 100644
--- a/arch/arm64/include/asm/cpu_ops.h
+++ b/arch/arm64/include/asm/cpu_ops.h
-@@ -61,6 +61,7 @@ struct cpu_operations {
+@@ -64,6 +64,7 @@ struct cpu_operations {
};
extern const struct cpu_operations *cpu_ops[NR_CPUS];
+const struct cpu_operations *cpu_get_ops(const char *name);
- extern int __init cpu_read_ops(struct device_node *dn, int cpu);
- extern void __init cpu_read_bootcpu_ops(void);
+ int __init cpu_read_ops(struct device_node *dn, int cpu);
+ void __init cpu_read_bootcpu_ops(void);
diff --git a/arch/arm64/include/asm/elf.h b/arch/arm64/include/asm/elf.h
index 01d3aab..8186df6 100644
@@ -2275,222 +2042,6 @@ index 01d3aab..8186df6 100644
#define CORE_DUMP_USE_REGSET
#define ELF_EXEC_PAGESIZE PAGE_SIZE
-diff --git a/arch/arm64/include/asm/io.h b/arch/arm64/include/asm/io.h
-index e0ecdcf..f998d90 100644
---- a/arch/arm64/include/asm/io.h
-+++ b/arch/arm64/include/asm/io.h
-@@ -121,7 +121,8 @@ static inline u64 __raw_readq(const volatile void __iomem *addr)
- /*
- * I/O port access primitives.
- */
--#define IO_SPACE_LIMIT 0xffff
-+#define arch_has_dev_port() (1)
-+#define IO_SPACE_LIMIT (SZ_32M - 1)
- #define PCI_IOBASE ((void __iomem *)(MODULES_VADDR - SZ_32M))
-
- static inline u8 inb(unsigned long addr)
-diff --git a/arch/arm64/include/asm/kvm_arm.h b/arch/arm64/include/asm/kvm_arm.h
-index cc83520..ff4a4fa 100644
---- a/arch/arm64/include/asm/kvm_arm.h
-+++ b/arch/arm64/include/asm/kvm_arm.h
-@@ -95,7 +95,6 @@
- /* TCR_EL2 Registers bits */
- #define TCR_EL2_TBI (1 << 20)
- #define TCR_EL2_PS (7 << 16)
--#define TCR_EL2_PS_40B (2 << 16)
- #define TCR_EL2_TG0 (1 << 14)
- #define TCR_EL2_SH0 (3 << 12)
- #define TCR_EL2_ORGN0 (3 << 10)
-@@ -104,8 +103,6 @@
- #define TCR_EL2_MASK (TCR_EL2_TG0 | TCR_EL2_SH0 | \
- TCR_EL2_ORGN0 | TCR_EL2_IRGN0 | TCR_EL2_T0SZ)
-
--#define TCR_EL2_FLAGS (TCR_EL2_PS_40B)
--
- /* VTCR_EL2 Registers bits */
- #define VTCR_EL2_PS_MASK (7 << 16)
- #define VTCR_EL2_TG0_MASK (1 << 14)
-@@ -120,36 +117,28 @@
- #define VTCR_EL2_SL0_MASK (3 << 6)
- #define VTCR_EL2_SL0_LVL1 (1 << 6)
- #define VTCR_EL2_T0SZ_MASK 0x3f
--#define VTCR_EL2_T0SZ_40B 24
-+#define VTCR_EL2_T0SZ(bits) (64 - (bits))
-
- #ifdef CONFIG_ARM64_64K_PAGES
- /*
- * Stage2 translation configuration:
-- * 40bits output (PS = 2)
-- * 40bits input (T0SZ = 24)
- * 64kB pages (TG0 = 1)
- * 2 level page tables (SL = 1)
- */
- #define VTCR_EL2_FLAGS (VTCR_EL2_TG0_64K | VTCR_EL2_SH0_INNER | \
- VTCR_EL2_ORGN0_WBWA | VTCR_EL2_IRGN0_WBWA | \
-- VTCR_EL2_SL0_LVL1 | VTCR_EL2_T0SZ_40B)
--#define VTTBR_X (38 - VTCR_EL2_T0SZ_40B)
-+ VTCR_EL2_SL0_LVL1)
- #else
- /*
- * Stage2 translation configuration:
-- * 40bits output (PS = 2)
-- * 40bits input (T0SZ = 24)
- * 4kB pages (TG0 = 0)
- * 3 level page tables (SL = 1)
- */
- #define VTCR_EL2_FLAGS (VTCR_EL2_TG0_4K | VTCR_EL2_SH0_INNER | \
- VTCR_EL2_ORGN0_WBWA | VTCR_EL2_IRGN0_WBWA | \
-- VTCR_EL2_SL0_LVL1 | VTCR_EL2_T0SZ_40B)
--#define VTTBR_X (37 - VTCR_EL2_T0SZ_40B)
-+ VTCR_EL2_SL0_LVL1)
- #endif
-
--#define VTTBR_BADDR_SHIFT (VTTBR_X - 1)
--#define VTTBR_BADDR_MASK (((1LLU << (40 - VTTBR_X)) - 1) << VTTBR_BADDR_SHIFT)
- #define VTTBR_VMID_SHIFT (48LLU)
- #define VTTBR_VMID_MASK (0xffLLU << VTTBR_VMID_SHIFT)
-
-diff --git a/arch/arm64/include/asm/kvm_mmu.h b/arch/arm64/include/asm/kvm_mmu.h
-index 8e138c7..1c70b2f 100644
---- a/arch/arm64/include/asm/kvm_mmu.h
-+++ b/arch/arm64/include/asm/kvm_mmu.h
-@@ -167,5 +167,80 @@ static inline void coherent_cache_guest_page(struct kvm_vcpu *vcpu, hva_t hva,
-
- void stage2_flush_vm(struct kvm *kvm);
-
-+/*
-+ * ARMv8 64K architecture limitations:
-+ * 16 <= T0SZ <= 21 is valid under 3 level of translation tables
-+ * 18 <= T0SZ <= 34 is valid under 2 level of translation tables
-+ * 31 <= T0SZ <= 39 is valid under 1 level of transltaion tables
-+ *
-+ * ARMv8 4K architecture limitations:
-+ * 16 <= T0SZ <= 24 is valid under 4 level of translation tables
-+ * 21 <= T0SZ <= 33 is valid under 3 level of translation tables
-+ * 30 <= T0SZ <= 39 is valid under 2 level of translation tables
-+ *
-+ * For 4K pages we only support 3 or 4 level, giving T0SZ a range of 16 to 33.
-+ * For 64K pages we only support 2 or 3 level, giving T0SZ a range of 16 to 34.
-+ *
-+ * See Table D4-23 and Table D4-25 in ARM DDI 0487A.b to figure out
-+ * the origin of the hardcoded values, 38 and 37.
-+ */
-+
-+#ifdef CONFIG_ARM64_64K_PAGES
-+static inline int t0sz_to_vttbr_x(int t0sz)
-+{
-+ if (t0sz < 16 || t0sz > 34) {
-+ kvm_err("Cannot support %d-bit address space\n", 64 - t0sz);
-+ return -EINVAL;
-+ }
-+
-+ return 38 - t0sz;
-+}
-+#else /* 4K pages */
-+static inline int t0sz_to_vttbr_x(int t0sz)
-+{
-+ if (t0sz < 16 || t0sz > 33) {
-+ kvm_err("Cannot support %d-bit address space\n", 64 - t0sz);
-+ return -EINVAL;
-+ }
-+ return 37 - t0sz;
-+}
-+#endif
-+static inline int kvm_get_phys_addr_shift(void)
-+{
-+ int pa_range = read_cpuid(ID_AA64MMFR0_EL1) & 0xf;
-+
-+ switch (pa_range) {
-+ case 0: return 32;
-+ case 1: return 36;
-+ case 2: return 40;
-+ case 3: return 42;
-+ case 4: return 44;
-+ case 5: return 48;
-+ default:
-+ BUG();
-+ return 0;
-+ }
-+}
-+
-+/**
-+ * get_vttbr_baddr_mask - get mask value for vttbr base address
-+ *
-+ * In ARMv8, vttbr_baddr_mask cannot be determined in compile time since the
-+ * stage2 input address size depends on hardware capability. Thus, we first
-+ * need to read ID_AA64MMFR0_EL1.PARange and then set vttbr_baddr_mask with
-+ * consideration of both the granule size and the level of translation tables.
-+ */
-+static inline u64 get_vttbr_baddr_mask(void)
-+{
-+ int t0sz, vttbr_x;
-+
-+ t0sz = VTCR_EL2_T0SZ(kvm_get_phys_addr_shift());
-+ vttbr_x = t0sz_to_vttbr_x(t0sz);
-+ if (vttbr_x < 0)
-+ return ~0;
-+ return GENMASK_ULL(48, (vttbr_x - 1));
-+
-+}
-+
- #endif /* __ASSEMBLY__ */
- #endif /* __ARM64_KVM_MMU_H__ */
-diff --git a/arch/arm64/include/asm/pci.h b/arch/arm64/include/asm/pci.h
-new file mode 100644
-index 0000000..872ba93
---- /dev/null
-+++ b/arch/arm64/include/asm/pci.h
-@@ -0,0 +1,37 @@
-+#ifndef __ASM_PCI_H
-+#define __ASM_PCI_H
-+#ifdef __KERNEL__
-+
-+#include <linux/types.h>
-+#include <linux/slab.h>
-+#include <linux/dma-mapping.h>
-+
-+#include <asm/io.h>
-+#include <asm-generic/pci-bridge.h>
-+#include <asm-generic/pci-dma-compat.h>
-+
-+#define PCIBIOS_MIN_IO 0x1000
-+#define PCIBIOS_MIN_MEM 0
-+
-+/*
-+ * Set to 1 if the kernel should re-assign all PCI bus numbers
-+ */
-+#define pcibios_assign_all_busses() \
-+ (pci_has_flag(PCI_REASSIGN_ALL_BUS))
-+
-+/*
-+ * PCI address space differs from physical memory address space
-+ */
-+#define PCI_DMA_BUS_IS_PHYS (0)
-+
-+extern int isa_dma_bridge_buggy;
-+
-+#ifdef CONFIG_PCI
-+static inline int pci_proc_domain(struct pci_bus *bus)
-+{
-+ return 1;
-+}
-+#endif /* CONFIG_PCI */
-+
-+#endif /* __KERNEL__ */
-+#endif /* __ASM_PCI_H */
-diff --git a/arch/arm64/include/asm/pgtable.h b/arch/arm64/include/asm/pgtable.h
-index ffe1ba0..a968523 100644
---- a/arch/arm64/include/asm/pgtable.h
-+++ b/arch/arm64/include/asm/pgtable.h
-@@ -296,6 +296,8 @@ static inline int has_transparent_hugepage(void)
- __pgprot_modify(prot, PTE_ATTRINDX_MASK, PTE_ATTRINDX(MT_DEVICE_nGnRnE) | PTE_PXN | PTE_UXN)
- #define pgprot_writecombine(prot) \
- __pgprot_modify(prot, PTE_ATTRINDX_MASK, PTE_ATTRINDX(MT_NORMAL_NC) | PTE_PXN | PTE_UXN)
-+#define pgprot_device(prot) \
-+ __pgprot_modify(prot, PTE_ATTRINDX_MASK, PTE_ATTRINDX(MT_DEVICE_nGnRE) | PTE_PXN | PTE_UXN)
- #define __HAVE_PHYS_MEM_ACCESS_PROT
- struct file;
- extern pgprot_t phys_mem_access_prot(struct file *file, unsigned long pfn,
diff --git a/arch/arm64/include/asm/psci.h b/arch/arm64/include/asm/psci.h
index e5312ea..2454bc5 100644
--- a/arch/arm64/include/asm/psci.h
@@ -2505,7 +2056,7 @@ index e5312ea..2454bc5 100644
#endif /* __ASM_PSCI_H */
diff --git a/arch/arm64/include/asm/smp.h b/arch/arm64/include/asm/smp.h
-index a498f2c..2ebbd55 100644
+index 780f82c..3411561 100644
--- a/arch/arm64/include/asm/smp.h
+++ b/arch/arm64/include/asm/smp.h
@@ -39,9 +39,10 @@ extern void show_ipi_list(struct seq_file *p, int prec);
@@ -2521,8 +2072,8 @@ index a498f2c..2ebbd55 100644
/*
* Provide a function to raise an IPI cross call on CPUs in callmap.
-@@ -49,6 +50,11 @@ extern void smp_init_cpus(void);
- extern void set_smp_cross_call(void (*)(const struct cpumask *, unsigned int));
+@@ -51,6 +52,11 @@ extern void set_smp_cross_call(void (*)(const struct cpumask *, unsigned int));
+ extern void (*__smp_cross_call)(const struct cpumask *, unsigned int);
/*
+ * Provide a function to signal a parked secondary CPU.
@@ -2534,7 +2085,7 @@ index a498f2c..2ebbd55 100644
*/
asmlinkage void secondary_start_kernel(void);
diff --git a/arch/arm64/kernel/Makefile b/arch/arm64/kernel/Makefile
-index df7ef87..b0bad2e 100644
+index 5bd029b..f4ba4fe 100644
--- a/arch/arm64/kernel/Makefile
+++ b/arch/arm64/kernel/Makefile
@@ -21,7 +21,8 @@ arm64-obj-$(CONFIG_COMPAT) += sys32.o kuser32.o signal32.o \
@@ -2547,11 +2098,10 @@ index df7ef87..b0bad2e 100644
arm64-obj-$(CONFIG_PERF_EVENTS) += perf_regs.o
arm64-obj-$(CONFIG_HW_PERF_EVENTS) += perf_event.o
arm64-obj-$(CONFIG_HAVE_HW_BREAKPOINT) += hw_breakpoint.o
-@@ -29,6 +30,8 @@ arm64-obj-$(CONFIG_ARM64_CPU_SUSPEND) += sleep.o suspend.o
- arm64-obj-$(CONFIG_JUMP_LABEL) += jump_label.o
+@@ -31,6 +32,7 @@ arm64-obj-$(CONFIG_JUMP_LABEL) += jump_label.o
arm64-obj-$(CONFIG_KGDB) += kgdb.o
arm64-obj-$(CONFIG_EFI) += efi.o efi-stub.o efi-entry.o
-+arm64-obj-$(CONFIG_PCI) += pci.o
+ arm64-obj-$(CONFIG_PCI) += pci.o
+arm64-obj-$(CONFIG_ACPI) += acpi.o
obj-y += $(arm64-obj-y) vdso/
@@ -2989,37 +2539,6 @@ index cce9524..1d90f31 100644
{
const struct cpu_operations **ops = supported_cpu_ops;
-diff --git a/arch/arm64/kernel/efi-stub.c b/arch/arm64/kernel/efi-stub.c
-index 1317fef..d27dd98 100644
---- a/arch/arm64/kernel/efi-stub.c
-+++ b/arch/arm64/kernel/efi-stub.c
-@@ -28,20 +28,16 @@ efi_status_t handle_kernel_image(efi_system_table_t *sys_table,
- kernel_size = _edata - _text;
- if (*image_addr != (dram_base + TEXT_OFFSET)) {
- kernel_memsize = kernel_size + (_end - _edata);
-- status = efi_relocate_kernel(sys_table, image_addr,
-- kernel_size, kernel_memsize,
-- dram_base + TEXT_OFFSET,
-- PAGE_SIZE);
-+ status = efi_low_alloc(sys_table, kernel_memsize + TEXT_OFFSET,
-+ SZ_2M, reserve_addr);
- if (status != EFI_SUCCESS) {
- pr_efi_err(sys_table, "Failed to relocate kernel\n");
- return status;
- }
-- if (*image_addr != (dram_base + TEXT_OFFSET)) {
-- pr_efi_err(sys_table, "Failed to alloc kernel memory\n");
-- efi_free(sys_table, kernel_memsize, *image_addr);
-- return EFI_LOAD_ERROR;
-- }
-- *image_size = kernel_memsize;
-+ memcpy((void *)*reserve_addr + TEXT_OFFSET, (void *)*image_addr,
-+ kernel_size);
-+ *image_addr = *reserve_addr + TEXT_OFFSET;
-+ *reserve_size = kernel_memsize + TEXT_OFFSET;
- }
-
-
diff --git a/arch/arm64/kernel/efi.c b/arch/arm64/kernel/efi.c
index 03aaa99..6c4de44 100644
--- a/arch/arm64/kernel/efi.c
@@ -3039,115 +2558,8 @@ index 03aaa99..6c4de44 100644
+{
+ return pm_power_off == NULL;
+}
-diff --git a/arch/arm64/kernel/head.S b/arch/arm64/kernel/head.S
-index 8730690..0a6e4f9 100644
---- a/arch/arm64/kernel/head.S
-+++ b/arch/arm64/kernel/head.S
-@@ -151,7 +151,7 @@ optional_header:
- .short 0x20b // PE32+ format
- .byte 0x02 // MajorLinkerVersion
- .byte 0x14 // MinorLinkerVersion
-- .long _edata - stext // SizeOfCode
-+ .long _end - stext // SizeOfCode
- .long 0 // SizeOfInitializedData
- .long 0 // SizeOfUninitializedData
- .long efi_stub_entry - efi_head // AddressOfEntryPoint
-@@ -169,7 +169,7 @@ extra_header_fields:
- .short 0 // MinorSubsystemVersion
- .long 0 // Win32VersionValue
-
-- .long _edata - efi_head // SizeOfImage
-+ .long _end - efi_head // SizeOfImage
-
- // Everything before the kernel image is considered part of the header
- .long stext - efi_head // SizeOfHeaders
-@@ -216,7 +216,7 @@ section_table:
- .byte 0
- .byte 0
- .byte 0 // end of 0 padding of section name
-- .long _edata - stext // VirtualSize
-+ .long _end - stext // VirtualSize
- .long stext - efi_head // VirtualAddress
- .long _edata - stext // SizeOfRawData
- .long stext - efi_head // PointerToRawData
-diff --git a/arch/arm64/kernel/pci.c b/arch/arm64/kernel/pci.c
-new file mode 100644
-index 0000000..ce5836c
---- /dev/null
-+++ b/arch/arm64/kernel/pci.c
-@@ -0,0 +1,70 @@
-+/*
-+ * Code borrowed from powerpc/kernel/pci-common.c
-+ *
-+ * Copyright (C) 2003 Anton Blanchard <anton@au.ibm.com>, IBM
-+ * Copyright (C) 2014 ARM Ltd.
-+ *
-+ * This program is free software; you can redistribute it and/or
-+ * modify it under the terms of the GNU General Public License
-+ * version 2 as published by the Free Software Foundation.
-+ *
-+ */
-+
-+#include <linux/init.h>
-+#include <linux/io.h>
-+#include <linux/kernel.h>
-+#include <linux/mm.h>
-+#include <linux/of_pci.h>
-+#include <linux/of_platform.h>
-+#include <linux/slab.h>
-+
-+#include <asm/pci-bridge.h>
-+
-+/*
-+ * Called after each bus is probed, but before its children are examined
-+ */
-+void pcibios_fixup_bus(struct pci_bus *bus)
-+{
-+ /* nothing to do, expected to be removed in the future */
-+}
-+
-+/*
-+ * We don't have to worry about legacy ISA devices, so nothing to do here
-+ */
-+resource_size_t pcibios_align_resource(void *data, const struct resource *res,
-+ resource_size_t size, resource_size_t align)
-+{
-+ return res->start;
-+}
-+
-+/*
-+ * Try to assign the IRQ number from DT when adding a new device
-+ */
-+int pcibios_add_device(struct pci_dev *dev)
-+{
-+ dev->irq = of_irq_parse_and_map_pci(dev, 0, 0);
-+
-+ return 0;
-+}
-+
-+
-+#ifdef CONFIG_PCI_DOMAINS_GENERIC
-+static bool dt_domain_found = false;
-+
-+void pci_bus_assign_domain_nr(struct pci_bus *bus, struct device *parent)
-+{
-+ int domain = of_get_pci_domain_nr(parent->of_node);
-+
-+ if (domain >= 0) {
-+ dt_domain_found = true;
-+ } else if (dt_domain_found == true) {
-+ dev_err(parent, "Node %s is missing \"linux,pci-domain\" property in DT\n",
-+ parent->of_node->full_name);
-+ return;
-+ } else {
-+ domain = pci_get_new_domain_nr();
-+ }
-+
-+ bus->domain_nr = domain;
-+}
-+#endif
diff --git a/arch/arm64/kernel/process.c b/arch/arm64/kernel/process.c
-index 29d4869..c0427bc 100644
+index c3065db..99edd1f 100644
--- a/arch/arm64/kernel/process.c
+++ b/arch/arm64/kernel/process.c
@@ -43,6 +43,7 @@
@@ -3158,8 +2570,8 @@ index 29d4869..c0427bc 100644
#include <asm/compat.h>
#include <asm/cacheflush.h>
-@@ -182,6 +183,11 @@ void machine_restart(char *cmd)
- arm_pm_restart(reboot_mode, cmd);
+@@ -157,6 +158,11 @@ void machine_restart(char *cmd)
+ do_kernel_restart(cmd);
/*
+ * If all else fails, try EFI
@@ -3171,7 +2583,7 @@ index 29d4869..c0427bc 100644
*/
printk("Reboot failed -- System halted\n");
diff --git a/arch/arm64/kernel/psci.c b/arch/arm64/kernel/psci.c
-index 5539547..15ba470 100644
+index 866c1c8..f8a981e 100644
--- a/arch/arm64/kernel/psci.c
+++ b/arch/arm64/kernel/psci.c
@@ -15,6 +15,7 @@
@@ -3182,15 +2594,15 @@ index 5539547..15ba470 100644
#include <linux/init.h>
#include <linux/of.h>
#include <linux/smp.h>
-@@ -23,6 +24,7 @@
- #include <linux/delay.h>
+@@ -24,6 +25,7 @@
+ #include <linux/slab.h>
#include <uapi/linux/psci.h>
+#include <asm/acpi.h>
#include <asm/compiler.h>
#include <asm/cpu_ops.h>
#include <asm/errno.h>
-@@ -231,6 +233,33 @@ static void psci_sys_poweroff(void)
+@@ -304,6 +306,33 @@ static void psci_sys_poweroff(void)
invoke_psci_fn(PSCI_0_2_FN_SYSTEM_OFF, 0, 0, 0);
}
@@ -3224,7 +2636,7 @@ index 5539547..15ba470 100644
/*
* PSCI Function IDs for v0.2+ are well defined so use
* standard values.
-@@ -264,29 +293,7 @@ static int __init psci_0_2_init(struct device_node *np)
+@@ -337,29 +366,7 @@ static int __init psci_0_2_init(struct device_node *np)
}
}
@@ -3255,7 +2667,7 @@ index 5539547..15ba470 100644
out_put_node:
of_node_put(np);
-@@ -339,7 +346,7 @@ static const struct of_device_id psci_of_match[] __initconst = {
+@@ -412,7 +419,7 @@ static const struct of_device_id psci_of_match[] __initconst = {
{},
};
@@ -3264,7 +2676,7 @@ index 5539547..15ba470 100644
{
struct device_node *np;
const struct of_device_id *matched_np;
-@@ -354,6 +361,29 @@ int __init psci_init(void)
+@@ -427,6 +434,29 @@ int __init psci_init(void)
return init_fn(np);
}
@@ -3295,7 +2707,7 @@ index 5539547..15ba470 100644
static int __init cpu_psci_cpu_init(struct device_node *dn, unsigned int cpu)
diff --git a/arch/arm64/kernel/setup.c b/arch/arm64/kernel/setup.c
-index edb146d..a793a20 100644
+index 2437196..c1144a1 100644
--- a/arch/arm64/kernel/setup.c
+++ b/arch/arm64/kernel/setup.c
@@ -43,6 +43,7 @@
@@ -3317,9 +2729,9 @@ index edb146d..a793a20 100644
unsigned int processor_id;
EXPORT_SYMBOL(processor_id);
-@@ -385,22 +390,34 @@ void __init setup_arch(char **cmdline_p)
-
- parse_early_param();
+@@ -386,22 +391,34 @@ void __init setup_arch(char **cmdline_p)
+ */
+ local_async_enable();
+ if (acpi_disabled)
+ disable_acpi();
@@ -3358,7 +2770,7 @@ index edb146d..a793a20 100644
smp_build_mpidr_hash();
#endif
-@@ -413,6 +430,19 @@ void __init setup_arch(char **cmdline_p)
+@@ -414,6 +431,19 @@ void __init setup_arch(char **cmdline_p)
#endif
}
@@ -3378,7 +2790,7 @@ index edb146d..a793a20 100644
static int __init arm64_device_init(void)
{
of_platform_populate(NULL, of_default_bus_match_table, NULL, NULL);
-@@ -505,3 +535,25 @@ const struct seq_operations cpuinfo_op = {
+@@ -506,3 +536,25 @@ const struct seq_operations cpuinfo_op = {
.stop = c_stop,
.show = c_show
};
@@ -3405,7 +2817,7 @@ index edb146d..a793a20 100644
+}
+early_initcall(arm64_console_setup);
diff --git a/arch/arm64/kernel/smp.c b/arch/arm64/kernel/smp.c
-index 4743397..4e390ac 100644
+index b06d1d9..2988829 100644
--- a/arch/arm64/kernel/smp.c
+++ b/arch/arm64/kernel/smp.c
@@ -321,7 +321,7 @@ void __init smp_prepare_boot_cpu(void)
@@ -3533,63 +2945,6 @@ index 0000000..e1153ce
+ .cpu_prepare = smp_parking_protocol_cpu_prepare,
+ .cpu_boot = smp_parking_protocol_cpu_boot,
+};
-diff --git a/arch/arm64/kernel/smp_spin_table.c b/arch/arm64/kernel/smp_spin_table.c
-index 0347d38..4f93c67 100644
---- a/arch/arm64/kernel/smp_spin_table.c
-+++ b/arch/arm64/kernel/smp_spin_table.c
-@@ -20,6 +20,7 @@
- #include <linux/init.h>
- #include <linux/of.h>
- #include <linux/smp.h>
-+#include <linux/types.h>
-
- #include <asm/cacheflush.h>
- #include <asm/cpu_ops.h>
-@@ -65,12 +66,21 @@ static int smp_spin_table_cpu_init(struct device_node *dn, unsigned int cpu)
-
- static int smp_spin_table_cpu_prepare(unsigned int cpu)
- {
-- void **release_addr;
-+ __le64 __iomem *release_addr;
-
- if (!cpu_release_addr[cpu])
- return -ENODEV;
-
-- release_addr = __va(cpu_release_addr[cpu]);
-+ /*
-+ * The cpu-release-addr may or may not be inside the linear mapping.
-+ * As ioremap_cache will either give us a new mapping or reuse the
-+ * existing linear mapping, we can use it to cover both cases. In
-+ * either case the memory will be MT_NORMAL.
-+ */
-+ release_addr = ioremap_cache(cpu_release_addr[cpu],
-+ sizeof(*release_addr));
-+ if (!release_addr)
-+ return -ENOMEM;
-
- /*
- * We write the release address as LE regardless of the native
-@@ -79,15 +89,17 @@ static int smp_spin_table_cpu_prepare(unsigned int cpu)
- * boot-loader's endianess before jumping. This is mandated by
- * the boot protocol.
- */
-- release_addr[0] = (void *) cpu_to_le64(__pa(secondary_holding_pen));
--
-- __flush_dcache_area(release_addr, sizeof(release_addr[0]));
-+ writeq_relaxed(__pa(secondary_holding_pen), release_addr);
-+ __flush_dcache_area((__force void *)release_addr,
-+ sizeof(*release_addr));
-
- /*
- * Send an event to wake up the secondary CPU.
- */
- sev();
-
-+ iounmap(release_addr);
-+
- return 0;
- }
-
diff --git a/arch/arm64/kernel/time.c b/arch/arm64/kernel/time.c
index 1a7125c..42f9195 100644
--- a/arch/arm64/kernel/time.c
@@ -3615,99 +2970,36 @@ index 1a7125c..42f9195 100644
arch_timer_rate = arch_timer_get_rate();
if (!arch_timer_rate)
panic("Unable to initialise architected timer.\n");
-diff --git a/arch/arm64/kvm/hyp-init.S b/arch/arm64/kvm/hyp-init.S
-index c319116..fa7e67e 100644
---- a/arch/arm64/kvm/hyp-init.S
-+++ b/arch/arm64/kvm/hyp-init.S
-@@ -63,17 +63,21 @@ __do_hyp_init:
- mrs x4, tcr_el1
- ldr x5, =TCR_EL2_MASK
- and x4, x4, x5
-- ldr x5, =TCR_EL2_FLAGS
-- orr x4, x4, x5
-- msr tcr_el2, x4
--
-- ldr x4, =VTCR_EL2_FLAGS
- /*
- * Read the PARange bits from ID_AA64MMFR0_EL1 and set the PS bits in
-- * VTCR_EL2.
-+ * TCR_EL2 and both PS bits and T0SZ bits in VTCR_EL2.
- */
- mrs x5, ID_AA64MMFR0_EL1
- bfi x4, x5, #16, #3
-+ msr tcr_el2, x4
-+
-+ ldr x4, =VTCR_EL2_FLAGS
-+ bfi x4, x5, #16, #3
-+ and x5, x5, #0xf
-+ adr x6, t0sz
-+ add x6, x6, x5, lsl #2
-+ ldr w5, [x6]
-+ orr x4, x4, x5
- msr vtcr_el2, x4
-
- mrs x4, mair_el1
-@@ -113,6 +117,10 @@ target: /* We're now in the trampoline code, switch page tables */
-
- /* Hello, World! */
- eret
-+
-+t0sz:
-+ .word VTCR_EL2_T0SZ(32), VTCR_EL2_T0SZ(36), VTCR_EL2_T0SZ(40)
-+ .word VTCR_EL2_T0SZ(42), VTCR_EL2_T0SZ(44), VTCR_EL2_T0SZ(48)
- ENDPROC(__kvm_hyp_init)
-
- .ltorg
diff --git a/arch/arm64/mm/dma-mapping.c b/arch/arm64/mm/dma-mapping.c
-index 4164c5a..b864a24 100644
+index d920942..fda70ab 100644
--- a/arch/arm64/mm/dma-mapping.c
+++ b/arch/arm64/mm/dma-mapping.c
-@@ -23,10 +23,13 @@
+@@ -23,8 +23,14 @@
+ #include <linux/genalloc.h>
#include <linux/dma-mapping.h>
#include <linux/dma-contiguous.h>
- #include <linux/of.h>
++#include <linux/of.h>
+#include <linux/of_address.h>
- #include <linux/platform_device.h>
++#include <linux/platform_device.h>
#include <linux/vmalloc.h>
#include <linux/swiotlb.h>
- #include <linux/amba/bus.h>
++#include <linux/amba/bus.h>
+#include <linux/acpi.h>
+#include <linux/pci.h>
#include <asm/cacheflush.h>
-@@ -319,6 +322,63 @@ static int dma_bus_notifier(struct notifier_block *nb,
- if (of_property_read_bool(dev->of_node, "dma-coherent"))
- set_dma_ops(dev, &coherent_swiotlb_dma_ops);
+@@ -423,10 +429,107 @@ out:
+ return -ENOMEM;
+ }
-+#ifdef CONFIG_ACPI
-+ else if (ACPI_HANDLE(dev)) {
-+ acpi_status status;
-+ int coherent;
-+
-+ /*
-+ * Kernel defaults to noncoherent ops but ACPI 5.1 spec says arm64
-+ * defaults to coherent. Set coherent ops if _CCA not found or _CCA
-+ * found and non-zero.
-+ */
-+ status = acpi_check_coherency(ACPI_HANDLE(dev), &coherent);
-+ if (ACPI_FAILURE(status) || coherent)
-+ set_dma_ops(dev, &coherent_swiotlb_dma_ops);
-+ }
-+#endif
-+ return NOTIFY_OK;
-+}
-+
-+static int dma_bus_notifier_pci(struct notifier_block *nb,
-+ unsigned long event, void *_dev)
++#ifdef CONFIG_PCI
++static void arm64_of_set_dma_ops(void *_dev)
+{
+ struct device *dev = _dev;
+
-+ if (event != BUS_NOTIFY_ADD_DEVICE)
-+ return NOTIFY_DONE;
-+
+ /*
-+ * PCI devices won't have an of_node but the bridge will.
++ * PCI devices won't have an ACPI handle but the bridge will.
+ * Search up the device chain until we find an of_node
+ * to check.
+ */
@@ -3717,48 +3009,94 @@ index 4164c5a..b864a24 100644
+ set_dma_ops(_dev, &coherent_swiotlb_dma_ops);
+ break;
+ }
++ dev = dev->parent;
++ }
++}
++#else
++static inline arm64_of_set_dma_ops(void *_dev) {}
++#endif
++
++
+#ifdef CONFIG_ACPI
++static void arm64_acpi_set_dma_ops(void *_dev)
++{
++ struct device *dev = _dev;
++
++ /*
++ * Kernel defaults to noncoherent ops but ACPI 5.1 spec says arm64
++ * defaults to coherent. Set coherent ops if _CCA not found or _CCA
++ * found and non-zero.
++ *
++ * PCI devices won't have an of_node but the bridge will.
++ * Search up the device chain until we find an ACPI handle
++ * to check.
++ */
++ while (dev) {
+ if (ACPI_HANDLE(dev)) {
+ acpi_status status;
+ int coherent;
-+
-+ /*
-+ * Kernel defaults to noncoherent ops but ACPI 5.1 spec says arm64
-+ * defaults to coherent. Set coherent ops if _CCA not found or _CCA
-+ * found and non-zero.
-+ */
-+ status = acpi_check_coherency(ACPI_HANDLE(dev), &coherent);
-+ if (ACPI_FAILURE(status) || coherent) {
++ status = acpi_check_coherency(ACPI_HANDLE(dev),
++ &coherent);
++ if (ACPI_FAILURE(status) || coherent)
+ set_dma_ops(dev, &coherent_swiotlb_dma_ops);
-+ break;
-+ }
++ break;
+ }
-+#endif
+ dev = dev->parent;
+ }
++}
++#else
++static inline arm64_acpi_set_dma_ops(void *_dev) {}
++#endif
+
- return NOTIFY_OK;
- }
-
-@@ -330,6 +390,10 @@ static struct notifier_block amba_bus_nb = {
- .notifier_call = dma_bus_notifier,
- };
-
++static int dma_bus_notifier(struct notifier_block *nb,
++ unsigned long event, void *_dev)
++{
++ if (event != BUS_NOTIFY_ADD_DEVICE)
++ return NOTIFY_DONE;
++
++ if (acpi_disabled)
++ arm64_of_set_dma_ops(_dev);
++ else
++ arm64_acpi_set_dma_ops(_dev);
++
++ return NOTIFY_OK;
++}
++
++#ifdef CONFIG_ACPI
++static struct notifier_block platform_bus_nb = {
++ .notifier_call = dma_bus_notifier,
++};
++
++static struct notifier_block amba_bus_nb = {
++ .notifier_call = dma_bus_notifier,
++};
++#endif
++
++#ifdef CONFIG_PCI
+static struct notifier_block pci_bus_nb = {
-+ .notifier_call = dma_bus_notifier_pci,
++ .notifier_call = dma_bus_notifier,
+};
++#endif
+
- extern int swiotlb_late_init_with_default_size(size_t default_size);
-
static int __init swiotlb_late_init(void)
-@@ -341,6 +405,7 @@ static int __init swiotlb_late_init(void)
- */
- bus_register_notifier(&platform_bus_type, &platform_bus_nb);
- bus_register_notifier(&amba_bustype, &amba_bus_nb);
-+ bus_register_notifier(&pci_bus_type, &pci_bus_nb);
+ {
+ size_t swiotlb_size = min(SZ_64M, MAX_ORDER_NR_PAGES << PAGE_SHIFT);
++ /*
++ * These must be registered before of_platform_populate().
++ */
++#ifdef CONFIG_ACPI
++ bus_register_notifier(&platform_bus_type, &platform_bus_nb);
++ bus_register_notifier(&amba_bustype, &amba_bus_nb);
++#endif
++
++#ifdef CONFIG_PCI
++ bus_register_notifier(&pci_bus_type, &pci_bus_nb);
++#endif
++
dma_ops = &noncoherent_swiotlb_dma_ops;
+ return swiotlb_late_init_with_default_size(swiotlb_size);
diff --git a/arch/arm64/pci/Makefile b/arch/arm64/pci/Makefile
new file mode 100644
index 0000000..b8d5dbd
@@ -3832,7 +3170,7 @@ index d0f3265..3343080 100644
help
This driver creates entries in /sys/bus/pci/slots/ for all PCI
diff --git a/drivers/acpi/Makefile b/drivers/acpi/Makefile
-index 505d4d7..6f3a74d 100644
+index 505d4d7..252d0ff 100644
--- a/drivers/acpi/Makefile
+++ b/drivers/acpi/Makefile
@@ -23,7 +23,11 @@ acpi-y += nvs.o
@@ -3847,7 +3185,7 @@ index 505d4d7..6f3a74d 100644
acpi-y += device_pm.o
acpi-$(CONFIG_ACPI_SLEEP) += proc.o
-@@ -39,7 +43,7 @@ acpi-y += processor_core.o
+@@ -39,13 +43,14 @@ acpi-y += processor_core.o
acpi-$(CONFIG_ARCH_MIGHT_HAVE_ACPI_PDC) += processor_pdc.o
acpi-y += ec.o
acpi-$(CONFIG_ACPI_DOCK) += dock.o
@@ -3856,21 +3194,13 @@ index 505d4d7..6f3a74d 100644
acpi-y += acpi_lpss.o
acpi-y += acpi_platform.o
acpi-y += acpi_pnp.o
-diff --git a/drivers/acpi/acpica/utresrc.c b/drivers/acpi/acpica/utresrc.c
-index 14cb6c0..5cd017c 100644
---- a/drivers/acpi/acpica/utresrc.c
-+++ b/drivers/acpi/acpica/utresrc.c
-@@ -87,7 +87,9 @@ const char *acpi_gbl_io_decode[] = {
-
- const char *acpi_gbl_ll_decode[] = {
- "ActiveHigh",
-- "ActiveLow"
-+ "ActiveLow",
-+ "ActiveBoth",
-+ "Reserved"
- };
-
- const char *acpi_gbl_max_decode[] = {
+ acpi-y += power.o
+ acpi-y += event.o
+ acpi-y += sysfs.o
++acpi-y += property.o
+ acpi-$(CONFIG_X86) += acpi_cmos_rtc.o
+ acpi-$(CONFIG_DEBUG_FS) += debugfs.o
+ acpi-$(CONFIG_ACPI_NUMA) += numa.o
diff --git a/drivers/acpi/bus.c b/drivers/acpi/bus.c
index 8b67bd0..c412fdb 100644
--- a/drivers/acpi/bus.c
@@ -3886,7 +3216,7 @@ index 8b67bd0..c412fdb 100644
message = "platform specific model";
break;
diff --git a/drivers/acpi/internal.h b/drivers/acpi/internal.h
-index 4c5cf77..e1e6487 100644
+index 4c5cf77..926ca5c 100644
--- a/drivers/acpi/internal.h
+++ b/drivers/acpi/internal.h
@@ -26,8 +26,13 @@
@@ -3903,11 +3233,22 @@ index 4c5cf77..e1e6487 100644
void acpi_processor_init(void);
void acpi_platform_init(void);
void acpi_pnp_init(void);
+@@ -181,4 +186,10 @@ struct platform_device *acpi_create_platform_device(struct acpi_device *adev);
+ bool acpi_osi_is_win8(void);
+ #endif
+
++/*--------------------------------------------------------------------------
++ Device properties
++ -------------------------------------------------------------------------- */
++void acpi_init_properties(struct acpi_device *adev);
++void acpi_free_properties(struct acpi_device *adev);
++
+ #endif /* _ACPI_INTERNAL_H_ */
diff --git a/drivers/acpi/osl.c b/drivers/acpi/osl.c
-index 3abe9b2..c50757b 100644
+index 9964f70..5c480d5 100644
--- a/drivers/acpi/osl.c
+++ b/drivers/acpi/osl.c
-@@ -326,11 +326,11 @@ acpi_map_lookup_virt(void __iomem *virt, acpi_size size)
+@@ -336,11 +336,11 @@ acpi_map_lookup_virt(void __iomem *virt, acpi_size size)
return NULL;
}
@@ -3923,7 +3264,7 @@ index 3abe9b2..c50757b 100644
static void __iomem *acpi_map(acpi_physical_address pg_off, unsigned long pg_sz)
diff --git a/drivers/acpi/processor_core.c b/drivers/acpi/processor_core.c
-index e32321c..4007313 100644
+index ef58f46..5c84e0d 100644
--- a/drivers/acpi/processor_core.c
+++ b/drivers/acpi/processor_core.c
@@ -64,6 +64,38 @@ static int map_lsapic_id(struct acpi_subtable_header *entry,
@@ -3984,6 +3325,724 @@ index e32321c..4007313 100644
}
exit:
+diff --git a/drivers/acpi/property.c b/drivers/acpi/property.c
+new file mode 100644
+index 0000000..ff53eb8
+--- /dev/null
++++ b/drivers/acpi/property.c
+@@ -0,0 +1,586 @@
++/*
++ * ACPI device specific properties support.
++ *
++ * Copyright (C) 2014, Intel Corporation
++ * All rights reserved.
++ *
++ * Authors: Mika Westerberg <mika.westerberg@linux.intel.com>
++ * Darren Hart <dvhart@linux.intel.com>
++ * Rafael J. Wysocki <rafael.j.wysocki@intel.com>
++ *
++ * This program is free software; you can redistribute it and/or modify
++ * it under the terms of the GNU General Public License version 2 as
++ * published by the Free Software Foundation.
++ */
++
++#include <linux/acpi.h>
++#include <linux/device.h>
++#include <linux/export.h>
++
++#include "internal.h"
++
++/* ACPI _DSD device properties UUID: daffd814-6eba-4d8c-8a91-bc9bbf4aa301 */
++static const u8 prp_uuid[16] = {
++ 0x14, 0xd8, 0xff, 0xda, 0xba, 0x6e, 0x8c, 0x4d,
++ 0x8a, 0x91, 0xbc, 0x9b, 0xbf, 0x4a, 0xa3, 0x01
++};
++
++static bool acpi_property_value_ok(const union acpi_object *value)
++{
++ int j;
++
++ /*
++ * The value must be an integer, a string, a reference, or a package
++ * whose every element must be an integer, a string, or a reference.
++ */
++ switch (value->type) {
++ case ACPI_TYPE_INTEGER:
++ case ACPI_TYPE_STRING:
++ case ACPI_TYPE_LOCAL_REFERENCE:
++ return true;
++
++ case ACPI_TYPE_PACKAGE:
++ for (j = 0; j < value->package.count; j++)
++ switch (value->package.elements[j].type) {
++ case ACPI_TYPE_INTEGER:
++ case ACPI_TYPE_STRING:
++ case ACPI_TYPE_LOCAL_REFERENCE:
++ continue;
++
++ default:
++ return false;
++ }
++
++ return true;
++ }
++ return false;
++}
++
++static bool acpi_properties_format_valid(const union acpi_object *properties)
++{
++ int i;
++
++ for (i = 0; i < properties->package.count; i++) {
++ const union acpi_object *property;
++
++ property = &properties->package.elements[i];
++ /*
++ * Only two elements allowed, the first one must be a string and
++ * the second one has to satisfy certain conditions.
++ */
++ if (property->package.count != 2
++ || property->package.elements[0].type != ACPI_TYPE_STRING
++ || !acpi_property_value_ok(&property->package.elements[1]))
++ return false;
++ }
++ return true;
++}
++
++static void acpi_init_of_compatible(struct acpi_device *adev)
++{
++ const union acpi_object *of_compatible;
++ struct acpi_hardware_id *hwid;
++ bool acpi_of = false;
++
++ /*
++ * Check if the special PRP0001 ACPI ID is present and in that
++ * case we fill in Device Tree compatible properties for this
++ * device.
++ */
++ list_for_each_entry(hwid, &adev->pnp.ids, list) {
++ if (!strcmp(hwid->id, "PRP0001")) {
++ acpi_of = true;
++ break;
++ }
++ }
++
++ if (!acpi_of)
++ return;
++
++ if (acpi_dev_get_property_array(adev, "compatible", ACPI_TYPE_STRING,
++ &of_compatible)) {
++ acpi_handle_warn(adev->handle,
++ "PRP0001 requires compatible property\n");
++ return;
++ }
++
++ adev->data.of_compatible = of_compatible;
++}
++
++void acpi_init_properties(struct acpi_device *adev)
++{
++ struct acpi_buffer buf = { ACPI_ALLOCATE_BUFFER };
++ const union acpi_object *desc;
++ acpi_status status;
++ int i;
++
++ status = acpi_evaluate_object_typed(adev->handle, "_DSD", NULL, &buf,
++ ACPI_TYPE_PACKAGE);
++ if (ACPI_FAILURE(status))
++ return;
++
++ desc = buf.pointer;
++ if (desc->package.count % 2)
++ goto fail;
++
++ /* Look for the device properties UUID. */
++ for (i = 0; i < desc->package.count; i += 2) {
++ const union acpi_object *uuid, *properties;
++
++ uuid = &desc->package.elements[i];
++ properties = &desc->package.elements[i + 1];
++
++ /*
++ * The first element must be a UUID and the second one must be
++ * a package.
++ */
++ if (uuid->type != ACPI_TYPE_BUFFER || uuid->buffer.length != 16
++ || properties->type != ACPI_TYPE_PACKAGE)
++ break;
++
++ if (memcmp(uuid->buffer.pointer, prp_uuid, sizeof(prp_uuid)))
++ continue;
++
++ /*
++ * We found the matching UUID. Now validate the format of the
++ * package immediately following it.
++ */
++ if (!acpi_properties_format_valid(properties))
++ break;
++
++ adev->data.pointer = buf.pointer;
++ adev->data.properties = properties;
++
++ acpi_init_of_compatible(adev);
++ return;
++ }
++
++ fail:
++ dev_warn(&adev->dev, "Returned _DSD data is not valid, skipping\n");
++ ACPI_FREE(buf.pointer);
++}
++
++void acpi_free_properties(struct acpi_device *adev)
++{
++ ACPI_FREE((void *)adev->data.pointer);
++ adev->data.of_compatible = NULL;
++ adev->data.pointer = NULL;
++ adev->data.properties = NULL;
++}
++
++/**
++ * acpi_dev_get_property - return an ACPI property with given name
++ * @adev: ACPI device to get property
++ * @name: Name of the property
++ * @type: Expected property type
++ * @obj: Location to store the property value (if not %NULL)
++ *
++ * Look up a property with @name and store a pointer to the resulting ACPI
++ * object at the location pointed to by @obj if found.
++ *
++ * Callers must not attempt to free the returned objects. These objects will be
++ * freed by the ACPI core automatically during the removal of @adev.
++ *
++ * Return: %0 if property with @name has been found (success),
++ * %-EINVAL if the arguments are invalid,
++ * %-ENODATA if the property doesn't exist,
++ * %-EPROTO if the property value type doesn't match @type.
++ */
++int acpi_dev_get_property(struct acpi_device *adev, const char *name,
++ acpi_object_type type, const union acpi_object **obj)
++{
++ const union acpi_object *properties;
++ int i;
++
++ if (!adev || !name)
++ return -EINVAL;
++
++ if (!adev->data.pointer || !adev->data.properties)
++ return -ENODATA;
++
++ properties = adev->data.properties;
++ for (i = 0; i < properties->package.count; i++) {
++ const union acpi_object *propname, *propvalue;
++ const union acpi_object *property;
++
++ property = &properties->package.elements[i];
++
++ propname = &property->package.elements[0];
++ propvalue = &property->package.elements[1];
++
++ if (!strcmp(name, propname->string.pointer)) {
++ if (type != ACPI_TYPE_ANY && propvalue->type != type)
++ return -EPROTO;
++ else if (obj)
++ *obj = propvalue;
++
++ return 0;
++ }
++ }
++ return -ENODATA;
++}
++EXPORT_SYMBOL_GPL(acpi_dev_get_property);
++
++/**
++ * acpi_dev_get_property_array - return an ACPI array property with given name
++ * @adev: ACPI device to get property
++ * @name: Name of the property
++ * @type: Expected type of array elements
++ * @obj: Location to store a pointer to the property value (if not NULL)
++ *
++ * Look up an array property with @name and store a pointer to the resulting
++ * ACPI object at the location pointed to by @obj if found.
++ *
++ * Callers must not attempt to free the returned objects. Those objects will be
++ * freed by the ACPI core automatically during the removal of @adev.
++ *
++ * Return: %0 if array property (package) with @name has been found (success),
++ * %-EINVAL if the arguments are invalid,
++ * %-ENODATA if the property doesn't exist,
++ * %-EPROTO if the property is not a package or the type of its elements
++ * doesn't match @type.
++ */
++int acpi_dev_get_property_array(struct acpi_device *adev, const char *name,
++ acpi_object_type type,
++ const union acpi_object **obj)
++{
++ const union acpi_object *prop;
++ int ret, i;
++
++ ret = acpi_dev_get_property(adev, name, ACPI_TYPE_PACKAGE, &prop);
++ if (ret)
++ return ret;
++
++ if (type != ACPI_TYPE_ANY) {
++ /* Check that all elements are of correct type. */
++ for (i = 0; i < prop->package.count; i++)
++ if (prop->package.elements[i].type != type)
++ return -EPROTO;
++ }
++ if (obj)
++ *obj = prop;
++
++ return 0;
++}
++EXPORT_SYMBOL_GPL(acpi_dev_get_property_array);
++
++/**
++ * acpi_dev_get_property_reference - returns handle to the referenced object
++ * @adev: ACPI device to get property
++ * @name: Name of the property
++ * @size_prop: Name of the "size" property in referenced object
++ * @index: Index of the reference to return
++ * @args: Location to store the returned reference with optional arguments
++ *
++ * Find property with @name, verifify that it is a package containing at least
++ * one object reference and if so, store the ACPI device object pointer to the
++ * target object in @args->adev.
++ *
++ * If the reference includes arguments (@size_prop is not %NULL) follow the
++ * reference and check whether or not there is an integer property @size_prop
++ * under the target object and if so, whether or not its value matches the
++ * number of arguments that follow the reference. If there's more than one
++ * reference in the property value package, @index is used to select the one to
++ * return.
++ *
++ * Return: %0 on success, negative error code on failure.
++ */
++int acpi_dev_get_property_reference(struct acpi_device *adev, const char *name,
++ const char *size_prop, size_t index,
++ struct acpi_reference_args *args)
++{
++ const union acpi_object *element, *end;
++ const union acpi_object *obj;
++ struct acpi_device *device;
++ int ret, idx = 0;
++
++ ret = acpi_dev_get_property(adev, name, ACPI_TYPE_ANY, &obj);
++ if (ret)
++ return ret;
++
++ /*
++ * The simplest case is when the value is a single reference. Just
++ * return that reference then.
++ */
++ if (obj->type == ACPI_TYPE_LOCAL_REFERENCE) {
++ if (size_prop || index)
++ return -EINVAL;
++
++ ret = acpi_bus_get_device(obj->reference.handle, &device);
++ if (ret)
++ return ret;
++
++ args->adev = device;
++ args->nargs = 0;
++ return 0;
++ }
++
++ /*
++ * If it is not a single reference, then it is a package of
++ * references followed by number of ints as follows:
++ *
++ * Package () { REF, INT, REF, INT, INT }
++ *
++ * The index argument is then used to determine which reference
++ * the caller wants (along with the arguments).
++ */
++ if (obj->type != ACPI_TYPE_PACKAGE || index >= obj->package.count)
++ return -EPROTO;
++
++ element = obj->package.elements;
++ end = element + obj->package.count;
++
++ while (element < end) {
++ u32 nargs, i;
++
++ if (element->type != ACPI_TYPE_LOCAL_REFERENCE)
++ return -EPROTO;
++
++ ret = acpi_bus_get_device(element->reference.handle, &device);
++ if (ret)
++ return -ENODEV;
++
++ element++;
++ nargs = 0;
++
++ if (size_prop) {
++ const union acpi_object *prop;
++
++ /*
++ * Find out how many arguments the refenced object
++ * expects by reading its size_prop property.
++ */
++ ret = acpi_dev_get_property(device, size_prop,
++ ACPI_TYPE_INTEGER, &prop);
++ if (ret)
++ return ret;
++
++ nargs = prop->integer.value;
++ if (nargs > MAX_ACPI_REFERENCE_ARGS
++ || element + nargs > end)
++ return -EPROTO;
++
++ /*
++ * Skip to the start of the arguments and verify
++ * that they all are in fact integers.
++ */
++ for (i = 0; i < nargs; i++)
++ if (element[i].type != ACPI_TYPE_INTEGER)
++ return -EPROTO;
++ } else {
++ /* assume following integer elements are all args */
++ for (i = 0; element + i < end; i++) {
++ int type = element[i].type;
++
++ if (type == ACPI_TYPE_INTEGER)
++ nargs++;
++ else if (type == ACPI_TYPE_LOCAL_REFERENCE)
++ break;
++ else
++ return -EPROTO;
++ }
++ }
++
++ if (idx++ == index) {
++ args->adev = device;
++ args->nargs = nargs;
++ for (i = 0; i < nargs; i++)
++ args->args[i] = element[i].integer.value;
++
++ return 0;
++ }
++
++ element += nargs;
++ }
++
++ return -EPROTO;
++}
++EXPORT_SYMBOL_GPL(acpi_dev_get_property_reference);
++
++int acpi_dev_prop_get(struct acpi_device *adev, const char *propname,
++ void **valptr)
++{
++ return acpi_dev_get_property(adev, propname, ACPI_TYPE_ANY,
++ (const union acpi_object **)valptr);
++}
++
++int acpi_dev_prop_read(struct acpi_device *adev, const char *propname,
++ enum dev_prop_type proptype, void *val)
++{
++ const union acpi_object *obj;
++ int ret = -EINVAL;
++
++ if (!val)
++ return -EINVAL;
++
++ if (proptype >= DEV_PROP_U8 && proptype <= DEV_PROP_U64) {
++ ret = acpi_dev_get_property(adev, propname, ACPI_TYPE_INTEGER, &obj);
++ if (ret)
++ return ret;
++
++ switch (proptype) {
++ case DEV_PROP_U8:
++ if (obj->integer.value > U8_MAX)
++ return -EOVERFLOW;
++ *(u8 *)val = obj->integer.value;
++ break;
++ case DEV_PROP_U16:
++ if (obj->integer.value > U16_MAX)
++ return -EOVERFLOW;
++ *(u16 *)val = obj->integer.value;
++ break;
++ case DEV_PROP_U32:
++ if (obj->integer.value > U32_MAX)
++ return -EOVERFLOW;
++ *(u32 *)val = obj->integer.value;
++ break;
++ default:
++ *(u64 *)val = obj->integer.value;
++ break;
++ }
++ } else if (proptype == DEV_PROP_STRING) {
++ ret = acpi_dev_get_property(adev, propname, ACPI_TYPE_STRING, &obj);
++ if (ret)
++ return ret;
++
++ *(char **)val = obj->string.pointer;
++ }
++ return ret;
++}
++
++static int acpi_copy_property_array_u8(const union acpi_object *items, u8 *val,
++ size_t nval)
++{
++ int i;
++
++ for (i = 0; i < nval; i++) {
++ if (items[i].type != ACPI_TYPE_INTEGER)
++ return -EPROTO;
++ if (items[i].integer.value > U8_MAX)
++ return -EOVERFLOW;
++
++ val[i] = items[i].integer.value;
++ }
++ return 0;
++}
++
++static int acpi_copy_property_array_u16(const union acpi_object *items,
++ u16 *val, size_t nval)
++{
++ int i;
++
++ for (i = 0; i < nval; i++) {
++ if (items[i].type != ACPI_TYPE_INTEGER)
++ return -EPROTO;
++ if (items[i].integer.value > U16_MAX)
++ return -EOVERFLOW;
++
++ val[i] = items[i].integer.value;
++ }
++ return 0;
++}
++
++static int acpi_copy_property_array_u32(const union acpi_object *items,
++ u32 *val, size_t nval)
++{
++ int i;
++
++ for (i = 0; i < nval; i++) {
++ if (items[i].type != ACPI_TYPE_INTEGER)
++ return -EPROTO;
++ if (items[i].integer.value > U32_MAX)
++ return -EOVERFLOW;
++
++ val[i] = items[i].integer.value;
++ }
++ return 0;
++}
++
++static int acpi_copy_property_array_u64(const union acpi_object *items,
++ u64 *val, size_t nval)
++{
++ int i;
++
++ for (i = 0; i < nval; i++) {
++ if (items[i].type != ACPI_TYPE_INTEGER)
++ return -EPROTO;
++
++ val[i] = items[i].integer.value;
++ }
++ return 0;
++}
++
++static int acpi_copy_property_array_string(const union acpi_object *items,
++ char **val, size_t nval)
++{
++ int i;
++
++ for (i = 0; i < nval; i++) {
++ if (items[i].type != ACPI_TYPE_STRING)
++ return -EPROTO;
++
++ val[i] = items[i].string.pointer;
++ }
++ return 0;
++}
++
++int acpi_dev_prop_read_array(struct acpi_device *adev, const char *propname,
++ enum dev_prop_type proptype, void *val,
++ size_t nval)
++{
++ const union acpi_object *obj;
++ const union acpi_object *items;
++ int ret;
++
++ ret = acpi_dev_get_property_array(adev, propname, ACPI_TYPE_ANY, &obj);
++ if (ret)
++ return ret;
++
++ if (!val)
++ return obj->package.count;
++
++ if (nval > obj->package.count)
++ nval = obj->package.count;
++
++ items = obj->package.elements;
++ switch (proptype) {
++ case DEV_PROP_U8:
++ ret = acpi_copy_property_array_u8(items, (u8 *)val, nval);
++ break;
++ case DEV_PROP_U16:
++ ret = acpi_copy_property_array_u16(items, (u16 *)val, nval);
++ break;
++ case DEV_PROP_U32:
++ ret = acpi_copy_property_array_u32(items, (u32 *)val, nval);
++ break;
++ case DEV_PROP_U64:
++ ret = acpi_copy_property_array_u64(items, (u64 *)val, nval);
++ break;
++ case DEV_PROP_STRING:
++ ret = acpi_copy_property_array_string(items, (char **)val, nval);
++ break;
++ default:
++ ret = -EINVAL;
++ break;
++ }
++ return ret;
++}
++
++int acpi_for_each_child_node(struct device *dev,
++ int (*fn)(struct device *dev, void *child, void *data),
++ void *data)
++{
++ struct acpi_device *adev = ACPI_COMPANION(dev);
++ struct acpi_device *child;
++ int ret = 0;
++
++ if (!adev)
++ return -EINVAL;
++
++ list_for_each_entry(child, &adev->children, node) {
++ ret = fn(dev, child, data);
++ if (ret)
++ break;
++ }
++ return ret;
++}
+diff --git a/drivers/acpi/scan.c b/drivers/acpi/scan.c
+index ae44d86..4da55d8 100644
+--- a/drivers/acpi/scan.c
++++ b/drivers/acpi/scan.c
+@@ -124,17 +124,43 @@ static int create_modalias(struct acpi_device *acpi_dev, char *modalias,
+ if (list_empty(&acpi_dev->pnp.ids))
+ return 0;
+
+- len = snprintf(modalias, size, "acpi:");
+- size -= len;
++ /*
++ * If the device has PRP0001 we expose DT compatible modalias
++ * instead.
++ */
++ if (acpi_dev->data.of_compatible) {
++ const union acpi_object *of_compatible, *obj;
++ int i;
++
++ len = snprintf(modalias, size, "of:Nprp0001Tacpi");
++
++ of_compatible = acpi_dev->data.of_compatible;
++ for (i = 0; i < of_compatible->package.count; i++) {
++ obj = &of_compatible->package.elements[i];
+
+- list_for_each_entry(id, &acpi_dev->pnp.ids, list) {
+- count = snprintf(&modalias[len], size, "%s:", id->id);
+- if (count < 0)
+- return -EINVAL;
+- if (count >= size)
+- return -ENOMEM;
+- len += count;
+- size -= count;
++ count = snprintf(&modalias[len], size, "C%s",
++ obj->string.pointer);
++ if (count < 0)
++ return -EINVAL;
++ if (count >= size)
++ return -ENOMEM;
++
++ len += count;
++ size -= count;
++ }
++ } else {
++ len = snprintf(modalias, size, "acpi:");
++ size -= len;
++
++ list_for_each_entry(id, &acpi_dev->pnp.ids, list) {
++ count = snprintf(&modalias[len], size, "%s:", id->id);
++ if (count < 0)
++ return -EINVAL;
++ if (count >= size)
++ return -ENOMEM;
++ len += count;
++ size -= count;
++ }
+ }
+
+ modalias[len] = '\0';
+@@ -864,6 +890,51 @@ int acpi_match_device_ids(struct acpi_device *device,
+ }
+ EXPORT_SYMBOL(acpi_match_device_ids);
+
++/* Performs match for special "PRP0001" shoehorn ACPI ID */
++static bool acpi_of_driver_match_device(struct device *dev,
++ const struct device_driver *drv)
++{
++ struct acpi_device *adev = ACPI_COMPANION(dev);
++ const union acpi_object *of_compatible;
++ int i;
++
++ /*
++ * If the ACPI device does not have corresponding compatible
++ * property or the driver in question does not have DT matching
++ * table we consider the match succesful (matches the ACPI ID).
++ */
++ of_compatible = adev->data.of_compatible;
++ if (!drv->of_match_table || !of_compatible)
++ return true;
++
++ /* Now we can look for the driver DT compatible strings */
++ for (i = 0; i < of_compatible->package.count; i++) {
++ const struct of_device_id *id;
++ const union acpi_object *obj;
++
++ obj = &of_compatible->package.elements[i];
++
++ for (id = drv->of_match_table; id->compatible[0]; id++)
++ if (!strcasecmp(obj->string.pointer, id->compatible))
++ return true;
++ }
++
++ return false;
++}
++
++bool acpi_driver_match_device(struct device *dev,
++ const struct device_driver *drv)
++{
++ const struct acpi_device_id *id;
++
++ id = acpi_match_device(drv->acpi_match_table, dev);
++ if (!id)
++ return false;
++
++ return acpi_of_driver_match_device(dev, drv);
++}
++EXPORT_SYMBOL_GPL(acpi_driver_match_device);
++
+ static void acpi_free_power_resources_lists(struct acpi_device *device)
+ {
+ int i;
+@@ -884,6 +955,7 @@ static void acpi_device_release(struct device *dev)
+ {
+ struct acpi_device *acpi_dev = to_acpi_device(dev);
+
++ acpi_free_properties(acpi_dev);
+ acpi_free_pnp_ids(&acpi_dev->pnp);
+ acpi_free_power_resources_lists(acpi_dev);
+ kfree(acpi_dev);
+@@ -1888,6 +1960,7 @@ void acpi_init_device_object(struct acpi_device *device, acpi_handle handle,
+ acpi_set_device_status(device, sta);
+ acpi_device_get_busid(device);
+ acpi_set_pnp_ids(handle, &device->pnp, type);
++ acpi_init_properties(device);
+ acpi_bus_get_flags(device);
+ device->flags.match_driver = false;
+ device->flags.initialized = true;
diff --git a/drivers/acpi/sleep-arm.c b/drivers/acpi/sleep-arm.c
new file mode 100644
index 0000000..54578ef
@@ -4189,10 +4248,10 @@ index 6d5a6cd..47f36d4 100644
int __init
diff --git a/drivers/acpi/utils.c b/drivers/acpi/utils.c
-index 07c8c5a..aec9656 100644
+index 834f35c..b163f73 100644
--- a/drivers/acpi/utils.c
+++ b/drivers/acpi/utils.c
-@@ -698,3 +698,29 @@ bool acpi_check_dsm(acpi_handle handle, const u8 *uuid, int rev, u64 funcs)
+@@ -697,3 +697,29 @@ bool acpi_check_dsm(acpi_handle handle, const u8 *uuid, int rev, u64 funcs)
return false;
}
EXPORT_SYMBOL(acpi_check_dsm);
@@ -4223,7 +4282,7 @@ index 07c8c5a..aec9656 100644
+}
+EXPORT_SYMBOL(acpi_check_coherency);
diff --git a/drivers/ata/Kconfig b/drivers/ata/Kconfig
-index e1b9278..f2e6c9e 100644
+index cd4cccb..edb00c6 100644
--- a/drivers/ata/Kconfig
+++ b/drivers/ata/Kconfig
@@ -48,7 +48,7 @@ config ATA_VERBOSE_ERROR
@@ -4236,7 +4295,7 @@ index e1b9278..f2e6c9e 100644
help
This option adds support for ATA-related ACPI objects.
diff --git a/drivers/ata/ahci_platform.c b/drivers/ata/ahci_platform.c
-index f61ddb9..3499bab 100644
+index 06f1d59..df2ea85 100644
--- a/drivers/ata/ahci_platform.c
+++ b/drivers/ata/ahci_platform.c
@@ -20,6 +20,9 @@
@@ -4249,7 +4308,7 @@ index f61ddb9..3499bab 100644
#include "ahci.h"
static const struct ata_port_info ahci_port_info = {
-@@ -87,6 +90,13 @@ static const struct of_device_id ahci_of_match[] = {
+@@ -71,6 +74,13 @@ static const struct of_device_id ahci_of_match[] = {
};
MODULE_DEVICE_TABLE(of, ahci_of_match);
@@ -4263,7 +4322,7 @@ index f61ddb9..3499bab 100644
static struct platform_driver ahci_driver = {
.probe = ahci_probe,
.remove = ata_platform_remove_one,
-@@ -94,6 +104,9 @@ static struct platform_driver ahci_driver = {
+@@ -78,6 +88,9 @@ static struct platform_driver ahci_driver = {
.name = "ahci",
.owner = THIS_MODULE,
.of_match_table = ahci_of_match,
@@ -4274,7 +4333,7 @@ index f61ddb9..3499bab 100644
},
};
diff --git a/drivers/ata/ahci_xgene.c b/drivers/ata/ahci_xgene.c
-index f03aab1..b02ba9d 100644
+index 0f8538f..2d8103a 100644
--- a/drivers/ata/ahci_xgene.c
+++ b/drivers/ata/ahci_xgene.c
@@ -28,6 +28,7 @@
@@ -4310,7 +4369,7 @@ index f03aab1..b02ba9d 100644
/**
* xgene_ahci_read_id - Read ID data from the specified device
* @dev: device
-@@ -495,11 +489,6 @@ static int xgene_ahci_probe(struct platform_device *pdev)
+@@ -501,11 +495,6 @@ static int xgene_ahci_probe(struct platform_device *pdev)
return -ENODEV;
}
@@ -4322,7 +4381,7 @@ index f03aab1..b02ba9d 100644
/* Due to errata, HW requires full toggle transition */
rc = ahci_platform_enable_clks(hpriv);
if (rc)
-@@ -512,7 +501,7 @@ static int xgene_ahci_probe(struct platform_device *pdev)
+@@ -518,7 +507,7 @@ static int xgene_ahci_probe(struct platform_device *pdev)
/* Configure the host controller */
xgene_ahci_hw_init(hpriv);
@@ -4331,7 +4390,7 @@ index f03aab1..b02ba9d 100644
hpriv->flags = AHCI_HFLAG_NO_PMP | AHCI_HFLAG_NO_NCQ;
rc = ahci_platform_init_host(pdev, hpriv, &xgene_ahci_port_info);
-@@ -527,6 +516,16 @@ disable_resources:
+@@ -533,6 +522,16 @@ disable_resources:
return rc;
}
@@ -4348,7 +4407,7 @@ index f03aab1..b02ba9d 100644
static const struct of_device_id xgene_ahci_of_match[] = {
{.compatible = "apm,xgene-ahci"},
{},
-@@ -540,6 +539,7 @@ static struct platform_driver xgene_ahci_driver = {
+@@ -546,6 +545,7 @@ static struct platform_driver xgene_ahci_driver = {
.name = "xgene-ahci",
.owner = THIS_MODULE,
.of_match_table = xgene_ahci_of_match,
@@ -4356,8 +4415,262 @@ index f03aab1..b02ba9d 100644
},
};
+diff --git a/drivers/base/Makefile b/drivers/base/Makefile
+index 6922cd6..53c3fe1 100644
+--- a/drivers/base/Makefile
++++ b/drivers/base/Makefile
+@@ -4,7 +4,7 @@ obj-y := component.o core.o bus.o dd.o syscore.o \
+ driver.o class.o platform.o \
+ cpu.o firmware.o init.o map.o devres.o \
+ attribute_container.o transport_class.o \
+- topology.o container.o
++ topology.o container.o property.o
+ obj-$(CONFIG_DEVTMPFS) += devtmpfs.o
+ obj-$(CONFIG_DMA_CMA) += dma-contiguous.o
+ obj-y += power/
+diff --git a/drivers/base/property.c b/drivers/base/property.c
+new file mode 100644
+index 0000000..7bf5708
+--- /dev/null
++++ b/drivers/base/property.c
+@@ -0,0 +1,235 @@
++/*
++ * property.c - Unified device property interface.
++ *
++ * Copyright (C) 2014, Intel Corporation
++ * Authors: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
++ * Mika Westerberg <mika.westerberg@linux.intel.com>
++ *
++ * This program is free software; you can redistribute it and/or modify
++ * it under the terms of the GNU General Public License version 2 as
++ * published by the Free Software Foundation.
++ */
++
++#include <linux/property.h>
++#include <linux/export.h>
++#include <linux/acpi.h>
++#include <linux/of.h>
++
++/**
++ * device_get_property - return a raw property of a device
++ * @dev: Device get the property of
++ * @propname: Name of the property
++ * @valptr: The raw property value is stored here
++ *
++ * Function reads property @propname from the device firmware description and
++ * stores the raw value into @valptr if found. Otherwise returns a negative
++ * errno as specified below.
++ *
++ * Return: %0 if the property was found (success),
++ * %-EINVAL if given arguments are not valid,
++ * %-ENODATA if the property does not exist.
++ */
++int device_get_property(struct device *dev, const char *propname, void **valptr)
++{
++ if (IS_ENABLED(CONFIG_OF) && dev->of_node)
++ return of_dev_prop_get(dev->of_node, propname, valptr);
++
++ return acpi_dev_prop_get(ACPI_COMPANION(dev), propname, valptr);
++}
++EXPORT_SYMBOL_GPL(device_get_property);
++
++/**
++ * device_get_child_property - return a raw property of a device's child
++ * @dev: Parent device
++ * @child: Child to get a property of
++ * @propname: Name of the property
++ * @valptr: The raw property value is stored here
++ *
++ * Function reads property @propname from the firmware description of @child and
++ * stores the raw value into @valptr if found. Otherwise returns a negative
++ * errno as specified below.
++ *
++ * Return: %0 if the property was found (success),
++ * %-EINVAL if given arguments are not valid,
++ * %-ENODATA if the property does not exist.
++ */
++int device_get_child_property(struct device *dev, void *child,
++ const char *propname, void **valptr)
++{
++ if (!child)
++ return -EINVAL;
++
++ if (IS_ENABLED(CONFIG_OF) && dev->of_node)
++ return of_dev_prop_get(child, propname, valptr);
++ else if (ACPI_COMPANION(dev))
++ return acpi_dev_prop_get(child, propname, valptr);
++
++ return -ENODATA;
++}
++EXPORT_SYMBOL_GPL(device_get_child_property);
++
++/**
++ * device_read_property - read a typed property of a device
++ * @dev: Device to get the property of
++ * @propname: Name of the property
++ * @proptype: Type of the property
++ * @val: The value is stored here
++ *
++ * Function reads property @propname from the device firmware description and
++ * stores the value into @val if found. The value is checked to be of type
++ * @proptype.
++ *
++ * Return: %0 if the property was found (success),
++ * %-EINVAL if given arguments are not valid,
++ * %-ENODATA if the property does not exist,
++ * %-EPROTO if the property type does not match @proptype,
++ * %-EOVERFLOW if the property value is out of bounds of @proptype.
++ */
++int device_read_property(struct device *dev, const char *propname,
++ enum dev_prop_type proptype, void *val)
++{
++ if (IS_ENABLED(CONFIG_OF) && dev->of_node)
++ return of_dev_prop_read(dev->of_node, propname, proptype, val);
++
++ return acpi_dev_prop_read(ACPI_COMPANION(dev), propname, proptype, val);
++}
++EXPORT_SYMBOL_GPL(device_read_property);
++
++/**
++ * device_read_child_property - read a typed property of a device's child
++ * @dev: Parent device
++ * @child: Child to read a property of
++ * @propname: Name of the property
++ * @proptype: Type of the property
++ * @val: The value is stored here
++ *
++ * Function reads property @propname from the firmware description of @child and
++ * stores the value into @val if found. The value is checked to be of type
++ * @proptype.
++ *
++ * Return: %0 if the property was found (success),
++ * %-EINVAL if given arguments are not valid,
++ * %-ENODATA if the property does not exist,
++ * %-EPROTO if the property type does not match @proptype,
++ * %-EOVERFLOW if the property value is out of bounds of @proptype.
++ */
++int device_read_child_property(struct device *dev, void *child,
++ const char *propname, enum dev_prop_type proptype,
++ void *val)
++{
++ if (!child)
++ return -EINVAL;
++
++ if (IS_ENABLED(CONFIG_OF) && dev->of_node)
++ return of_dev_prop_read(child, propname, proptype, val);
++ else if (ACPI_COMPANION(dev))
++ return acpi_dev_prop_read(child, propname, proptype, val);
++
++ return -ENODATA;
++}
++EXPORT_SYMBOL_GPL(device_read_child_property);
++
++/**
++ * device_read_property_array - read an array property of a device
++ * @dev: Device to get the property of
++ * @propname: Name of the property
++ * @proptype: Type of the property
++ * @val: The values are stored here
++ * @nval: Size of the @val array
++ *
++ * Function reads an array of properties with @propname from the device
++ * firmware description and stores them to @val if found. All the values
++ * in the array must be of type @proptype.
++ *
++ * Return: %0 if the property was found (success),
++ * %-EINVAL if given arguments are not valid,
++ * %-ENODATA if the property does not exist,
++ * %-EPROTO if the property type does not match @proptype,
++ * %-EOVERFLOW if the property value is out of bounds of @proptype.
++ */
++int device_read_property_array(struct device *dev, const char *propname,
++ enum dev_prop_type proptype, void *val,
++ size_t nval)
++{
++ if (IS_ENABLED(CONFIG_OF) && dev->of_node)
++ return of_dev_prop_read_array(dev->of_node, propname, proptype,
++ val, nval);
++
++ return acpi_dev_prop_read_array(ACPI_COMPANION(dev), propname, proptype,
++ val, nval);
++}
++EXPORT_SYMBOL_GPL(device_read_property_array);
++
++/**
++ * device_read_child_property_array - read an array property of a device's child
++ * @dev: Parent device
++ * @child: Child to get the property of
++ * @propname: Name of the property
++ * @proptype: Type of the property
++ * @val: The values are stored here
++ * @nval: Size of the @val array
++ *
++ * Function reads an array of properties with @propname from the firmware
++ * description of @child and stores them to @val if found. All the values
++ * in the array must be of type @proptype.
++ *
++ * Return: %0 if the property was found (success),
++ * %-EINVAL if given arguments are not valid,
++ * %-ENODATA if the property does not exist,
++ * %-EPROTO if the property type does not match @proptype,
++ * %-EOVERFLOW if the property value is out of bounds of @proptype.
++ */
++int device_read_child_property_array(struct device *dev, void *child,
++ const char *propname,
++ enum dev_prop_type proptype, void *val,
++ size_t nval)
++{
++ if (!child)
++ return -EINVAL;
++
++ if (IS_ENABLED(CONFIG_OF) && dev->of_node)
++ return of_dev_prop_read_array(child, propname, proptype,
++ val, nval);
++ else if (ACPI_COMPANION(dev))
++ return acpi_dev_prop_read_array(child, propname, proptype,
++ val, nval);
++
++ return -ENODATA;
++}
++EXPORT_SYMBOL_GPL(device_read_child_property_array);
++
++/**
++ * device_for_each_child_node - execute function for each child node of device
++ * @dev: Device to run the function for
++ * @fn: Function to run
++ * @data: Additional data to pass to the function
++ */
++int device_for_each_child_node(struct device *dev,
++ int (*fn)(struct device *dev, void *child, void *data),
++ void *data)
++{
++ if (IS_ENABLED(CONFIG_OF) && dev->of_node)
++ return of_for_each_child_node(dev, fn, data);
++
++ return acpi_for_each_child_node(dev, fn, data);
++}
++EXPORT_SYMBOL_GPL(device_for_each_child_node);
++
++static int increment_count(struct device *dev, void *child, void *data)
++{
++ *((unsigned int *)data) += 1;
++ return 0;
++}
++
++/**
++ * device_get_child_node_count - return the number of child nodes for device
++ * @dev: Device to cound the child nodes for
++ */
++unsigned int device_get_child_node_count(struct device *dev)
++{
++ unsigned int count = 0;
++
++ device_for_each_child_node(dev, increment_count, &count);
++ return count;
++}
++EXPORT_SYMBOL_GPL(device_get_child_node_count);
diff --git a/drivers/clocksource/arm_arch_timer.c b/drivers/clocksource/arm_arch_timer.c
-index 5163ec1..1bec05b 100644
+index 2133f9d..b73392b 100644
--- a/drivers/clocksource/arm_arch_timer.c
+++ b/drivers/clocksource/arm_arch_timer.c
@@ -21,6 +21,7 @@
@@ -4378,7 +4691,7 @@ index 5163ec1..1bec05b 100644
static struct clock_event_device __percpu *arch_timer_evt;
-@@ -338,8 +340,12 @@ arch_timer_detect_rate(void __iomem *cntbase, struct device_node *np)
+@@ -370,8 +372,12 @@ arch_timer_detect_rate(void __iomem *cntbase, struct device_node *np)
if (arch_timer_rate)
return;
@@ -4393,7 +4706,27 @@ index 5163ec1..1bec05b 100644
if (cntbase)
arch_timer_rate = readl_relaxed(cntbase + CNTFRQ);
else
-@@ -635,20 +641,8 @@ static void __init arch_timer_common_init(void)
+@@ -660,13 +666,14 @@ static bool __init
+ arch_timer_probed(int type, const struct of_device_id *matches)
+ {
+ struct device_node *dn;
+- bool probed = false;
++ bool probed = true;
+
+ dn = of_find_matching_node(NULL, matches);
+- if (dn && of_device_is_available(dn) && (arch_timers_present & type))
+- probed = true;
+- of_node_put(dn);
+-
++ if (dn) {
++ if (of_device_is_available(dn) && !(arch_timers_present & type))
++ probed = false;
++ of_node_put(dn);
++ }
+ return probed;
+ }
+
+@@ -687,20 +694,8 @@ static void __init arch_timer_common_init(void)
arch_timer_arch_init();
}
@@ -4415,7 +4748,7 @@ index 5163ec1..1bec05b 100644
/*
* If HYP mode is available, we know that the physical timer
* has been configured to be accessible from PL1. Use it, so
-@@ -667,13 +661,31 @@ static void __init arch_timer_init(struct device_node *np)
+@@ -719,13 +714,31 @@ static void __init arch_timer_init(struct device_node *np)
}
}
@@ -4451,7 +4784,7 @@ index 5163ec1..1bec05b 100644
static void __init arch_timer_mem_init(struct device_node *np)
{
-@@ -740,3 +752,71 @@ static void __init arch_timer_mem_init(struct device_node *np)
+@@ -792,3 +805,71 @@ static void __init arch_timer_mem_init(struct device_node *np)
}
CLOCKSOURCE_OF_DECLARE(armv7_arch_timer_mem, "arm,armv7-timer-mem",
arch_timer_mem_init);
@@ -4523,11 +4856,975 @@ index 5163ec1..1bec05b 100644
+ acpi_table_parse(ACPI_SIG_GTDT, arch_timer_acpi_init);
+}
+#endif
+diff --git a/drivers/gpio/devres.c b/drivers/gpio/devres.c
+index 954b9f6..a1f7e55 100644
+--- a/drivers/gpio/devres.c
++++ b/drivers/gpio/devres.c
+@@ -109,6 +109,40 @@ struct gpio_desc *__must_check __devm_gpiod_get_index(struct device *dev,
+ EXPORT_SYMBOL(__devm_gpiod_get_index);
+
+ /**
++ * devm_get_named_gpiod_from_child - managed dev_get_named_gpiod_from_child()
++ * @dev: GPIO consumer
++ * @child: firmware node (child of @dev)
++ * @propname: name of the firmware property
++ * @index: index of the GPIO in the property value in case of many
++ *
++ * GPIO descriptors returned from this function are automatically disposed on
++ * driver detach.
++ */
++struct gpio_desc *devm_get_named_gpiod_from_child(struct device *dev, void *child,
++ const char *propname, int index)
++{
++ struct gpio_desc **dr;
++ struct gpio_desc *desc;
++
++ dr = devres_alloc(devm_gpiod_release, sizeof(struct gpio_desc *),
++ GFP_KERNEL);
++ if (!dr)
++ return ERR_PTR(-ENOMEM);
++
++ desc = dev_get_named_gpiod_from_child(dev, child, propname, index);
++ if (IS_ERR(desc)) {
++ devres_free(dr);
++ return desc;
++ }
++
++ *dr = desc;
++ devres_add(dev, dr);
++
++ return desc;
++}
++EXPORT_SYMBOL(devm_get_named_gpiod_from_child);
++
++/**
+ * devm_gpiod_get_index_optional - Resource-managed gpiod_get_index_optional()
+ * @dev: GPIO consumer
+ * @con_id: function within the GPIO consumer
+diff --git a/drivers/gpio/gpio-sch.c b/drivers/gpio/gpio-sch.c
+index 41e91d7..99720c8 100644
+--- a/drivers/gpio/gpio-sch.c
++++ b/drivers/gpio/gpio-sch.c
+@@ -29,290 +29,221 @@
+
+ #include <linux/gpio.h>
+
+-static DEFINE_SPINLOCK(gpio_lock);
+-
+-#define CGEN (0x00)
+-#define CGIO (0x04)
+-#define CGLV (0x08)
+-
+-#define RGEN (0x20)
+-#define RGIO (0x24)
+-#define RGLV (0x28)
+-
+-static unsigned short gpio_ba;
+-
+-static int sch_gpio_core_direction_in(struct gpio_chip *gc, unsigned gpio_num)
+-{
+- u8 curr_dirs;
+- unsigned short offset, bit;
+-
+- spin_lock(&gpio_lock);
+-
+- offset = CGIO + gpio_num / 8;
+- bit = gpio_num % 8;
+-
+- curr_dirs = inb(gpio_ba + offset);
+-
+- if (!(curr_dirs & (1 << bit)))
+- outb(curr_dirs | (1 << bit), gpio_ba + offset);
++#define GEN 0x00
++#define GIO 0x04
++#define GLV 0x08
++
++struct sch_gpio {
++ struct gpio_chip chip;
++ spinlock_t lock;
++ unsigned short iobase;
++ unsigned short core_base;
++ unsigned short resume_base;
++};
+
+- spin_unlock(&gpio_lock);
+- return 0;
+-}
++#define to_sch_gpio(c) container_of(c, struct sch_gpio, chip)
+
+-static int sch_gpio_core_get(struct gpio_chip *gc, unsigned gpio_num)
++static unsigned sch_gpio_offset(struct sch_gpio *sch, unsigned gpio,
++ unsigned reg)
+ {
+- int res;
+- unsigned short offset, bit;
++ unsigned base = 0;
+
+- offset = CGLV + gpio_num / 8;
+- bit = gpio_num % 8;
++ if (gpio >= sch->resume_base) {
++ gpio -= sch->resume_base;
++ base += 0x20;
++ }
+
+- res = !!(inb(gpio_ba + offset) & (1 << bit));
+- return res;
++ return base + reg + gpio / 8;
+ }
+
+-static void sch_gpio_core_set(struct gpio_chip *gc, unsigned gpio_num, int val)
++static unsigned sch_gpio_bit(struct sch_gpio *sch, unsigned gpio)
+ {
+- u8 curr_vals;
+- unsigned short offset, bit;
+-
+- spin_lock(&gpio_lock);
+-
+- offset = CGLV + gpio_num / 8;
+- bit = gpio_num % 8;
+-
+- curr_vals = inb(gpio_ba + offset);
+-
+- if (val)
+- outb(curr_vals | (1 << bit), gpio_ba + offset);
+- else
+- outb((curr_vals & ~(1 << bit)), gpio_ba + offset);
+- spin_unlock(&gpio_lock);
++ if (gpio >= sch->resume_base)
++ gpio -= sch->resume_base;
++ return gpio % 8;
+ }
+
+-static int sch_gpio_core_direction_out(struct gpio_chip *gc,
+- unsigned gpio_num, int val)
++static void sch_gpio_enable(struct sch_gpio *sch, unsigned gpio)
+ {
+- u8 curr_dirs;
+ unsigned short offset, bit;
++ u8 enable;
+
+- spin_lock(&gpio_lock);
++ spin_lock(&sch->lock);
+
+- offset = CGIO + gpio_num / 8;
+- bit = gpio_num % 8;
+-
+- curr_dirs = inb(gpio_ba + offset);
+- if (curr_dirs & (1 << bit))
+- outb(curr_dirs & ~(1 << bit), gpio_ba + offset);
++ offset = sch_gpio_offset(sch, gpio, GEN);
++ bit = sch_gpio_bit(sch, gpio);
+
+- spin_unlock(&gpio_lock);
++ enable = inb(sch->iobase + offset);
++ if (!(enable & (1 << bit)))
++ outb(enable | (1 << bit), sch->iobase + offset);
+
+- /*
+- * according to the datasheet, writing to the level register has no
+- * effect when GPIO is programmed as input.
+- * Actually the the level register is read-only when configured as input.
+- * Thus presetting the output level before switching to output is _NOT_ possible.
+- * Hence we set the level after configuring the GPIO as output.
+- * But we cannot prevent a short low pulse if direction is set to high
+- * and an external pull-up is connected.
+- */
+- sch_gpio_core_set(gc, gpio_num, val);
+- return 0;
++ spin_unlock(&sch->lock);
+ }
+
+-static struct gpio_chip sch_gpio_core = {
+- .label = "sch_gpio_core",
+- .owner = THIS_MODULE,
+- .direction_input = sch_gpio_core_direction_in,
+- .get = sch_gpio_core_get,
+- .direction_output = sch_gpio_core_direction_out,
+- .set = sch_gpio_core_set,
+-};
+-
+-static int sch_gpio_resume_direction_in(struct gpio_chip *gc,
+- unsigned gpio_num)
++static int sch_gpio_direction_in(struct gpio_chip *gc, unsigned gpio_num)
+ {
++ struct sch_gpio *sch = to_sch_gpio(gc);
+ u8 curr_dirs;
+ unsigned short offset, bit;
+
+- spin_lock(&gpio_lock);
++ spin_lock(&sch->lock);
+
+- offset = RGIO + gpio_num / 8;
+- bit = gpio_num % 8;
++ offset = sch_gpio_offset(sch, gpio_num, GIO);
++ bit = sch_gpio_bit(sch, gpio_num);
+
+- curr_dirs = inb(gpio_ba + offset);
++ curr_dirs = inb(sch->iobase + offset);
+
+ if (!(curr_dirs & (1 << bit)))
+- outb(curr_dirs | (1 << bit), gpio_ba + offset);
++ outb(curr_dirs | (1 << bit), sch->iobase + offset);
+
+- spin_unlock(&gpio_lock);
++ spin_unlock(&sch->lock);
+ return 0;
+ }
+
+-static int sch_gpio_resume_get(struct gpio_chip *gc, unsigned gpio_num)
++static int sch_gpio_get(struct gpio_chip *gc, unsigned gpio_num)
+ {
++ struct sch_gpio *sch = to_sch_gpio(gc);
++ int res;
+ unsigned short offset, bit;
+
+- offset = RGLV + gpio_num / 8;
+- bit = gpio_num % 8;
++ offset = sch_gpio_offset(sch, gpio_num, GLV);
++ bit = sch_gpio_bit(sch, gpio_num);
++
++ res = !!(inb(sch->iobase + offset) & (1 << bit));
+
+- return !!(inb(gpio_ba + offset) & (1 << bit));
++ return res;
+ }
+
+-static void sch_gpio_resume_set(struct gpio_chip *gc,
+- unsigned gpio_num, int val)
++static void sch_gpio_set(struct gpio_chip *gc, unsigned gpio_num, int val)
+ {
++ struct sch_gpio *sch = to_sch_gpio(gc);
+ u8 curr_vals;
+ unsigned short offset, bit;
+
+- spin_lock(&gpio_lock);
++ spin_lock(&sch->lock);
+
+- offset = RGLV + gpio_num / 8;
+- bit = gpio_num % 8;
++ offset = sch_gpio_offset(sch, gpio_num, GLV);
++ bit = sch_gpio_bit(sch, gpio_num);
+
+- curr_vals = inb(gpio_ba + offset);
++ curr_vals = inb(sch->iobase + offset);
+
+ if (val)
+- outb(curr_vals | (1 << bit), gpio_ba + offset);
++ outb(curr_vals | (1 << bit), sch->iobase + offset);
+ else
+- outb((curr_vals & ~(1 << bit)), gpio_ba + offset);
++ outb((curr_vals & ~(1 << bit)), sch->iobase + offset);
+
+- spin_unlock(&gpio_lock);
++ spin_unlock(&sch->lock);
+ }
+
+-static int sch_gpio_resume_direction_out(struct gpio_chip *gc,
+- unsigned gpio_num, int val)
++static int sch_gpio_direction_out(struct gpio_chip *gc, unsigned gpio_num,
++ int val)
+ {
++ struct sch_gpio *sch = to_sch_gpio(gc);
+ u8 curr_dirs;
+ unsigned short offset, bit;
+
+- offset = RGIO + gpio_num / 8;
+- bit = gpio_num % 8;
++ spin_lock(&sch->lock);
+
+- spin_lock(&gpio_lock);
++ offset = sch_gpio_offset(sch, gpio_num, GIO);
++ bit = sch_gpio_bit(sch, gpio_num);
+
+- curr_dirs = inb(gpio_ba + offset);
++ curr_dirs = inb(sch->iobase + offset);
+ if (curr_dirs & (1 << bit))
+- outb(curr_dirs & ~(1 << bit), gpio_ba + offset);
++ outb(curr_dirs & ~(1 << bit), sch->iobase + offset);
+
+- spin_unlock(&gpio_lock);
++ spin_unlock(&sch->lock);
+
+ /*
+- * according to the datasheet, writing to the level register has no
+- * effect when GPIO is programmed as input.
+- * Actually the the level register is read-only when configured as input.
+- * Thus presetting the output level before switching to output is _NOT_ possible.
+- * Hence we set the level after configuring the GPIO as output.
+- * But we cannot prevent a short low pulse if direction is set to high
+- * and an external pull-up is connected.
+- */
+- sch_gpio_resume_set(gc, gpio_num, val);
++ * according to the datasheet, writing to the level register has no
++ * effect when GPIO is programmed as input.
++ * Actually the the level register is read-only when configured as input.
++ * Thus presetting the output level before switching to output is _NOT_ possible.
++ * Hence we set the level after configuring the GPIO as output.
++ * But we cannot prevent a short low pulse if direction is set to high
++ * and an external pull-up is connected.
++ */
++ sch_gpio_set(gc, gpio_num, val);
+ return 0;
+ }
+
+-static struct gpio_chip sch_gpio_resume = {
+- .label = "sch_gpio_resume",
++static struct gpio_chip sch_gpio_chip = {
++ .label = "sch_gpio",
+ .owner = THIS_MODULE,
+- .direction_input = sch_gpio_resume_direction_in,
+- .get = sch_gpio_resume_get,
+- .direction_output = sch_gpio_resume_direction_out,
+- .set = sch_gpio_resume_set,
++ .direction_input = sch_gpio_direction_in,
++ .get = sch_gpio_get,
++ .direction_output = sch_gpio_direction_out,
++ .set = sch_gpio_set,
+ };
+
+ static int sch_gpio_probe(struct platform_device *pdev)
+ {
++ struct sch_gpio *sch;
+ struct resource *res;
+- int err, id;
+
+- id = pdev->id;
+- if (!id)
+- return -ENODEV;
++ sch = devm_kzalloc(&pdev->dev, sizeof(*sch), GFP_KERNEL);
++ if (!sch)
++ return -ENOMEM;
+
+ res = platform_get_resource(pdev, IORESOURCE_IO, 0);
+ if (!res)
+ return -EBUSY;
+
+- if (!request_region(res->start, resource_size(res), pdev->name))
++ if (!devm_request_region(&pdev->dev, res->start, resource_size(res),
++ pdev->name))
+ return -EBUSY;
+
+- gpio_ba = res->start;
++ spin_lock_init(&sch->lock);
++ sch->iobase = res->start;
++ sch->chip = sch_gpio_chip;
++ sch->chip.label = dev_name(&pdev->dev);
++ sch->chip.dev = &pdev->dev;
+
+- switch (id) {
++ switch (pdev->id) {
+ case PCI_DEVICE_ID_INTEL_SCH_LPC:
+- sch_gpio_core.base = 0;
+- sch_gpio_core.ngpio = 10;
+- sch_gpio_resume.base = 10;
+- sch_gpio_resume.ngpio = 4;
++ sch->core_base = 0;
++ sch->resume_base = 10;
++ sch->chip.ngpio = 14;
++
+ /*
+ * GPIO[6:0] enabled by default
+ * GPIO7 is configured by the CMC as SLPIOVR
+ * Enable GPIO[9:8] core powered gpios explicitly
+ */
+- outb(0x3, gpio_ba + CGEN + 1);
++ sch_gpio_enable(sch, 8);
++ sch_gpio_enable(sch, 9);
+ /*
+ * SUS_GPIO[2:0] enabled by default
+ * Enable SUS_GPIO3 resume powered gpio explicitly
+ */
+- outb(0x8, gpio_ba + RGEN);
++ sch_gpio_enable(sch, 13);
+ break;
+
+ case PCI_DEVICE_ID_INTEL_ITC_LPC:
+- sch_gpio_core.base = 0;
+- sch_gpio_core.ngpio = 5;
+- sch_gpio_resume.base = 5;
+- sch_gpio_resume.ngpio = 9;
++ sch->core_base = 0;
++ sch->resume_base = 5;
++ sch->chip.ngpio = 14;
+ break;
+
+ case PCI_DEVICE_ID_INTEL_CENTERTON_ILB:
+- sch_gpio_core.base = 0;
+- sch_gpio_core.ngpio = 21;
+- sch_gpio_resume.base = 21;
+- sch_gpio_resume.ngpio = 9;
++ sch->core_base = 0;
++ sch->resume_base = 21;
++ sch->chip.ngpio = 30;
+ break;
+
+ default:
+- err = -ENODEV;
+- goto err_sch_gpio_core;
++ return -ENODEV;
+ }
+
+- sch_gpio_core.dev = &pdev->dev;
+- sch_gpio_resume.dev = &pdev->dev;
+-
+- err = gpiochip_add(&sch_gpio_core);
+- if (err < 0)
+- goto err_sch_gpio_core;
++ platform_set_drvdata(pdev, sch);
+
+- err = gpiochip_add(&sch_gpio_resume);
+- if (err < 0)
+- goto err_sch_gpio_resume;
+-
+- return 0;
+-
+-err_sch_gpio_resume:
+- gpiochip_remove(&sch_gpio_core);
+-
+-err_sch_gpio_core:
+- release_region(res->start, resource_size(res));
+- gpio_ba = 0;
+-
+- return err;
++ return gpiochip_add(&sch->chip);
+ }
+
+ static int sch_gpio_remove(struct platform_device *pdev)
+ {
+- struct resource *res;
+- if (gpio_ba) {
+-
+- gpiochip_remove(&sch_gpio_core);
+- gpiochip_remove(&sch_gpio_resume);
+-
+- res = platform_get_resource(pdev, IORESOURCE_IO, 0);
+-
+- release_region(res->start, resource_size(res));
+- gpio_ba = 0;
+- }
++ struct sch_gpio *sch = platform_get_drvdata(pdev);
+
++ gpiochip_remove(&sch->chip);
+ return 0;
+ }
+
+diff --git a/drivers/gpio/gpiolib-acpi.c b/drivers/gpio/gpiolib-acpi.c
+index 05c6275..8aa6ca4 100644
+--- a/drivers/gpio/gpiolib-acpi.c
++++ b/drivers/gpio/gpiolib-acpi.c
+@@ -290,6 +290,7 @@ void acpi_gpiochip_free_interrupts(struct gpio_chip *chip)
+ struct acpi_gpio_lookup {
+ struct acpi_gpio_info info;
+ int index;
++ int pin_index;
+ struct gpio_desc *desc;
+ int n;
+ };
+@@ -303,13 +304,24 @@ static int acpi_find_gpio(struct acpi_resource *ares, void *data)
+
+ if (lookup->n++ == lookup->index && !lookup->desc) {
+ const struct acpi_resource_gpio *agpio = &ares->data.gpio;
++ int pin_index = lookup->pin_index;
++
++ if (pin_index >= agpio->pin_table_length)
++ return 1;
+
+ lookup->desc = acpi_get_gpiod(agpio->resource_source.string_ptr,
+- agpio->pin_table[0]);
++ agpio->pin_table[pin_index]);
+ lookup->info.gpioint =
+ agpio->connection_type == ACPI_RESOURCE_GPIO_TYPE_INT;
+- lookup->info.active_low =
+- agpio->polarity == ACPI_ACTIVE_LOW;
++
++ /*
++ * ActiveLow is only specified for GpioInt resource. If
++ * GpioIo is used then the only way to set the flag is
++ * to use _DSD "gpios" property.
++ */
++ if (lookup->info.gpioint)
++ lookup->info.active_low =
++ agpio->polarity == ACPI_ACTIVE_LOW;
+ }
+
+ return 1;
+@@ -317,40 +329,75 @@ static int acpi_find_gpio(struct acpi_resource *ares, void *data)
+
+ /**
+ * acpi_get_gpiod_by_index() - get a GPIO descriptor from device resources
+- * @dev: pointer to a device to get GPIO from
++ * @adev: pointer to a ACPI device to get GPIO from
++ * @propname: Property name of the GPIO (optional)
+ * @index: index of GpioIo/GpioInt resource (starting from %0)
+ * @info: info pointer to fill in (optional)
+ *
+- * Function goes through ACPI resources for @dev and based on @index looks
++ * Function goes through ACPI resources for @adev and based on @index looks
+ * up a GpioIo/GpioInt resource, translates it to the Linux GPIO descriptor,
+ * and returns it. @index matches GpioIo/GpioInt resources only so if there
+ * are total %3 GPIO resources, the index goes from %0 to %2.
+ *
++ * If @propname is specified the GPIO is looked using device property. In
++ * that case @index is used to select the GPIO entry in the property value
++ * (in case of multiple).
++ *
+ * If the GPIO cannot be translated or there is an error an ERR_PTR is
+ * returned.
+ *
+ * Note: if the GPIO resource has multiple entries in the pin list, this
+ * function only returns the first.
+ */
+-struct gpio_desc *acpi_get_gpiod_by_index(struct device *dev, int index,
++struct gpio_desc *acpi_get_gpiod_by_index(struct acpi_device *adev,
++ const char *propname, int index,
+ struct acpi_gpio_info *info)
+ {
+ struct acpi_gpio_lookup lookup;
+ struct list_head resource_list;
+- struct acpi_device *adev;
+- acpi_handle handle;
++ bool active_low = false;
+ int ret;
+
+- if (!dev)
+- return ERR_PTR(-EINVAL);
+-
+- handle = ACPI_HANDLE(dev);
+- if (!handle || acpi_bus_get_device(handle, &adev))
++ if (!adev)
+ return ERR_PTR(-ENODEV);
+
+ memset(&lookup, 0, sizeof(lookup));
+ lookup.index = index;
+
++ if (propname) {
++ struct acpi_reference_args args;
++
++ dev_dbg(&adev->dev, "GPIO: looking up %s\n", propname);
++
++ memset(&args, 0, sizeof(args));
++ ret = acpi_dev_get_property_reference(adev, propname, NULL,
++ index, &args);
++ if (ret)
++ return ERR_PTR(ret);
++
++ /*
++ * The property was found and resolved so need to
++ * lookup the GPIO based on returned args instead.
++ */
++ adev = args.adev;
++ if (args.nargs >= 2) {
++ lookup.index = args.args[0];
++ lookup.pin_index = args.args[1];
++ /*
++ * 3rd argument, if present is used to
++ * specify active_low.
++ */
++ if (args.nargs >= 3)
++ active_low = !!args.args[2];
++ }
++
++ dev_dbg(&adev->dev, "GPIO: _DSD returned %s %zd %llu %llu %llu\n",
++ dev_name(&adev->dev), args.nargs,
++ args.args[0], args.args[1], args.args[2]);
++ } else {
++ dev_dbg(&adev->dev, "GPIO: looking up %d in _CRS\n", index);
++ }
++
+ INIT_LIST_HEAD(&resource_list);
+ ret = acpi_dev_get_resources(adev, &resource_list, acpi_find_gpio,
+ &lookup);
+@@ -359,8 +406,11 @@ struct gpio_desc *acpi_get_gpiod_by_index(struct device *dev, int index,
+
+ acpi_dev_free_resource_list(&resource_list);
+
+- if (lookup.desc && info)
++ if (lookup.desc && info) {
+ *info = lookup.info;
++ if (active_low)
++ info->active_low = active_low;
++ }
+
+ return lookup.desc ? lookup.desc : ERR_PTR(-ENOENT);
+ }
+diff --git a/drivers/gpio/gpiolib.c b/drivers/gpio/gpiolib.c
+index e8e98ca..0fa5f79 100644
+--- a/drivers/gpio/gpiolib.c
++++ b/drivers/gpio/gpiolib.c
+@@ -1505,14 +1505,36 @@ static struct gpio_desc *acpi_find_gpio(struct device *dev, const char *con_id,
+ unsigned int idx,
+ enum gpio_lookup_flags *flags)
+ {
++ static const char * const suffixes[] = { "gpios", "gpio" };
++ struct acpi_device *adev = ACPI_COMPANION(dev);
+ struct acpi_gpio_info info;
+ struct gpio_desc *desc;
++ char propname[32];
++ int i;
+
+- desc = acpi_get_gpiod_by_index(dev, idx, &info);
+- if (IS_ERR(desc))
+- return desc;
++ /* Try first from _DSD */
++ for (i = 0; i < ARRAY_SIZE(suffixes); i++) {
++ if (con_id && strcmp(con_id, "gpios")) {
++ snprintf(propname, sizeof(propname), "%s-%s",
++ con_id, suffixes[i]);
++ } else {
++ snprintf(propname, sizeof(propname), "%s",
++ suffixes[i]);
++ }
++
++ desc = acpi_get_gpiod_by_index(adev, propname, 0, &info);
++ if (!IS_ERR(desc) || (PTR_ERR(desc) == -EPROBE_DEFER))
++ break;
++ }
+
+- if (info.gpioint && info.active_low)
++ /* Then from plain _CRS GPIOs */
++ if (IS_ERR(desc)) {
++ desc = acpi_get_gpiod_by_index(adev, NULL, idx, &info);
++ if (IS_ERR(desc))
++ return desc;
++ }
++
++ if (info.active_low)
+ *flags |= GPIO_ACTIVE_LOW;
+
+ return desc;
+@@ -1713,6 +1735,62 @@ struct gpio_desc *__must_check __gpiod_get_index(struct device *dev,
+ EXPORT_SYMBOL_GPL(__gpiod_get_index);
+
+ /**
++ * dev_get_named_gpiod_from_child - obtain a GPIO from firmware node
++ * @dev: parent device
++ * @child: firmware node (child of @dev)
++ * @propname: name of the firmware property
++ * @idx: index of the GPIO in the property value in case of many
++ *
++ * This function can be used for drivers that get their configuration
++ * from firmware in such a way that some properties are described as child
++ * nodes for the parent device in DT or ACPI.
++ *
++ * Function properly finds the corresponding GPIO using whatever is the
++ * underlying firmware interface and then makes sure that the GPIO
++ * descriptor is requested before it is returned to the caller.
++ *
++ * In case of error an ERR_PTR() is returned.
++ */
++struct gpio_desc *dev_get_named_gpiod_from_child(struct device *dev, void *child,
++ const char *propname, int index)
++{
++ struct gpio_desc *desc = ERR_PTR(-ENODEV);
++ bool active_low = false;
++ int ret;
++
++ if (!child)
++ return ERR_PTR(-EINVAL);
++
++ if (IS_ENABLED(CONFIG_OF) && dev->of_node) {
++ enum of_gpio_flags flags;
++
++ desc = of_get_named_gpiod_flags(child, propname, index, &flags);
++ if (!IS_ERR(desc))
++ active_low = flags & OF_GPIO_ACTIVE_LOW;
++ } else if (ACPI_COMPANION(dev)) {
++ struct acpi_gpio_info info;
++
++ desc = acpi_get_gpiod_by_index(child, propname, index, &info);
++ if (!IS_ERR(desc))
++ active_low = info.active_low;
++ }
++
++ if (IS_ERR(desc))
++ return desc;
++
++ ret = gpiod_request(desc, NULL);
++ if (ret)
++ return ERR_PTR(ret);
++
++ /* Only value flag can be set from both DT and ACPI is active_low */
++ if (active_low)
++ set_bit(FLAG_ACTIVE_LOW, &desc->flags);
++
++ return desc;
++}
++EXPORT_SYMBOL_GPL(dev_get_named_gpiod_from_child);
++
++/**
+ * gpiod_get_index_optional - obtain an optional GPIO from a multi-index GPIO
+ * function
+ * @dev: GPIO consumer, can be NULL for system-global GPIOs
+diff --git a/drivers/gpio/gpiolib.h b/drivers/gpio/gpiolib.h
+index 9db2b6a..e3a5211 100644
+--- a/drivers/gpio/gpiolib.h
++++ b/drivers/gpio/gpiolib.h
+@@ -34,7 +34,8 @@ void acpi_gpiochip_remove(struct gpio_chip *chip);
+ void acpi_gpiochip_request_interrupts(struct gpio_chip *chip);
+ void acpi_gpiochip_free_interrupts(struct gpio_chip *chip);
+
+-struct gpio_desc *acpi_get_gpiod_by_index(struct device *dev, int index,
++struct gpio_desc *acpi_get_gpiod_by_index(struct acpi_device *adev,
++ const char *propname, int index,
+ struct acpi_gpio_info *info);
+ #else
+ static inline void acpi_gpiochip_add(struct gpio_chip *chip) { }
+@@ -47,8 +48,8 @@ static inline void
+ acpi_gpiochip_free_interrupts(struct gpio_chip *chip) { }
+
+ static inline struct gpio_desc *
+-acpi_get_gpiod_by_index(struct device *dev, int index,
+- struct acpi_gpio_info *info)
++acpi_get_gpiod_by_index(struct acpi_device *adev, const char *propname,
++ int index, struct acpi_gpio_info *info)
+ {
+ return ERR_PTR(-ENOSYS);
+ }
+diff --git a/drivers/input/keyboard/gpio_keys_polled.c b/drivers/input/keyboard/gpio_keys_polled.c
+index 432d363..3563850 100644
+--- a/drivers/input/keyboard/gpio_keys_polled.c
++++ b/drivers/input/keyboard/gpio_keys_polled.c
+@@ -23,10 +23,9 @@
+ #include <linux/ioport.h>
+ #include <linux/platform_device.h>
+ #include <linux/gpio.h>
++#include <linux/gpio/consumer.h>
+ #include <linux/gpio_keys.h>
+-#include <linux/of.h>
+-#include <linux/of_platform.h>
+-#include <linux/of_gpio.h>
++#include <linux/property.h>
+
+ #define DRV_NAME "gpio-keys-polled"
+
+@@ -51,15 +50,14 @@ static void gpio_keys_polled_check_state(struct input_dev *input,
+ int state;
+
+ if (bdata->can_sleep)
+- state = !!gpio_get_value_cansleep(button->gpio);
++ state = !!gpiod_get_value_cansleep(button->gpiod);
+ else
+- state = !!gpio_get_value(button->gpio);
++ state = !!gpiod_get_value(button->gpiod);
+
+ if (state != bdata->last_state) {
+ unsigned int type = button->type ?: EV_KEY;
+
+- input_event(input, type, button->code,
+- !!(state ^ button->active_low));
++ input_event(input, type, button->code, state);
+ input_sync(input);
+ bdata->count = 0;
+ bdata->last_state = state;
+@@ -102,21 +100,57 @@ static void gpio_keys_polled_close(struct input_polled_dev *dev)
+ pdata->disable(bdev->dev);
+ }
+
+-#ifdef CONFIG_OF
++static int gpio_keys_polled_get_button(struct device *dev, void *child,
++ void *data)
++{
++ struct gpio_keys_platform_data *pdata = data;
++ struct gpio_keys_button *button;
++ struct gpio_desc *desc;
++
++ desc = devm_get_named_gpiod_from_child(dev, child, "gpios", 0);
++ if (IS_ERR(desc)) {
++ int err = PTR_ERR(desc);
++
++ if (err != -EPROBE_DEFER)
++ dev_err(dev, "Failed to get gpio flags, error: %d\n",
++ err);
++ return err;
++ }
++
++ button = &pdata->buttons[pdata->nbuttons++];
++ button->gpiod = desc;
++
++ if (device_child_property_read_u32(dev, child, "linux,code",
++ &button->code)) {
++ dev_err(dev, "Button without keycode: %d\n",
++ pdata->nbuttons - 1);
++ return -EINVAL;
++ }
++
++ device_child_property_read_string(dev, child, "label", &button->desc);
++
++ if (device_child_property_read_u32(dev, child, "linux,input-type",
++ &button->type))
++ button->type = EV_KEY;
++
++ button->wakeup = !device_get_child_property(dev, child,
++ "gpio-key,wakeup", NULL);
++
++ if (device_child_property_read_u32(dev, child, "debounce-interval",
++ &button->debounce_interval))
++ button->debounce_interval = 5;
++
++ return 0;
++}
++
+ static struct gpio_keys_platform_data *gpio_keys_polled_get_devtree_pdata(struct device *dev)
+ {
+- struct device_node *node, *pp;
+ struct gpio_keys_platform_data *pdata;
+ struct gpio_keys_button *button;
+ int error;
+ int nbuttons;
+- int i;
+-
+- node = dev->of_node;
+- if (!node)
+- return NULL;
+
+- nbuttons = of_get_child_count(node);
++ nbuttons = device_get_child_node_count(dev);
+ if (nbuttons == 0)
+ return NULL;
+
+@@ -126,54 +160,14 @@ static struct gpio_keys_platform_data *gpio_keys_polled_get_devtree_pdata(struct
+ return ERR_PTR(-ENOMEM);
+
+ pdata->buttons = (struct gpio_keys_button *)(pdata + 1);
+- pdata->nbuttons = nbuttons;
+
+- pdata->rep = !!of_get_property(node, "autorepeat", NULL);
+- of_property_read_u32(node, "poll-interval", &pdata->poll_interval);
++ pdata->rep = !device_get_property(dev, "autorepeat", NULL);
++ device_property_read_u32(dev, "poll-interval", &pdata->poll_interval);
+
+- i = 0;
+- for_each_child_of_node(node, pp) {
+- int gpio;
+- enum of_gpio_flags flags;
+-
+- if (!of_find_property(pp, "gpios", NULL)) {
+- pdata->nbuttons--;
+- dev_warn(dev, "Found button without gpios\n");
+- continue;
+- }
+-
+- gpio = of_get_gpio_flags(pp, 0, &flags);
+- if (gpio < 0) {
+- error = gpio;
+- if (error != -EPROBE_DEFER)
+- dev_err(dev,
+- "Failed to get gpio flags, error: %d\n",
+- error);
+- return ERR_PTR(error);
+- }
+-
+- button = &pdata->buttons[i++];
+-
+- button->gpio = gpio;
+- button->active_low = flags & OF_GPIO_ACTIVE_LOW;
+-
+- if (of_property_read_u32(pp, "linux,code", &button->code)) {
+- dev_err(dev, "Button without keycode: 0x%x\n",
+- button->gpio);
+- return ERR_PTR(-EINVAL);
+- }
+-
+- button->desc = of_get_property(pp, "label", NULL);
+-
+- if (of_property_read_u32(pp, "linux,input-type", &button->type))
+- button->type = EV_KEY;
+-
+- button->wakeup = !!of_get_property(pp, "gpio-key,wakeup", NULL);
+-
+- if (of_property_read_u32(pp, "debounce-interval",
+- &button->debounce_interval))
+- button->debounce_interval = 5;
+- }
++ error = device_for_each_child_node(dev, gpio_keys_polled_get_button,
++ pdata);
++ if (error)
++ return ERR_PTR(error);
+
+ if (pdata->nbuttons == 0)
+ return ERR_PTR(-EINVAL);
+@@ -187,14 +181,11 @@ static const struct of_device_id gpio_keys_polled_of_match[] = {
+ };
+ MODULE_DEVICE_TABLE(of, gpio_keys_polled_of_match);
+
+-#else
+-
+-static inline struct gpio_keys_platform_data *
+-gpio_keys_polled_get_devtree_pdata(struct device *dev)
+-{
+- return NULL;
+-}
+-#endif
++static const struct acpi_device_id gpio_keys_polled_acpi_match[] = {
++ { "PRP0001" }, /* Device Tree shoehorned into ACPI */
++ { },
++};
++MODULE_DEVICE_TABLE(acpi, gpio_keys_polled_acpi_match);
+
+ static int gpio_keys_polled_probe(struct platform_device *pdev)
+ {
+@@ -259,7 +250,6 @@ static int gpio_keys_polled_probe(struct platform_device *pdev)
+ for (i = 0; i < pdata->nbuttons; i++) {
+ struct gpio_keys_button *button = &pdata->buttons[i];
+ struct gpio_keys_button_data *bdata = &bdev->data[i];
+- unsigned int gpio = button->gpio;
+ unsigned int type = button->type ?: EV_KEY;
+
+ if (button->wakeup) {
+@@ -267,15 +257,31 @@ static int gpio_keys_polled_probe(struct platform_device *pdev)
+ return -EINVAL;
+ }
+
+- error = devm_gpio_request_one(&pdev->dev, gpio, GPIOF_IN,
+- button->desc ? : DRV_NAME);
+- if (error) {
+- dev_err(dev, "unable to claim gpio %u, err=%d\n",
+- gpio, error);
+- return error;
++ /*
++ * Legacy GPIO number so request the GPIO here and
++ * convert it to descriptor.
++ */
++ if (!button->gpiod && gpio_is_valid(button->gpio)) {
++ unsigned flags = 0;
++
++ if (button->active_low)
++ flags |= GPIOF_ACTIVE_LOW;
++
++ error = devm_gpio_request_one(&pdev->dev, button->gpio,
++ flags, button->desc ? : DRV_NAME);
++ if (error) {
++ dev_err(dev, "unable to claim gpio %u, err=%d\n",
++ button->gpio, error);
++ return error;
++ }
++
++ button->gpiod = gpio_to_desc(button->gpio);
+ }
+
+- bdata->can_sleep = gpio_cansleep(gpio);
++ if (IS_ERR(button->gpiod))
++ return PTR_ERR(button->gpiod);
++
++ bdata->can_sleep = gpiod_cansleep(button->gpiod);
+ bdata->last_state = -1;
+ bdata->threshold = DIV_ROUND_UP(button->debounce_interval,
+ pdata->poll_interval);
+@@ -308,7 +314,8 @@ static struct platform_driver gpio_keys_polled_driver = {
+ .driver = {
+ .name = DRV_NAME,
+ .owner = THIS_MODULE,
+- .of_match_table = of_match_ptr(gpio_keys_polled_of_match),
++ .of_match_table = gpio_keys_polled_of_match,
++ .acpi_match_table = gpio_keys_polled_acpi_match,
+ },
+ };
+ module_platform_driver(gpio_keys_polled_driver);
diff --git a/drivers/irqchip/irq-gic-v3.c b/drivers/irqchip/irq-gic-v3.c
-index a0698b4..d2da911 100644
+index aa17ae8..d330dab 100644
--- a/drivers/irqchip/irq-gic-v3.c
+++ b/drivers/irqchip/irq-gic-v3.c
-@@ -490,9 +490,19 @@ static void gic_raise_softirq(const struct cpumask *mask, unsigned int irq)
+@@ -506,9 +506,19 @@ static void gic_raise_softirq(const struct cpumask *mask, unsigned int irq)
isb();
}
@@ -4548,7 +5845,7 @@ index a0698b4..d2da911 100644
}
diff --git a/drivers/irqchip/irq-gic.c b/drivers/irqchip/irq-gic.c
-index dda6dbc..5d9bdd3 100644
+index 38493ff..26e6773 100644
--- a/drivers/irqchip/irq-gic.c
+++ b/drivers/irqchip/irq-gic.c
@@ -33,12 +33,14 @@
@@ -4566,7 +5863,7 @@ index dda6dbc..5d9bdd3 100644
#include <asm/cputype.h>
#include <asm/irq.h>
-@@ -622,6 +624,13 @@ static void gic_raise_softirq(const struct cpumask *mask, unsigned int irq)
+@@ -641,6 +643,13 @@ static void gic_raise_softirq(const struct cpumask *mask, unsigned int irq)
raw_spin_unlock_irqrestore(&irq_controller_lock, flags);
}
@@ -4580,7 +5877,7 @@ index dda6dbc..5d9bdd3 100644
#endif
#ifdef CONFIG_BL_SWITCHER
-@@ -977,6 +986,9 @@ void __init gic_init_bases(unsigned int gic_nr, int irq_start,
+@@ -996,6 +1005,9 @@ void __init gic_init_bases(unsigned int gic_nr, int irq_start,
#ifdef CONFIG_SMP
set_smp_cross_call(gic_raise_softirq);
register_cpu_notifier(&gic_cpu_notifier);
@@ -4590,7 +5887,7 @@ index dda6dbc..5d9bdd3 100644
#endif
set_handle_irq(gic_handle_irq);
}
-@@ -1029,3 +1041,107 @@ IRQCHIP_DECLARE(msm_8660_qgic, "qcom,msm-8660-qgic", gic_of_init);
+@@ -1048,3 +1060,107 @@ IRQCHIP_DECLARE(msm_8660_qgic, "qcom,msm-8660-qgic", gic_of_init);
IRQCHIP_DECLARE(msm_qgic2, "qcom,msm-qgic2", gic_of_init);
#endif
@@ -4717,11 +6014,470 @@ index 0fe2f71..9106c6d 100644
+
+ acpi_gic_init();
}
+diff --git a/drivers/leds/leds-gpio.c b/drivers/leds/leds-gpio.c
+index 57ff20f..681efd5 100644
+--- a/drivers/leds/leds-gpio.c
++++ b/drivers/leds/leds-gpio.c
+@@ -13,22 +13,20 @@
+ #include <linux/kernel.h>
+ #include <linux/platform_device.h>
+ #include <linux/gpio.h>
++#include <linux/gpio/consumer.h>
+ #include <linux/leds.h>
+-#include <linux/of.h>
+-#include <linux/of_platform.h>
+-#include <linux/of_gpio.h>
+ #include <linux/slab.h>
+ #include <linux/workqueue.h>
+ #include <linux/module.h>
+ #include <linux/err.h>
++#include <linux/property.h>
+
+ struct gpio_led_data {
+ struct led_classdev cdev;
+- unsigned gpio;
++ struct gpio_desc *gpiod;
+ struct work_struct work;
+ u8 new_level;
+ u8 can_sleep;
+- u8 active_low;
+ u8 blinking;
+ int (*platform_gpio_blink_set)(unsigned gpio, int state,
+ unsigned long *delay_on, unsigned long *delay_off);
+@@ -40,12 +38,16 @@ static void gpio_led_work(struct work_struct *work)
+ container_of(work, struct gpio_led_data, work);
+
+ if (led_dat->blinking) {
+- led_dat->platform_gpio_blink_set(led_dat->gpio,
+- led_dat->new_level,
+- NULL, NULL);
++ int gpio = desc_to_gpio(led_dat->gpiod);
++ int level = led_dat->new_level;
++
++ if (gpiod_is_active_low(led_dat->gpiod))
++ level = !level;
++
++ led_dat->platform_gpio_blink_set(gpio, level, NULL, NULL);
+ led_dat->blinking = 0;
+ } else
+- gpio_set_value_cansleep(led_dat->gpio, led_dat->new_level);
++ gpiod_set_value_cansleep(led_dat->gpiod, led_dat->new_level);
+ }
+
+ static void gpio_led_set(struct led_classdev *led_cdev,
+@@ -60,9 +62,6 @@ static void gpio_led_set(struct led_classdev *led_cdev,
+ else
+ level = 1;
+
+- if (led_dat->active_low)
+- level = !level;
+-
+ /* Setting GPIOs with I2C/etc requires a task context, and we don't
+ * seem to have a reliable way to know if we're already in one; so
+ * let's just assume the worst.
+@@ -72,11 +71,16 @@ static void gpio_led_set(struct led_classdev *led_cdev,
+ schedule_work(&led_dat->work);
+ } else {
+ if (led_dat->blinking) {
+- led_dat->platform_gpio_blink_set(led_dat->gpio, level,
+- NULL, NULL);
++ int gpio = desc_to_gpio(led_dat->gpiod);
++
++ if (gpiod_is_active_low(led_dat->gpiod))
++ level = !level;
++
++ led_dat->platform_gpio_blink_set(gpio, level, NULL,
++ NULL);
+ led_dat->blinking = 0;
+ } else
+- gpio_set_value(led_dat->gpio, level);
++ gpiod_set_value(led_dat->gpiod, level);
+ }
+ }
+
+@@ -85,9 +89,10 @@ static int gpio_blink_set(struct led_classdev *led_cdev,
+ {
+ struct gpio_led_data *led_dat =
+ container_of(led_cdev, struct gpio_led_data, cdev);
++ int gpio = desc_to_gpio(led_dat->gpiod);
+
+ led_dat->blinking = 1;
+- return led_dat->platform_gpio_blink_set(led_dat->gpio, GPIO_LED_BLINK,
++ return led_dat->platform_gpio_blink_set(gpio, GPIO_LED_BLINK,
+ delay_on, delay_off);
+ }
+
+@@ -97,24 +102,33 @@ static int create_gpio_led(const struct gpio_led *template,
+ {
+ int ret, state;
+
+- led_dat->gpio = -1;
++ if (!template->gpiod) {
++ unsigned long flags = 0;
+
+- /* skip leds that aren't available */
+- if (!gpio_is_valid(template->gpio)) {
+- dev_info(parent, "Skipping unavailable LED gpio %d (%s)\n",
+- template->gpio, template->name);
+- return 0;
+- }
++ /* skip leds that aren't available */
++ if (!gpio_is_valid(template->gpio)) {
++ dev_info(parent, "Skipping unavailable LED gpio %d (%s)\n",
++ template->gpio, template->name);
++ return 0;
++ }
+
+- ret = devm_gpio_request(parent, template->gpio, template->name);
+- if (ret < 0)
+- return ret;
++ if (template->active_low)
++ flags |= GPIOF_ACTIVE_LOW;
++
++ ret = devm_gpio_request_one(parent, template->gpio, flags,
++ template->name);
++ if (ret < 0)
++ return ret;
++
++ led_dat->gpiod = gpio_to_desc(template->gpio);
++ if (IS_ERR(led_dat->gpiod))
++ return PTR_ERR(led_dat->gpiod);
++ }
+
+ led_dat->cdev.name = template->name;
+ led_dat->cdev.default_trigger = template->default_trigger;
+- led_dat->gpio = template->gpio;
+- led_dat->can_sleep = gpio_cansleep(template->gpio);
+- led_dat->active_low = template->active_low;
++ led_dat->gpiod = template->gpiod;
++ led_dat->can_sleep = gpiod_cansleep(template->gpiod);
+ led_dat->blinking = 0;
+ if (blink_set) {
+ led_dat->platform_gpio_blink_set = blink_set;
+@@ -122,30 +136,24 @@ static int create_gpio_led(const struct gpio_led *template,
+ }
+ led_dat->cdev.brightness_set = gpio_led_set;
+ if (template->default_state == LEDS_GPIO_DEFSTATE_KEEP)
+- state = !!gpio_get_value_cansleep(led_dat->gpio) ^ led_dat->active_low;
++ state = !!gpiod_get_value_cansleep(led_dat->gpiod);
+ else
+ state = (template->default_state == LEDS_GPIO_DEFSTATE_ON);
+ led_dat->cdev.brightness = state ? LED_FULL : LED_OFF;
+ if (!template->retain_state_suspended)
+ led_dat->cdev.flags |= LED_CORE_SUSPENDRESUME;
+
+- ret = gpio_direction_output(led_dat->gpio, led_dat->active_low ^ state);
++ ret = gpiod_direction_output(led_dat->gpiod, state);
+ if (ret < 0)
+ return ret;
+
+ INIT_WORK(&led_dat->work, gpio_led_work);
+
+- ret = led_classdev_register(parent, &led_dat->cdev);
+- if (ret < 0)
+- return ret;
+-
+- return 0;
++ return led_classdev_register(parent, &led_dat->cdev);
+ }
+
+ static void delete_gpio_led(struct gpio_led_data *led)
+ {
+- if (!gpio_is_valid(led->gpio))
+- return;
+ led_classdev_unregister(&led->cdev);
+ cancel_work_sync(&led->work);
+ }
+@@ -161,65 +169,59 @@ static inline int sizeof_gpio_leds_priv(int num_leds)
+ (sizeof(struct gpio_led_data) * num_leds);
+ }
+
+-/* Code to create from OpenFirmware platform devices */
+-#ifdef CONFIG_OF_GPIO
+-static struct gpio_leds_priv *gpio_leds_create_of(struct platform_device *pdev)
++static int gpio_leds_create_led(struct device *dev, void *child, void *data)
++{
++ struct gpio_leds_priv *priv = data;
++ struct gpio_led led = {};
++ const char *state = NULL;
++
++ led.gpiod = devm_get_named_gpiod_from_child(dev, child, "gpios", 0);
++ if (IS_ERR(led.gpiod))
++ return PTR_ERR(led.gpiod);
++
++ device_child_property_read_string(dev, child, "label", &led.name);
++ device_child_property_read_string(dev, child, "linux,default-trigger",
++ &led.default_trigger);
++
++ device_child_property_read_string(dev, child, "linux,default_state",
++ &state);
++ if (state) {
++ if (!strcmp(state, "keep"))
++ led.default_state = LEDS_GPIO_DEFSTATE_KEEP;
++ else if (!strcmp(state, "on"))
++ led.default_state = LEDS_GPIO_DEFSTATE_ON;
++ else
++ led.default_state = LEDS_GPIO_DEFSTATE_OFF;
++ }
++
++ if (!device_get_child_property(dev, child, "retain-state-suspended", NULL))
++ led.retain_state_suspended = 1;
++
++ return create_gpio_led(&led, &priv->leds[priv->num_leds++], dev, NULL);
++}
++
++static struct gpio_leds_priv *gpio_leds_create(struct platform_device *pdev)
+ {
+- struct device_node *np = pdev->dev.of_node, *child;
+ struct gpio_leds_priv *priv;
+- int count, ret;
++ int ret, count;
+
+- /* count LEDs in this device, so we know how much to allocate */
+- count = of_get_available_child_count(np);
++ count = device_get_child_node_count(&pdev->dev);
+ if (!count)
+ return ERR_PTR(-ENODEV);
+
+- for_each_available_child_of_node(np, child)
+- if (of_get_gpio(child, 0) == -EPROBE_DEFER)
+- return ERR_PTR(-EPROBE_DEFER);
+-
+ priv = devm_kzalloc(&pdev->dev, sizeof_gpio_leds_priv(count),
+ GFP_KERNEL);
+ if (!priv)
+ return ERR_PTR(-ENOMEM);
+
+- for_each_available_child_of_node(np, child) {
+- struct gpio_led led = {};
+- enum of_gpio_flags flags;
+- const char *state;
+-
+- led.gpio = of_get_gpio_flags(child, 0, &flags);
+- led.active_low = flags & OF_GPIO_ACTIVE_LOW;
+- led.name = of_get_property(child, "label", NULL) ? : child->name;
+- led.default_trigger =
+- of_get_property(child, "linux,default-trigger", NULL);
+- state = of_get_property(child, "default-state", NULL);
+- if (state) {
+- if (!strcmp(state, "keep"))
+- led.default_state = LEDS_GPIO_DEFSTATE_KEEP;
+- else if (!strcmp(state, "on"))
+- led.default_state = LEDS_GPIO_DEFSTATE_ON;
+- else
+- led.default_state = LEDS_GPIO_DEFSTATE_OFF;
+- }
+-
+- if (of_get_property(child, "retain-state-suspended", NULL))
+- led.retain_state_suspended = 1;
+-
+- ret = create_gpio_led(&led, &priv->leds[priv->num_leds++],
+- &pdev->dev, NULL);
+- if (ret < 0) {
+- of_node_put(child);
+- goto err;
+- }
++ ret = device_for_each_child_node(&pdev->dev, gpio_leds_create_led, priv);
++ if (ret) {
++ for (count = priv->num_leds - 2; count >= 0; count--)
++ delete_gpio_led(&priv->leds[count]);
++ return ERR_PTR(ret);
+ }
+
+ return priv;
+-
+-err:
+- for (count = priv->num_leds - 2; count >= 0; count--)
+- delete_gpio_led(&priv->leds[count]);
+- return ERR_PTR(-ENODEV);
+ }
+
+ static const struct of_device_id of_gpio_leds_match[] = {
+@@ -228,13 +230,13 @@ static const struct of_device_id of_gpio_leds_match[] = {
+ };
+
+ MODULE_DEVICE_TABLE(of, of_gpio_leds_match);
+-#else /* CONFIG_OF_GPIO */
+-static struct gpio_leds_priv *gpio_leds_create_of(struct platform_device *pdev)
+-{
+- return ERR_PTR(-ENODEV);
+-}
+-#endif /* CONFIG_OF_GPIO */
+
++static const struct acpi_device_id acpi_gpio_leds_match[] = {
++ { "PRP0001" }, /* Device Tree shoehorned into ACPI */
++ {},
++};
++
++MODULE_DEVICE_TABLE(acpi, acpi_gpio_leds_match);
+
+ static int gpio_led_probe(struct platform_device *pdev)
+ {
+@@ -263,7 +265,7 @@ static int gpio_led_probe(struct platform_device *pdev)
+ }
+ }
+ } else {
+- priv = gpio_leds_create_of(pdev);
++ priv = gpio_leds_create(pdev);
+ if (IS_ERR(priv))
+ return PTR_ERR(priv);
+ }
+@@ -290,7 +292,8 @@ static struct platform_driver gpio_led_driver = {
+ .driver = {
+ .name = "leds-gpio",
+ .owner = THIS_MODULE,
+- .of_match_table = of_match_ptr(of_gpio_leds_match),
++ .of_match_table = of_gpio_leds_match,
++ .acpi_match_table = acpi_gpio_leds_match,
+ },
+ };
+
+diff --git a/drivers/misc/eeprom/at25.c b/drivers/misc/eeprom/at25.c
+index 634f729..1a760cd 100644
+--- a/drivers/misc/eeprom/at25.c
++++ b/drivers/misc/eeprom/at25.c
+@@ -18,7 +18,7 @@
+
+ #include <linux/spi/spi.h>
+ #include <linux/spi/eeprom.h>
+-#include <linux/of.h>
++#include <linux/property.h>
+
+ /*
+ * NOTE: this is an *EEPROM* driver. The vagaries of product naming
+@@ -301,35 +301,33 @@ static ssize_t at25_mem_write(struct memory_accessor *mem, const char *buf,
+
+ /*-------------------------------------------------------------------------*/
+
+-static int at25_np_to_chip(struct device *dev,
+- struct device_node *np,
+- struct spi_eeprom *chip)
++static int at25_fw_to_chip(struct device *dev, struct spi_eeprom *chip)
+ {
+ u32 val;
+
+ memset(chip, 0, sizeof(*chip));
+- strncpy(chip->name, np->name, sizeof(chip->name));
++ strncpy(chip->name, "at25", sizeof(chip->name));
+
+- if (of_property_read_u32(np, "size", &val) == 0 ||
+- of_property_read_u32(np, "at25,byte-len", &val) == 0) {
++ if (device_property_read_u32(dev, "size", &val) == 0 ||
++ device_property_read_u32(dev, "at25,byte-len", &val) == 0) {
+ chip->byte_len = val;
+ } else {
+ dev_err(dev, "Error: missing \"size\" property\n");
+ return -ENODEV;
+ }
+
+- if (of_property_read_u32(np, "pagesize", &val) == 0 ||
+- of_property_read_u32(np, "at25,page-size", &val) == 0) {
++ if (device_property_read_u32(dev, "pagesize", &val) == 0 ||
++ device_property_read_u32(dev, "at25,page-size", &val) == 0) {
+ chip->page_size = (u16)val;
+ } else {
+ dev_err(dev, "Error: missing \"pagesize\" property\n");
+ return -ENODEV;
+ }
+
+- if (of_property_read_u32(np, "at25,addr-mode", &val) == 0) {
++ if (device_property_read_u32(dev, "at25,addr-mode", &val) == 0) {
+ chip->flags = (u16)val;
+ } else {
+- if (of_property_read_u32(np, "address-width", &val)) {
++ if (device_property_read_u32(dev, "address-width", &val)) {
+ dev_err(dev,
+ "Error: missing \"address-width\" property\n");
+ return -ENODEV;
+@@ -350,7 +348,7 @@ static int at25_np_to_chip(struct device *dev,
+ val);
+ return -ENODEV;
+ }
+- if (of_find_property(np, "read-only", NULL))
++ if (!device_get_property(dev, "read-only", NULL))
+ chip->flags |= EE_READONLY;
+ }
+ return 0;
+@@ -360,21 +358,15 @@ static int at25_probe(struct spi_device *spi)
+ {
+ struct at25_data *at25 = NULL;
+ struct spi_eeprom chip;
+- struct device_node *np = spi->dev.of_node;
+ int err;
+ int sr;
+ int addrlen;
+
+ /* Chip description */
+ if (!spi->dev.platform_data) {
+- if (np) {
+- err = at25_np_to_chip(&spi->dev, np, &chip);
+- if (err)
+- return err;
+- } else {
+- dev_err(&spi->dev, "Error: no chip description\n");
+- return -ENODEV;
+- }
++ err = at25_fw_to_chip(&spi->dev, &chip);
++ if (err)
++ return err;
+ } else
+ chip = *(struct spi_eeprom *)spi->dev.platform_data;
+
+@@ -467,11 +459,18 @@ static const struct of_device_id at25_of_match[] = {
+ };
+ MODULE_DEVICE_TABLE(of, at25_of_match);
+
++static const struct acpi_device_id at25_acpi_match[] = {
++ { "PRP0001" },
++ { }
++};
++MODULE_DEVICE_TABLE(acpi, at25_acpi_match);
++
+ static struct spi_driver at25_driver = {
+ .driver = {
+ .name = "at25",
+ .owner = THIS_MODULE,
+ .of_match_table = at25_of_match,
++ .acpi_match_table = at25_acpi_match,
+ },
+ .probe = at25_probe,
+ .remove = at25_remove,
+diff --git a/drivers/net/ethernet/amd/Kconfig b/drivers/net/ethernet/amd/Kconfig
+index 8319c99..6feb6ef3 100644
+--- a/drivers/net/ethernet/amd/Kconfig
++++ b/drivers/net/ethernet/amd/Kconfig
+@@ -179,7 +179,7 @@ config SUNLANCE
+
+ config AMD_XGBE
+ tristate "AMD 10GbE Ethernet driver"
+- depends on OF_NET
++ depends on OF_NET || ACPI
+ select PHYLIB
+ select AMD_XGBE_PHY
+ select BITREVERSE
diff --git a/drivers/net/ethernet/amd/xgbe/xgbe-dev.c b/drivers/net/ethernet/amd/xgbe/xgbe-dev.c
-index ea27383..d0d3ab5 100644
+index 9da3a03..a34cad2 100644
--- a/drivers/net/ethernet/amd/xgbe/xgbe-dev.c
+++ b/drivers/net/ethernet/amd/xgbe/xgbe-dev.c
-@@ -696,6 +696,18 @@ static int xgbe_read_mmd_regs(struct xgbe_prv_data *pdata, int prtad,
+@@ -130,7 +130,7 @@ static unsigned int xgbe_usec_to_riwt(struct xgbe_prv_data *pdata,
+
+ DBGPR("-->xgbe_usec_to_riwt\n");
+
+- rate = clk_get_rate(pdata->sysclk);
++ rate = pdata->sysclk_rate;
+
+ /*
+ * Convert the input usec value to the watchdog timer value. Each
+@@ -153,7 +153,7 @@ static unsigned int xgbe_riwt_to_usec(struct xgbe_prv_data *pdata,
+
+ DBGPR("-->xgbe_riwt_to_usec\n");
+
+- rate = clk_get_rate(pdata->sysclk);
++ rate = pdata->sysclk_rate;
+
+ /*
+ * Convert the input watchdog timer value to the usec value. Each
+@@ -695,6 +695,18 @@ static int xgbe_read_mmd_regs(struct xgbe_prv_data *pdata, int prtad,
else
mmd_address = (pdata->mdio_mmd << 16) | (mmd_reg & 0xffff);
@@ -4741,10 +6497,10 @@ index ea27383..d0d3ab5 100644
* management interface uses indirect addressing to access the MMD
* register sets. This requires accessing of the PCS register in two
diff --git a/drivers/net/ethernet/amd/xgbe/xgbe-drv.c b/drivers/net/ethernet/amd/xgbe/xgbe-drv.c
-index b26d758..ca7895c 100644
+index 2955499..423ae3d 100644
--- a/drivers/net/ethernet/amd/xgbe/xgbe-drv.c
+++ b/drivers/net/ethernet/amd/xgbe/xgbe-drv.c
-@@ -426,6 +426,9 @@ void xgbe_get_all_hw_features(struct xgbe_prv_data *pdata)
+@@ -425,6 +425,9 @@ void xgbe_get_all_hw_features(struct xgbe_prv_data *pdata)
hw_feat->rx_ch_cnt++;
hw_feat->tx_ch_cnt++;
@@ -4755,22 +6511,490 @@ index b26d758..ca7895c 100644
}
diff --git a/drivers/net/ethernet/amd/xgbe/xgbe-main.c b/drivers/net/ethernet/amd/xgbe/xgbe-main.c
-index bdf9cfa..ba53e41 100644
+index f5a8fa0..db29dec 100644
--- a/drivers/net/ethernet/amd/xgbe/xgbe-main.c
+++ b/drivers/net/ethernet/amd/xgbe/xgbe-main.c
-@@ -533,6 +533,7 @@ static int xgbe_resume(struct device *dev)
+@@ -124,6 +124,7 @@
+ #include <linux/of.h>
+ #include <linux/of_net.h>
+ #include <linux/clk.h>
++#include <linux/acpi.h>
+
+ #include "xgbe.h"
+ #include "xgbe-common.h"
+@@ -215,6 +216,210 @@ static void xgbe_init_all_fptrs(struct xgbe_prv_data *pdata)
+ xgbe_init_function_ptrs_desc(&pdata->desc_if);
+ }
+
++static int xgbe_map_resources(struct xgbe_prv_data *pdata)
++{
++ struct platform_device *pdev = pdata->pdev;
++ struct device *dev = pdata->dev;
++ struct resource *res;
++
++ /* Obtain the mmio areas for the device */
++ res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
++ pdata->xgmac_regs = devm_ioremap_resource(dev, res);
++ if (IS_ERR(pdata->xgmac_regs)) {
++ dev_err(dev, "xgmac ioremap failed\n");
++ return PTR_ERR(pdata->xgmac_regs);
++ }
++ DBGPR(" xgmac_regs = %p\n", pdata->xgmac_regs);
++
++ res = platform_get_resource(pdev, IORESOURCE_MEM, 1);
++ pdata->xpcs_regs = devm_ioremap_resource(dev, res);
++ if (IS_ERR(pdata->xpcs_regs)) {
++ dev_err(dev, "xpcs ioremap failed\n");
++ return PTR_ERR(pdata->xpcs_regs);
++ }
++ DBGPR(" xpcs_regs = %p\n", pdata->xpcs_regs);
++
++ return 0;
++}
++
++#ifdef CONFIG_ACPI
++static int xgbe_acpi_support(struct xgbe_prv_data *pdata)
++{
++ struct acpi_device *adev = pdata->adev;
++ struct device *dev = pdata->dev;
++ const union acpi_object *property;
++ acpi_status status;
++ u64 cca;
++ unsigned int i;
++ int ret;
++
++ /* Map the memory resources */
++ ret = xgbe_map_resources(pdata);
++ if (ret)
++ return ret;
++
++ /* Obtain the system clock setting */
++ ret = acpi_dev_get_property(adev, XGBE_ACPI_DMA_FREQ, ACPI_TYPE_INTEGER,
++ &property);
++ if (ret) {
++ dev_err(dev, "unable to obtain %s acpi property\n",
++ XGBE_ACPI_DMA_FREQ);
++ return ret;
++ }
++ pdata->sysclk_rate = property->integer.value;
++
++ /* Obtain the PTP clock setting */
++ ret = acpi_dev_get_property(adev, XGBE_ACPI_PTP_FREQ, ACPI_TYPE_INTEGER,
++ &property);
++ if (ret) {
++ dev_err(dev, "unable to obtain %s acpi property\n",
++ XGBE_ACPI_PTP_FREQ);
++ return ret;
++ }
++ pdata->ptpclk_rate = property->integer.value;
++
++ /* Retrieve the MAC address */
++ ret = acpi_dev_get_property_array(adev, XGBE_ACPI_MAC_ADDR,
++ ACPI_TYPE_INTEGER, &property);
++ if (ret) {
++ dev_err(dev, "unable to obtain %s acpi property\n",
++ XGBE_ACPI_MAC_ADDR);
++ return ret;
++ }
++ if (property->package.count != 6) {
++ dev_err(dev, "invalid %s acpi property\n",
++ XGBE_ACPI_MAC_ADDR);
++ return -EINVAL;
++ }
++ for (i = 0; i < property->package.count; i++) {
++ union acpi_object *obj = &property->package.elements[i];
++
++ pdata->mac_addr[i] = (u8)obj->integer.value;
++ }
++ if (!is_valid_ether_addr(pdata->mac_addr)) {
++ dev_err(dev, "invalid %s acpi property\n",
++ XGBE_ACPI_MAC_ADDR);
++#if 0
++ return -EINVAL;
++#else
++ dev_err(dev, "invalid MAC address, using random address\n");
++ eth_random_addr(pdata->mac_addr);
++#endif
++ }
++
++ /* Retrieve the PHY mode - it must be "xgmii" */
++ ret = acpi_dev_get_property(adev, XGBE_ACPI_PHY_MODE, ACPI_TYPE_STRING,
++ &property);
++ if (ret) {
++ dev_err(dev, "unable to obtain %s acpi property\n",
++ XGBE_ACPI_PHY_MODE);
++ return ret;
++ }
++ if (strcmp(property->string.pointer,
++ phy_modes(PHY_INTERFACE_MODE_XGMII))) {
++ dev_err(dev, "invalid %s acpi property\n",
++ XGBE_ACPI_PHY_MODE);
++ return -EINVAL;
++ }
++ pdata->phy_mode = PHY_INTERFACE_MODE_XGMII;
++
++#ifndef METHOD_NAME__CCA
++#define METHOD_NAME__CCA "_CCA"
++#endif
++ /* Set the device cache coherency values */
++ if (acpi_has_method(adev->handle, METHOD_NAME__CCA)) {
++ status = acpi_evaluate_integer(adev->handle, METHOD_NAME__CCA,
++ NULL, &cca);
++ if (ACPI_FAILURE(status)) {
++ dev_err(dev, "error obtaining acpi _CCA method\n");
++ return -EINVAL;
++ }
++ } else {
++ cca = 0;
++ }
++
++ if (cca) {
++ pdata->axdomain = XGBE_DMA_OS_AXDOMAIN;
++ pdata->arcache = XGBE_DMA_OS_ARCACHE;
++ pdata->awcache = XGBE_DMA_OS_AWCACHE;
++ } else {
++ pdata->axdomain = XGBE_DMA_SYS_AXDOMAIN;
++ pdata->arcache = XGBE_DMA_SYS_ARCACHE;
++ pdata->awcache = XGBE_DMA_SYS_AWCACHE;
++ }
++
++ return 0;
++}
++#else /* CONFIG_ACPI */
++static int xgbe_acpi_support(struct xgbe_prv_data *pdata)
++{
++ return -EINVAL;
++}
++#endif /* CONFIG_ACPI */
++
++#ifdef CONFIG_OF
++static int xgbe_of_support(struct xgbe_prv_data *pdata)
++{
++ struct device *dev = pdata->dev;
++ const u8 *mac_addr;
++ int ret;
++
++ /* Map the memory resources */
++ ret = xgbe_map_resources(pdata);
++ if (ret)
++ return ret;
++
++ /* Obtain the system clock setting */
++ pdata->sysclk = devm_clk_get(dev, XGBE_DMA_CLOCK);
++ if (IS_ERR(pdata->sysclk)) {
++ dev_err(dev, "dma devm_clk_get failed\n");
++ return PTR_ERR(pdata->sysclk);
++ }
++ pdata->sysclk_rate = clk_get_rate(pdata->sysclk);
++
++ /* Obtain the PTP clock setting */
++ pdata->ptpclk = devm_clk_get(dev, XGBE_PTP_CLOCK);
++ if (IS_ERR(pdata->ptpclk)) {
++ dev_err(dev, "ptp devm_clk_get failed\n");
++ return PTR_ERR(pdata->ptpclk);
++ }
++ pdata->ptpclk_rate = clk_get_rate(pdata->ptpclk);
++
++ /* Retrieve the MAC address */
++ mac_addr = of_get_mac_address(dev->of_node);
++ if (!mac_addr) {
++ dev_err(dev, "invalid mac address for this device\n");
++ return -EINVAL;
++ }
++ memcpy(pdata->mac_addr, mac_addr, ETH_ALEN);
++
++ /* Retrieve the PHY mode - it must be "xgmii" */
++ pdata->phy_mode = of_get_phy_mode(dev->of_node);
++ if (pdata->phy_mode != PHY_INTERFACE_MODE_XGMII) {
++ dev_err(dev, "invalid phy-mode specified for this device\n");
++ return -EINVAL;
++ }
++
++ /* Set the device cache coherency values */
++ if (of_property_read_bool(dev->of_node, "dma-coherent")) {
++ pdata->axdomain = XGBE_DMA_OS_AXDOMAIN;
++ pdata->arcache = XGBE_DMA_OS_ARCACHE;
++ pdata->awcache = XGBE_DMA_OS_AWCACHE;
++ } else {
++ pdata->axdomain = XGBE_DMA_SYS_AXDOMAIN;
++ pdata->arcache = XGBE_DMA_SYS_ARCACHE;
++ pdata->awcache = XGBE_DMA_SYS_AWCACHE;
++ }
++
++ return 0;
++}
++#else /* CONFIG_OF */
++static int xgbe_of_support(struct xgbe_prv_data *pdata)
++{
++ return -EINVAL;
++}
++#endif /*CONFIG_OF */
++
+ static int xgbe_probe(struct platform_device *pdev)
+ {
+ struct xgbe_prv_data *pdata;
+@@ -222,8 +427,6 @@ static int xgbe_probe(struct platform_device *pdev)
+ struct xgbe_desc_if *desc_if;
+ struct net_device *netdev;
+ struct device *dev = &pdev->dev;
+- struct resource *res;
+- const u8 *mac_addr;
+ int ret;
+
+ DBGPR("--> xgbe_probe\n");
+@@ -239,6 +442,7 @@ static int xgbe_probe(struct platform_device *pdev)
+ pdata = netdev_priv(netdev);
+ pdata->netdev = netdev;
+ pdata->pdev = pdev;
++ pdata->adev = ACPI_COMPANION(dev);
+ pdata->dev = dev;
+ platform_set_drvdata(pdev, netdev);
+
+@@ -264,40 +468,13 @@ static int xgbe_probe(struct platform_device *pdev)
+ goto err_io;
+ }
+
+- /* Obtain the system clock setting */
+- pdata->sysclk = devm_clk_get(dev, XGBE_DMA_CLOCK);
+- if (IS_ERR(pdata->sysclk)) {
+- dev_err(dev, "dma devm_clk_get failed\n");
+- ret = PTR_ERR(pdata->sysclk);
+- goto err_io;
+- }
+-
+- /* Obtain the PTP clock setting */
+- pdata->ptpclk = devm_clk_get(dev, XGBE_PTP_CLOCK);
+- if (IS_ERR(pdata->ptpclk)) {
+- dev_err(dev, "ptp devm_clk_get failed\n");
+- ret = PTR_ERR(pdata->ptpclk);
+- goto err_io;
+- }
+-
+- /* Obtain the mmio areas for the device */
+- res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+- pdata->xgmac_regs = devm_ioremap_resource(dev, res);
+- if (IS_ERR(pdata->xgmac_regs)) {
+- dev_err(dev, "xgmac ioremap failed\n");
+- ret = PTR_ERR(pdata->xgmac_regs);
+- goto err_io;
+- }
+- DBGPR(" xgmac_regs = %p\n", pdata->xgmac_regs);
+-
+- res = platform_get_resource(pdev, IORESOURCE_MEM, 1);
+- pdata->xpcs_regs = devm_ioremap_resource(dev, res);
+- if (IS_ERR(pdata->xpcs_regs)) {
+- dev_err(dev, "xpcs ioremap failed\n");
+- ret = PTR_ERR(pdata->xpcs_regs);
++ /* Obtain device settings */
++ if (pdata->adev && !acpi_disabled)
++ ret = xgbe_acpi_support(pdata);
++ else
++ ret = xgbe_of_support(pdata);
++ if (ret)
+ goto err_io;
+- }
+- DBGPR(" xpcs_regs = %p\n", pdata->xpcs_regs);
+
+ /* Set the DMA mask */
+ if (!dev->dma_mask)
+@@ -308,23 +485,16 @@ static int xgbe_probe(struct platform_device *pdev)
+ goto err_io;
+ }
+
+- if (of_property_read_bool(dev->of_node, "dma-coherent")) {
+- pdata->axdomain = XGBE_DMA_OS_AXDOMAIN;
+- pdata->arcache = XGBE_DMA_OS_ARCACHE;
+- pdata->awcache = XGBE_DMA_OS_AWCACHE;
+- } else {
+- pdata->axdomain = XGBE_DMA_SYS_AXDOMAIN;
+- pdata->arcache = XGBE_DMA_SYS_ARCACHE;
+- pdata->awcache = XGBE_DMA_SYS_AWCACHE;
+- }
+-
++ /* Get the device interrupt */
+ ret = platform_get_irq(pdev, 0);
+ if (ret < 0) {
+ dev_err(dev, "platform_get_irq failed\n");
+ goto err_io;
+ }
++
+ netdev->irq = ret;
+ netdev->base_addr = (unsigned long)pdata->xgmac_regs;
++ memcpy(netdev->dev_addr, pdata->mac_addr, netdev->addr_len);
+
+ /* Set all the function pointers */
+ xgbe_init_all_fptrs(pdata);
+@@ -337,23 +507,6 @@ static int xgbe_probe(struct platform_device *pdev)
+ /* Populate the hardware features */
+ xgbe_get_all_hw_features(pdata);
+
+- /* Retrieve the MAC address */
+- mac_addr = of_get_mac_address(dev->of_node);
+- if (!mac_addr) {
+- dev_err(dev, "invalid mac address for this device\n");
+- ret = -EINVAL;
+- goto err_io;
+- }
+- memcpy(netdev->dev_addr, mac_addr, netdev->addr_len);
+-
+- /* Retrieve the PHY mode - it must be "xgmii" */
+- pdata->phy_mode = of_get_phy_mode(dev->of_node);
+- if (pdata->phy_mode != PHY_INTERFACE_MODE_XGMII) {
+- dev_err(dev, "invalid phy-mode specified for this device\n");
+- ret = -EINVAL;
+- goto err_io;
+- }
+-
+ /* Set default configuration data */
+ xgbe_default_config(pdata);
+
+@@ -531,10 +684,22 @@ static int xgbe_resume(struct device *dev)
+ }
#endif /* CONFIG_PM */
++#ifdef CONFIG_ACPI
++static const struct acpi_device_id xgbe_acpi_match[] = {
++ { "AMDI8000", 0 },
++ {},
++};
++
++MODULE_DEVICE_TABLE(acpi, xgbe_acpi_match);
++#endif
++
++#ifdef CONFIG_OF
static const struct of_device_id xgbe_of_match[] = {
+ { .compatible = "amd,xgbe-seattle-v0a", },
{ .compatible = "amd,xgbe-seattle-v1a", },
{},
};
++#endif
+
+ MODULE_DEVICE_TABLE(of, xgbe_of_match);
+ static SIMPLE_DEV_PM_OPS(xgbe_pm_ops, xgbe_suspend, xgbe_resume);
+@@ -542,7 +707,12 @@ static SIMPLE_DEV_PM_OPS(xgbe_pm_ops, xgbe_suspend, xgbe_resume);
+ static struct platform_driver xgbe_driver = {
+ .driver = {
+ .name = "amd-xgbe",
++#ifdef CONFIG_ACPI
++ .acpi_match_table = xgbe_acpi_match,
++#endif
++#ifdef CONFIG_OF
+ .of_match_table = xgbe_of_match,
++#endif
+ .pm = &xgbe_pm_ops,
+ },
+ .probe = xgbe_probe,
+diff --git a/drivers/net/ethernet/amd/xgbe/xgbe-mdio.c b/drivers/net/ethernet/amd/xgbe/xgbe-mdio.c
+index 363b210..5d2c89b 100644
+--- a/drivers/net/ethernet/amd/xgbe/xgbe-mdio.c
++++ b/drivers/net/ethernet/amd/xgbe/xgbe-mdio.c
+@@ -119,6 +119,7 @@
+ #include <linux/mdio.h>
+ #include <linux/phy.h>
+ #include <linux/of.h>
++#include <linux/acpi.h>
+
+ #include "xgbe.h"
+ #include "xgbe-common.h"
+@@ -205,25 +206,16 @@ void xgbe_dump_phy_registers(struct xgbe_prv_data *pdata)
+
+ int xgbe_mdio_register(struct xgbe_prv_data *pdata)
+ {
+- struct device_node *phy_node;
+ struct mii_bus *mii;
+ struct phy_device *phydev;
+ int ret = 0;
+
+ DBGPR("-->xgbe_mdio_register\n");
+
+- /* Retrieve the phy-handle */
+- phy_node = of_parse_phandle(pdata->dev->of_node, "phy-handle", 0);
+- if (!phy_node) {
+- dev_err(pdata->dev, "unable to parse phy-handle\n");
+- return -EINVAL;
+- }
+-
+ mii = mdiobus_alloc();
+ if (mii == NULL) {
+ dev_err(pdata->dev, "mdiobus_alloc failed\n");
+- ret = -ENOMEM;
+- goto err_node_get;
++ return -ENOMEM;
+ }
+
+ /* Register on the MDIO bus (don't probe any PHYs) */
+@@ -252,12 +244,9 @@ int xgbe_mdio_register(struct xgbe_prv_data *pdata)
+ request_module(MDIO_MODULE_PREFIX MDIO_ID_FMT,
+ MDIO_ID_ARGS(phydev->c45_ids.device_ids[MDIO_MMD_PCS]));
+
+- of_node_get(phy_node);
+- phydev->dev.of_node = phy_node;
+ ret = phy_device_register(phydev);
+ if (ret) {
+ dev_err(pdata->dev, "phy_device_register failed\n");
+- of_node_put(phy_node);
+ goto err_phy_device;
+ }
+
+@@ -283,8 +272,6 @@ int xgbe_mdio_register(struct xgbe_prv_data *pdata)
+
+ pdata->phydev = phydev;
+
+- of_node_put(phy_node);
+-
+ DBGPHY_REGS(pdata);
+
+ DBGPR("<--xgbe_mdio_register\n");
+@@ -300,9 +287,6 @@ err_mdiobus_register:
+ err_mdiobus_alloc:
+ mdiobus_free(mii);
+
+-err_node_get:
+- of_node_put(phy_node);
+-
+ return ret;
+ }
+
+diff --git a/drivers/net/ethernet/amd/xgbe/xgbe-ptp.c b/drivers/net/ethernet/amd/xgbe/xgbe-ptp.c
+index a1bf9d1c..fa67203 100644
+--- a/drivers/net/ethernet/amd/xgbe/xgbe-ptp.c
++++ b/drivers/net/ethernet/amd/xgbe/xgbe-ptp.c
+@@ -239,7 +239,7 @@ void xgbe_ptp_register(struct xgbe_prv_data *pdata)
+ snprintf(info->name, sizeof(info->name), "%s",
+ netdev_name(pdata->netdev));
+ info->owner = THIS_MODULE;
+- info->max_adj = clk_get_rate(pdata->ptpclk);
++ info->max_adj = pdata->ptpclk_rate;
+ info->adjfreq = xgbe_adjfreq;
+ info->adjtime = xgbe_adjtime;
+ info->gettime = xgbe_gettime;
+@@ -260,7 +260,7 @@ void xgbe_ptp_register(struct xgbe_prv_data *pdata)
+ */
+ dividend = 50000000;
+ dividend <<= 32;
+- pdata->tstamp_addend = div_u64(dividend, clk_get_rate(pdata->ptpclk));
++ pdata->tstamp_addend = div_u64(dividend, pdata->ptpclk_rate);
+
+ /* Setup the timecounter */
+ cc->read = xgbe_cc_read;
diff --git a/drivers/net/ethernet/amd/xgbe/xgbe.h b/drivers/net/ethernet/amd/xgbe/xgbe.h
-index e9fe6e6..389bfec 100644
+index 789957d..59498eb 100644
--- a/drivers/net/ethernet/amd/xgbe/xgbe.h
+++ b/drivers/net/ethernet/amd/xgbe/xgbe.h
-@@ -187,8 +187,11 @@
+@@ -172,6 +172,12 @@
+ #define XGBE_DMA_CLOCK "dma_clk"
+ #define XGBE_PTP_CLOCK "ptp_clk"
+
++/* ACPI property names */
++#define XGBE_ACPI_MAC_ADDR "mac-address"
++#define XGBE_ACPI_PHY_MODE "phy-mode"
++#define XGBE_ACPI_DMA_FREQ "amd,dma-freq"
++#define XGBE_ACPI_PTP_FREQ "amd,ptp-freq"
++
+ /* Timestamp support - values based on 50MHz PTP clock
+ * 50MHz => 20 nsec
+ */
+@@ -186,8 +192,11 @@
#define XGBE_FIFO_SIZE_B(x) (x)
#define XGBE_FIFO_SIZE_KB(x) (x * 1024)
@@ -4782,8 +7006,315 @@ index e9fe6e6..389bfec 100644
/* Helper macro for descriptor handling
* Always use XGBE_GET_DESC_DATA to access the descriptor data
* since the index is free-running and needs to be and-ed
+@@ -569,6 +578,7 @@ struct xgbe_hw_features {
+ struct xgbe_prv_data {
+ struct net_device *netdev;
+ struct platform_device *pdev;
++ struct acpi_device *adev;
+ struct device *dev;
+
+ /* XGMAC/XPCS related mmio registers */
+@@ -649,6 +659,7 @@ struct xgbe_prv_data {
+ unsigned int phy_rx_pause;
+
+ /* Netdev related settings */
++ unsigned char mac_addr[MAX_ADDR_LEN];
+ netdev_features_t netdev_features;
+ struct napi_struct napi;
+ struct xgbe_mmc_stats mmc_stats;
+@@ -658,7 +669,9 @@ struct xgbe_prv_data {
+
+ /* Device clocks */
+ struct clk *sysclk;
++ unsigned long sysclk_rate;
+ struct clk *ptpclk;
++ unsigned long ptpclk_rate;
+
+ /* Timestamp support */
+ spinlock_t tstamp_lock;
+diff --git a/drivers/net/ethernet/apm/xgene/xgene_enet_hw.c b/drivers/net/ethernet/apm/xgene/xgene_enet_hw.c
+index 63ea194..bb059b4 100644
+--- a/drivers/net/ethernet/apm/xgene/xgene_enet_hw.c
++++ b/drivers/net/ethernet/apm/xgene/xgene_enet_hw.c
+@@ -579,9 +579,11 @@ static void xgene_enet_reset(struct xgene_enet_pdata *pdata)
+ {
+ u32 val;
+
+- clk_prepare_enable(pdata->clk);
+- clk_disable_unprepare(pdata->clk);
+- clk_prepare_enable(pdata->clk);
++ if (pdata->clk) {
++ clk_prepare_enable(pdata->clk);
++ clk_disable_unprepare(pdata->clk);
++ clk_prepare_enable(pdata->clk);
++ }
+ xgene_enet_ecc_init(pdata);
+ xgene_enet_config_ring_if_assoc(pdata);
+
+@@ -647,15 +649,20 @@ static int xgene_enet_phy_connect(struct net_device *ndev)
+ struct phy_device *phy_dev;
+ struct device *dev = &pdata->pdev->dev;
+
+- phy_np = of_parse_phandle(dev->of_node, "phy-handle", 0);
+- if (!phy_np) {
+- netdev_dbg(ndev, "No phy-handle found\n");
+- return -ENODEV;
++ if (dev->of_node) {
++ phy_np = of_parse_phandle(dev->of_node, "phy-handle", 0);
++ if (!phy_np) {
++ netdev_dbg(ndev, "No phy-handle found in DT\n");
++ return -ENODEV;
++ }
++ pdata->phy_dev = of_phy_find_device(phy_np);
+ }
+
+- phy_dev = of_phy_connect(ndev, phy_np, &xgene_enet_adjust_link,
+- 0, pdata->phy_mode);
+- if (!phy_dev) {
++ phy_dev = pdata->phy_dev;
++
++ if (phy_dev == NULL ||
++ phy_connect_direct(ndev, phy_dev, &xgene_enet_adjust_link,
++ pdata->phy_mode)) {
+ netdev_err(ndev, "Could not connect to PHY\n");
+ return -ENODEV;
+ }
+@@ -665,11 +672,52 @@ static int xgene_enet_phy_connect(struct net_device *ndev)
+ ~SUPPORTED_100baseT_Half &
+ ~SUPPORTED_1000baseT_Half;
+ phy_dev->advertising = phy_dev->supported;
+- pdata->phy_dev = phy_dev;
+
+ return 0;
+ }
+
++#ifdef CONFIG_ACPI
++static int xgene_acpi_mdiobus_register(struct xgene_enet_pdata *pdata,
++ struct mii_bus *mdio)
++{
++ struct device *dev = &pdata->pdev->dev;
++ struct phy_device *phy;
++ int i, ret;
++ u32 phy_id;
++
++ /* Mask out all PHYs from auto probing. */
++ mdio->phy_mask = ~0;
++
++ /* Clear all the IRQ properties */
++ if (mdio->irq)
++ for (i = 0; i < PHY_MAX_ADDR; i++)
++ mdio->irq[i] = PHY_POLL;
++
++ /* Register the MDIO bus */
++ ret = mdiobus_register(mdio);
++ if (ret)
++ return ret;
++
++ ret = device_property_read_u32(dev, "phy-channel", &phy_id);
++ if (ret)
++ return -EINVAL;
++
++ phy = get_phy_device(mdio, phy_id, true);
++ if (!phy || IS_ERR(phy))
++ return -EIO;
++
++ ret = phy_device_register(phy);
++ if (ret)
++ phy_device_free(phy);
++ else
++ pdata->phy_dev = phy;
++
++ return ret;
++}
++#else
++#define xgene_acpi_mdiobus_register(a, b) -1
++#endif
++
+ int xgene_enet_mdio_config(struct xgene_enet_pdata *pdata)
+ {
+ struct net_device *ndev = pdata->ndev;
+@@ -686,7 +734,7 @@ int xgene_enet_mdio_config(struct xgene_enet_pdata *pdata)
+ }
+ }
+
+- if (!mdio_np) {
++ if (dev->of_node && !mdio_np) {
+ netdev_dbg(ndev, "No mdio node in the dts\n");
+ return -ENXIO;
+ }
+@@ -704,7 +752,10 @@ int xgene_enet_mdio_config(struct xgene_enet_pdata *pdata)
+ mdio_bus->priv = pdata;
+ mdio_bus->parent = &ndev->dev;
+
+- ret = of_mdiobus_register(mdio_bus, mdio_np);
++ if (dev->of_node)
++ ret = of_mdiobus_register(mdio_bus, mdio_np);
++ else
++ ret = xgene_acpi_mdiobus_register(pdata, mdio_bus);
+ if (ret) {
+ netdev_err(ndev, "Failed to register MDIO bus\n");
+ mdiobus_free(mdio_bus);
+diff --git a/drivers/net/ethernet/apm/xgene/xgene_enet_main.c b/drivers/net/ethernet/apm/xgene/xgene_enet_main.c
+index 3c208cc..6370ff4 100644
+--- a/drivers/net/ethernet/apm/xgene/xgene_enet_main.c
++++ b/drivers/net/ethernet/apm/xgene/xgene_enet_main.c
+@@ -746,6 +746,42 @@ static const struct net_device_ops xgene_ndev_ops = {
+ .ndo_set_mac_address = xgene_enet_set_mac_address,
+ };
+
++#ifdef CONFIG_ACPI
++static int acpi_get_mac_address(struct device *dev,
++ unsigned char *addr)
++{
++ int ret;
++
++ ret = device_property_read_u8_array(dev, "mac-address", addr, 6);
++ if (ret)
++ return 0;
++
++ return 6;
++}
++
++static int acpi_get_phy_mode(struct device *dev)
++{
++ int i, ret, phy_mode;
++ char *modestr;
++
++ ret = device_property_read_string(dev, "phy-mode", &modestr);
++ if (ret)
++ return -1;
++
++ phy_mode = -1;
++ for (i = 0; i < PHY_INTERFACE_MODE_MAX; i++) {
++ if (!strcasecmp(modestr, phy_modes(i))) {
++ phy_mode = i;
++ break;
++ }
++ }
++ return phy_mode;
++}
++#else
++#define acpi_get_mac_address(a, b, c) 0
++#define acpi_get_phy_mode(a) -1
++#endif
++
+ static int xgene_enet_get_resources(struct xgene_enet_pdata *pdata)
+ {
+ struct platform_device *pdev;
+@@ -761,6 +797,8 @@ static int xgene_enet_get_resources(struct xgene_enet_pdata *pdata)
+ ndev = pdata->ndev;
+
+ res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "enet_csr");
++ if (!res)
++ res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+ if (!res) {
+ dev_err(dev, "Resource enet_csr not defined\n");
+ return -ENODEV;
+@@ -772,6 +810,8 @@ static int xgene_enet_get_resources(struct xgene_enet_pdata *pdata)
+ }
+
+ res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "ring_csr");
++ if (!res)
++ res = platform_get_resource(pdev, IORESOURCE_MEM, 1);
+ if (!res) {
+ dev_err(dev, "Resource ring_csr not defined\n");
+ return -ENODEV;
+@@ -783,6 +823,8 @@ static int xgene_enet_get_resources(struct xgene_enet_pdata *pdata)
+ }
+
+ res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "ring_cmd");
++ if (!res)
++ res = platform_get_resource(pdev, IORESOURCE_MEM, 2);
+ if (!res) {
+ dev_err(dev, "Resource ring_cmd not defined\n");
+ return -ENODEV;
+@@ -804,11 +846,13 @@ static int xgene_enet_get_resources(struct xgene_enet_pdata *pdata)
+ mac = of_get_mac_address(dev->of_node);
+ if (mac)
+ memcpy(ndev->dev_addr, mac, ndev->addr_len);
+- else
++ else if (!acpi_get_mac_address(dev, ndev->dev_addr))
+ eth_hw_addr_random(ndev);
+ memcpy(ndev->perm_addr, ndev->dev_addr, ndev->addr_len);
+
+ pdata->phy_mode = of_get_phy_mode(pdev->dev.of_node);
++ if (pdata->phy_mode < 0)
++ pdata->phy_mode = acpi_get_phy_mode(dev);
+ if (pdata->phy_mode < 0) {
+ dev_err(dev, "Unable to get phy-connection-type\n");
+ return pdata->phy_mode;
+@@ -821,11 +865,12 @@ static int xgene_enet_get_resources(struct xgene_enet_pdata *pdata)
+ }
+
+ pdata->clk = devm_clk_get(&pdev->dev, NULL);
+- ret = IS_ERR(pdata->clk);
+ if (IS_ERR(pdata->clk)) {
+- dev_err(&pdev->dev, "can't get clock\n");
+- ret = PTR_ERR(pdata->clk);
+- return ret;
++ /*
++ * Not necessarily an error. Firmware may have
++ * set up the clock already.
++ */
++ pdata->clk = NULL;
+ }
+
+ base_addr = pdata->base_addr;
+@@ -873,7 +918,7 @@ static int xgene_enet_init_hw(struct xgene_enet_pdata *pdata)
+ pdata->port_ops->cle_bypass(pdata, dst_ring_num, buf_pool->id);
+ pdata->mac_ops->init(pdata);
+
+- return ret;
++ return 0;
+ }
+
+ static void xgene_enet_setup_ops(struct xgene_enet_pdata *pdata)
+@@ -934,7 +979,7 @@ static int xgene_enet_probe(struct platform_device *pdev)
+ goto err;
+ }
+
+- ret = dma_set_mask_and_coherent(dev, DMA_BIT_MASK(64));
++ ret = dma_coerce_mask_and_coherent(dev, DMA_BIT_MASK(64));
+ if (ret) {
+ netdev_err(ndev, "No usable DMA configuration\n");
+ goto err;
+@@ -981,6 +1026,14 @@ static int xgene_enet_remove(struct platform_device *pdev)
+ return 0;
+ }
+
++#ifdef CONFIG_ACPI
++static const struct acpi_device_id xgene_enet_acpi_match[] = {
++ { "APMC0D05", },
++ { }
++};
++MODULE_DEVICE_TABLE(acpi, xgene_enet_acpi_match);
++#endif
++
+ static struct of_device_id xgene_enet_match[] = {
+ {.compatible = "apm,xgene-enet",},
+ {},
+@@ -992,6 +1045,7 @@ static struct platform_driver xgene_enet_driver = {
+ .driver = {
+ .name = "xgene-enet",
+ .of_match_table = xgene_enet_match,
++ .acpi_match_table = ACPI_PTR(xgene_enet_acpi_match),
+ },
+ .probe = xgene_enet_probe,
+ .remove = xgene_enet_remove,
+diff --git a/drivers/net/ethernet/apm/xgene/xgene_enet_main.h b/drivers/net/ethernet/apm/xgene/xgene_enet_main.h
+index 874e5a0..8b7e2cf 100644
+--- a/drivers/net/ethernet/apm/xgene/xgene_enet_main.h
++++ b/drivers/net/ethernet/apm/xgene/xgene_enet_main.h
+@@ -31,6 +31,7 @@
+ #include <linux/prefetch.h>
+ #include <linux/if_vlan.h>
+ #include <linux/phy.h>
++#include <linux/acpi.h>
+ #include "xgene_enet_hw.h"
+
+ #define XGENE_DRV_VERSION "v1.0"
diff --git a/drivers/net/ethernet/smsc/smc91x.c b/drivers/net/ethernet/smsc/smc91x.c
-index bcaa41a..ebad872 100644
+index 5e94d00..a6131a9 100644
--- a/drivers/net/ethernet/smsc/smc91x.c
+++ b/drivers/net/ethernet/smsc/smc91x.c
@@ -81,6 +81,7 @@ static const char version[] =
@@ -4794,7 +7325,7 @@ index bcaa41a..ebad872 100644
#include <linux/netdevice.h>
#include <linux/etherdevice.h>
-@@ -2408,6 +2409,14 @@ static struct dev_pm_ops smc_drv_pm_ops = {
+@@ -2405,6 +2406,14 @@ static struct dev_pm_ops smc_drv_pm_ops = {
.resume = smc_drv_resume,
};
@@ -4809,7 +7340,7 @@ index bcaa41a..ebad872 100644
static struct platform_driver smc_driver = {
.probe = smc_drv_probe,
.remove = smc_drv_remove,
-@@ -2416,6 +2425,7 @@ static struct platform_driver smc_driver = {
+@@ -2413,6 +2422,7 @@ static struct platform_driver smc_driver = {
.owner = THIS_MODULE,
.pm = &smc_drv_pm_ops,
.of_match_table = of_match_ptr(smc91x_match),
@@ -4817,11 +7348,29 @@ index bcaa41a..ebad872 100644
},
};
+diff --git a/drivers/net/phy/Kconfig b/drivers/net/phy/Kconfig
+index 75472cf7..bacafe2 100644
+--- a/drivers/net/phy/Kconfig
++++ b/drivers/net/phy/Kconfig
+@@ -26,7 +26,7 @@ config AMD_PHY
+
+ config AMD_XGBE_PHY
+ tristate "Driver for the AMD 10GbE (amd-xgbe) PHYs"
+- depends on OF
++ depends on OF || ACPI
+ ---help---
+ Currently supports the AMD 10GbE PHY
+
diff --git a/drivers/net/phy/amd-xgbe-phy.c b/drivers/net/phy/amd-xgbe-phy.c
-index f3230ee..90145d9 100644
+index c456559..d852c6e 100644
--- a/drivers/net/phy/amd-xgbe-phy.c
+++ b/drivers/net/phy/amd-xgbe-phy.c
-@@ -78,12 +78,14 @@
+@@ -74,15 +74,19 @@
+ #include <linux/of_platform.h>
+ #include <linux/of_device.h>
+ #include <linux/uaccess.h>
++#include <linux/acpi.h>
++
MODULE_AUTHOR("Tom Lendacky <thomas.lendacky@amd.com>");
MODULE_LICENSE("Dual BSD/GPL");
@@ -4838,10 +7387,39 @@ index f3230ee..90145d9 100644
#define XGBE_PHY_SPEEDSET_PROPERTY "amd,speed-set"
#define XGBE_AN_INT_CMPLT 0x01
-@@ -118,77 +120,6 @@ MODULE_DESCRIPTION("AMD 10GbE (amd-xgbe) PHY driver");
+@@ -99,11 +103,9 @@ MODULE_DESCRIPTION("AMD 10GbE (amd-xgbe) PHY driver");
+ #ifndef MDIO_PMA_10GBR_PMD_CTRL
+ #define MDIO_PMA_10GBR_PMD_CTRL 0x0096
+ #endif
+-
+ #ifndef MDIO_PMA_10GBR_FEC_CTRL
+ #define MDIO_PMA_10GBR_FEC_CTRL 0x00ab
+ #endif
+-
+ #ifndef MDIO_AN_XNP
+ #define MDIO_AN_XNP 0x0016
+ #endif
+@@ -111,93 +113,14 @@ MODULE_DESCRIPTION("AMD 10GbE (amd-xgbe) PHY driver");
+ #ifndef MDIO_AN_INTMASK
+ #define MDIO_AN_INTMASK 0x8001
+ #endif
+-
+ #ifndef MDIO_AN_INT
+ #define MDIO_AN_INT 0x8002
+ #endif
+
+-#ifndef MDIO_AN_KR_CTRL
+-#define MDIO_AN_KR_CTRL 0x8003
+-#endif
+-
+ #ifndef MDIO_CTRL1_SPEED1G
#define MDIO_CTRL1_SPEED1G (MDIO_CTRL1_SPEED10G & ~BMCR_SPEED100)
#endif
+-#ifndef MDIO_KR_CTRL_PDETECT
+-#define MDIO_KR_CTRL_PDETECT 0x01
+-#endif
+-
-/* SerDes integration register offsets */
-#define SIR0_KR_RT_1 0x002c
-#define SIR0_STATUS 0x0040
@@ -4885,7 +7463,6 @@ index f3230ee..90145d9 100644
-#define SPEED_1000_TXAMP 0xf
-#define SPEED_1000_WORD 0x1
-
--
-/* SerDes RxTx register offsets */
-#define RXTX_REG20 0x0050
-#define RXTX_REG114 0x01c8
@@ -4916,7 +7493,7 @@ index f3230ee..90145d9 100644
#define GET_BITS(_var, _index, _width) \
(((_var) >> (_index)) & ((0x1 << (_width)) - 1))
-@@ -198,71 +129,12 @@ do { \
+@@ -207,70 +130,12 @@ do { \
(_var) |= (((_val) & ((0x1 << (_width)) - 1)) << (_index)); \
} while (0)
@@ -4929,9 +7506,7 @@ index f3230ee..90145d9 100644
- SET_BITS((_var), \
- _prefix##_##_field##_INDEX, \
- _prefix##_##_field##_WIDTH, (_val))
-+#define XCMU_IOREAD(_priv, _reg) \
-+ ioread16((_priv)->cmu_regs + _reg)
-
+-
-/* Macros for reading or writing SerDes integration registers
- * The ioread macros will get bit fields or full values using the
- * register definitions formed using the input names
@@ -4941,9 +7516,7 @@ index f3230ee..90145d9 100644
- */
-#define XSIR0_IOREAD(_priv, _reg) \
- ioread16((_priv)->sir0_regs + _reg)
-+#define XCMU_IOWRITE(_priv, _reg, _val) \
-+ iowrite16((_val), (_priv)->cmu_regs + _reg)
-
+-
-#define XSIR0_IOREAD_BITS(_priv, _reg, _field) \
- GET_BITS(XSIR0_IOREAD((_priv), _reg), \
- _reg##_##_field##_INDEX, \
@@ -4968,10 +7541,14 @@ index f3230ee..90145d9 100644
- GET_BITS(XSIR1_IOREAD((_priv), _reg), \
- _reg##_##_field##_INDEX, \
- _reg##_##_field##_WIDTH)
--
++#define XCMU_IOREAD(_priv, _reg) \
++ ioread16((_priv)->cmu_regs + _reg)
+
-#define XSIR1_IOWRITE(_priv, _reg, _val) \
- iowrite16((_val), (_priv)->sir1_regs + _reg)
--
++#define XCMU_IOWRITE(_priv, _reg, _val) \
++ iowrite16((_val), (_priv)->cmu_regs + _reg)
+
-#define XSIR1_IOWRITE_BITS(_priv, _reg, _field, _val) \
-do { \
- u16 reg_val = XSIR1_IOREAD((_priv), _reg); \
@@ -4981,7 +7558,6 @@ index f3230ee..90145d9 100644
- XSIR1_IOWRITE((_priv), _reg, reg_val); \
-} while (0)
-
--
-/* Macros for reading or writing SerDes RxTx registers
- * The ioread macros will get bit fields or full values using the
- * register definitions formed using the input names
@@ -4992,7 +7568,7 @@ index f3230ee..90145d9 100644
#define XRXTX_IOREAD(_priv, _reg) \
ioread16((_priv)->rxtx_regs + _reg)
-@@ -283,6 +155,77 @@ do { \
+@@ -291,6 +156,78 @@ do { \
XRXTX_IOWRITE((_priv), _reg, reg_val); \
} while (0)
@@ -5067,10 +7643,25 @@ index f3230ee..90145d9 100644
+
+
+DEFINE_SPINLOCK(cmu_lock);
-
++
enum amd_xgbe_phy_an {
AMD_XGBE_AN_READY = 0,
-@@ -321,18 +264,18 @@ struct amd_xgbe_phy_priv {
+ AMD_XGBE_AN_START,
+@@ -316,29 +253,31 @@ enum amd_xgbe_phy_mode {
+ };
+
+ enum amd_xgbe_phy_speedset {
+- AMD_XGBE_PHY_SPEEDSET_1000_10000,
++ AMD_XGBE_PHY_SPEEDSET_1000_10000 = 0,
+ AMD_XGBE_PHY_SPEEDSET_2500_10000,
+ };
+
+ struct amd_xgbe_phy_priv {
+ struct platform_device *pdev;
++ struct acpi_device *adev;
+ struct device *dev;
+
+ struct phy_device *phydev;
/* SerDes related mmio resources */
struct resource *rxtx_res;
@@ -5089,12 +7680,20 @@ index f3230ee..90145d9 100644
/* Maintain link status for re-starting auto-negotiation */
unsigned int link;
- enum amd_xgbe_phy_mode mode;
- unsigned int speed_set;
++ enum amd_xgbe_phy_mode mode;
/* Auto-negotiation state machine support */
struct mutex an_mutex;
-@@ -394,33 +337,51 @@ static int amd_xgbe_phy_pcs_power_cycle(struct phy_device *phydev)
+@@ -348,7 +287,6 @@ struct amd_xgbe_phy_priv {
+ enum amd_xgbe_phy_rx kx_state;
+ struct work_struct an_work;
+ struct workqueue_struct *an_workqueue;
+- unsigned int parallel_detect;
+ };
+
+ static int amd_xgbe_an_enable_kr_training(struct phy_device *phydev)
+@@ -401,33 +339,51 @@ static int amd_xgbe_phy_pcs_power_cycle(struct phy_device *phydev)
static void amd_xgbe_phy_serdes_start_ratechange(struct phy_device *phydev)
{
struct amd_xgbe_phy_priv *priv = phydev->priv;
@@ -5157,7 +7756,7 @@ index f3230ee..90145d9 100644
}
static int amd_xgbe_phy_xgmii_mode(struct phy_device *phydev)
-@@ -428,8 +389,8 @@ static int amd_xgbe_phy_xgmii_mode(struct phy_device *phydev)
+@@ -435,8 +391,8 @@ static int amd_xgbe_phy_xgmii_mode(struct phy_device *phydev)
struct amd_xgbe_phy_priv *priv = phydev->priv;
int ret;
@@ -5168,7 +7767,7 @@ index f3230ee..90145d9 100644
if (ret < 0)
return ret;
-@@ -455,19 +416,30 @@ static int amd_xgbe_phy_xgmii_mode(struct phy_device *phydev)
+@@ -462,19 +418,32 @@ static int amd_xgbe_phy_xgmii_mode(struct phy_device *phydev)
return ret;
/* Set SerDes to 10G speed */
@@ -5183,14 +7782,14 @@ index f3230ee..90145d9 100644
- XSIR1_IOWRITE_BITS(priv, SIR1_SPEED, PI_SPD_SEL, SPEED_10000_CDR);
+ XRXTX_IOWRITE_BITS(priv, RXTX_REG3, TX_DATA_RATE, RXTX_FULL_RATE);
+ XRXTX_IOWRITE_BITS(priv, RXTX_REG3, TX_WORD_MODE, RXTX_66BIT_WORD);
-+
+
+- XRXTX_IOWRITE_BITS(priv, RXTX_REG20, BLWC_ENA, RXTX_10000_BLWC);
+- XRXTX_IOWRITE_BITS(priv, RXTX_REG114, PQ_REG, RXTX_10000_PQ);
+ XRXTX_IOWRITE_BITS(priv, RXTX_REG5, TXAMP_CNTL, RXTX_10G_TX_AMP);
+
+ XRXTX_IOWRITE_BITS(priv, RXTX_REG6, RX_DATA_RATE, RXTX_FULL_RATE);
+ XRXTX_IOWRITE_BITS(priv, RXTX_REG6, RX_WORD_MODE, RXTX_66BIT_WORD);
-
-- XRXTX_IOWRITE_BITS(priv, RXTX_REG20, BLWC_ENA, RXTX_10000_BLWC);
-- XRXTX_IOWRITE_BITS(priv, RXTX_REG114, PQ_REG, RXTX_10000_PQ);
++
+ XRXTX_IOWRITE_BITS(priv, RXTX_REG20, BLWC_ENA, 0);
+
+ XRXTX_IOWRITE_BITS(priv, RXTX_REG53, RX_PLLSELECT, RXTX_10G_PLL);
@@ -5203,10 +7802,12 @@ index f3230ee..90145d9 100644
+ spin_unlock(&cmu_lock);
+
- priv->mode = AMD_XGBE_MODE_KR;
-
++ priv->mode = AMD_XGBE_MODE_KR;
++
return 0;
-@@ -505,19 +477,30 @@ static int amd_xgbe_phy_gmii_2500_mode(struct phy_device *phydev)
+ }
+
+@@ -510,19 +479,32 @@ static int amd_xgbe_phy_gmii_2500_mode(struct phy_device *phydev)
return ret;
/* Set SerDes to 2.5G speed */
@@ -5223,12 +7824,12 @@ index f3230ee..90145d9 100644
+ XRXTX_IOWRITE_BITS(priv, RXTX_REG3, TX_WORD_MODE, RXTX_10BIT_WORD);
+
+ XRXTX_IOWRITE_BITS(priv, RXTX_REG5, TXAMP_CNTL, RXTX_1G_TX_AMP);
++
++ XRXTX_IOWRITE_BITS(priv, RXTX_REG6, RX_DATA_RATE, RXTX_HALF_RATE);
++ XRXTX_IOWRITE_BITS(priv, RXTX_REG6, RX_WORD_MODE, RXTX_10BIT_WORD);
- XRXTX_IOWRITE_BITS(priv, RXTX_REG20, BLWC_ENA, RXTX_2500_BLWC);
- XRXTX_IOWRITE_BITS(priv, RXTX_REG114, PQ_REG, RXTX_2500_PQ);
-+ XRXTX_IOWRITE_BITS(priv, RXTX_REG6, RX_DATA_RATE, RXTX_HALF_RATE);
-+ XRXTX_IOWRITE_BITS(priv, RXTX_REG6, RX_WORD_MODE, RXTX_10BIT_WORD);
-+
+ XRXTX_IOWRITE_BITS(priv, RXTX_REG20, BLWC_ENA, 1);
+
+ XRXTX_IOWRITE_BITS(priv, RXTX_REG53, RX_PLLSELECT, RXTX_1G_PLL);
@@ -5241,10 +7842,12 @@ index f3230ee..90145d9 100644
+ spin_unlock(&cmu_lock);
+
- priv->mode = AMD_XGBE_MODE_KX;
-
++ priv->mode = AMD_XGBE_MODE_KX;
++
return 0;
-@@ -555,19 +538,30 @@ static int amd_xgbe_phy_gmii_mode(struct phy_device *phydev)
+ }
+
+@@ -558,47 +540,33 @@ static int amd_xgbe_phy_gmii_mode(struct phy_device *phydev)
return ret;
/* Set SerDes to 1G speed */
@@ -5259,30 +7862,102 @@ index f3230ee..90145d9 100644
- XSIR1_IOWRITE_BITS(priv, SIR1_SPEED, PI_SPD_SEL, SPEED_1000_CDR);
+ XRXTX_IOWRITE_BITS(priv, RXTX_REG3, TX_DATA_RATE, RXTX_FIFTH_RATE);
+ XRXTX_IOWRITE_BITS(priv, RXTX_REG3, TX_WORD_MODE, RXTX_10BIT_WORD);
-+
-+ XRXTX_IOWRITE_BITS(priv, RXTX_REG5, TXAMP_CNTL, RXTX_1G_TX_AMP);
- XRXTX_IOWRITE_BITS(priv, RXTX_REG20, BLWC_ENA, RXTX_1000_BLWC);
- XRXTX_IOWRITE_BITS(priv, RXTX_REG114, PQ_REG, RXTX_1000_PQ);
++ XRXTX_IOWRITE_BITS(priv, RXTX_REG5, TXAMP_CNTL, RXTX_1G_TX_AMP);
+
+- amd_xgbe_phy_serdes_complete_ratechange(phydev);
+ XRXTX_IOWRITE_BITS(priv, RXTX_REG6, RX_DATA_RATE, RXTX_FIFTH_RATE);
+ XRXTX_IOWRITE_BITS(priv, RXTX_REG6, RX_WORD_MODE, RXTX_10BIT_WORD);
-+
+
+- return 0;
+-}
+ XRXTX_IOWRITE_BITS(priv, RXTX_REG20, BLWC_ENA, 1);
-+
+
+-static int amd_xgbe_phy_cur_mode(struct phy_device *phydev,
+- enum amd_xgbe_phy_mode *mode)
+-{
+- int ret;
+-
+- ret = phy_read_mmd(phydev, MDIO_MMD_PCS, MDIO_CTRL2);
+- if (ret < 0)
+- return ret;
+ XRXTX_IOWRITE_BITS(priv, RXTX_REG53, RX_PLLSELECT, RXTX_1G_PLL);
+ XRXTX_IOWRITE_BITS(priv, RXTX_REG53, TX_PLLSELECT, RXTX_1G_PLL);
+ XRXTX_IOWRITE_BITS(priv, RXTX_REG53, PI_SPD_SEL_CDR, RXTX_1G_CDR);
-+
+
+- if ((ret & MDIO_PCS_CTRL2_TYPE) == MDIO_PCS_CTRL2_10GBR)
+- *mode = AMD_XGBE_MODE_KR;
+- else
+- *mode = AMD_XGBE_MODE_KX;
+ XRXTX_IOWRITE_BITS(priv, RXTX_REG114, PQ_REG, RXTX_1G_PQ);
- amd_xgbe_phy_serdes_complete_ratechange(phydev);
+- return 0;
+-}
++ amd_xgbe_phy_serdes_complete_ratechange(phydev);
+-static bool amd_xgbe_phy_in_kr_mode(struct phy_device *phydev)
+-{
+- enum amd_xgbe_phy_mode mode;
+ spin_unlock(&cmu_lock);
-+
- priv->mode = AMD_XGBE_MODE_KX;
- return 0;
-@@ -639,13 +633,9 @@ static enum amd_xgbe_phy_an amd_xgbe_an_tx_training(struct phy_device *phydev,
+- if (amd_xgbe_phy_cur_mode(phydev, &mode))
+- return false;
++ priv->mode = AMD_XGBE_MODE_KX;
+
+- return (mode == AMD_XGBE_MODE_KR);
++ return 0;
+ }
+
+ static int amd_xgbe_phy_switch_mode(struct phy_device *phydev)
+@@ -607,7 +575,7 @@ static int amd_xgbe_phy_switch_mode(struct phy_device *phydev)
+ int ret;
+
+ /* If we are in KR switch to KX, and vice-versa */
+- if (amd_xgbe_phy_in_kr_mode(phydev)) {
++ if (priv->mode == AMD_XGBE_MODE_KR) {
+ if (priv->speed_set == AMD_XGBE_PHY_SPEEDSET_1000_10000)
+ ret = amd_xgbe_phy_gmii_mode(phydev);
+ else
+@@ -619,20 +587,15 @@ static int amd_xgbe_phy_switch_mode(struct phy_device *phydev)
+ return ret;
+ }
+
+-static int amd_xgbe_phy_set_mode(struct phy_device *phydev,
+- enum amd_xgbe_phy_mode mode)
++static enum amd_xgbe_phy_an amd_xgbe_an_switch_mode(struct phy_device *phydev)
+ {
+- enum amd_xgbe_phy_mode cur_mode;
+ int ret;
+
+- ret = amd_xgbe_phy_cur_mode(phydev, &cur_mode);
+- if (ret)
+- return ret;
+-
+- if (mode != cur_mode)
+- ret = amd_xgbe_phy_switch_mode(phydev);
++ ret = amd_xgbe_phy_switch_mode(phydev);
++ if (ret < 0)
++ return AMD_XGBE_AN_ERROR;
+
+- return ret;
++ return AMD_XGBE_AN_START;
+ }
+
+ static enum amd_xgbe_phy_an amd_xgbe_an_tx_training(struct phy_device *phydev,
+@@ -643,8 +606,8 @@ static enum amd_xgbe_phy_an amd_xgbe_an_tx_training(struct phy_device *phydev,
+
+ *state = AMD_XGBE_RX_COMPLETE;
+
+- /* If we're not in KR mode then we're done */
+- if (!amd_xgbe_phy_in_kr_mode(phydev))
++ /* If we're in KX mode then we're done */
++ if (priv->mode == AMD_XGBE_MODE_KX)
+ return AMD_XGBE_AN_EVENT;
+
+ /* Enable/Disable FEC */
+@@ -672,13 +635,9 @@ static enum amd_xgbe_phy_an amd_xgbe_an_tx_training(struct phy_device *phydev,
if (ret < 0)
return AMD_XGBE_AN_ERROR;
@@ -5296,20 +7971,234 @@ index f3230ee..90145d9 100644
return AMD_XGBE_AN_EVENT;
}
-@@ -1291,21 +1281,33 @@ static int amd_xgbe_phy_probe(struct phy_device *phydev)
- goto err_priv;
- }
+@@ -702,6 +661,7 @@ static enum amd_xgbe_phy_an amd_xgbe_an_tx_xnp(struct phy_device *phydev,
+ static enum amd_xgbe_phy_an amd_xgbe_an_rx_bpa(struct phy_device *phydev,
+ enum amd_xgbe_phy_rx *state)
+ {
++ struct amd_xgbe_phy_priv *priv = phydev->priv;
+ unsigned int link_support;
+ int ret, ad_reg, lp_reg;
-- priv->sir0_res = platform_get_resource(pdev, IORESOURCE_MEM, 1);
-- priv->sir0_regs = devm_ioremap_resource(dev, priv->sir0_res);
-- if (IS_ERR(priv->sir0_regs)) {
-- dev_err(dev, "sir0 ioremap failed\n");
-- ret = PTR_ERR(priv->sir0_regs);
+@@ -711,9 +671,9 @@ static enum amd_xgbe_phy_an amd_xgbe_an_rx_bpa(struct phy_device *phydev,
+ return AMD_XGBE_AN_ERROR;
+
+ /* Check for a supported mode, otherwise restart in a different one */
+- link_support = amd_xgbe_phy_in_kr_mode(phydev) ? 0x80 : 0x20;
++ link_support = (priv->mode == AMD_XGBE_MODE_KR) ? 0x80 : 0x20;
+ if (!(ret & link_support))
+- return AMD_XGBE_AN_INCOMPAT_LINK;
++ return amd_xgbe_an_switch_mode(phydev);
+
+ /* Check Extended Next Page support */
+ ad_reg = phy_read_mmd(phydev, MDIO_MMD_AN, MDIO_AN_ADVERTISE);
+@@ -754,7 +714,7 @@ static enum amd_xgbe_phy_an amd_xgbe_an_start(struct phy_device *phydev)
+ int ret;
+
+ /* Be sure we aren't looping trying to negotiate */
+- if (amd_xgbe_phy_in_kr_mode(phydev)) {
++ if (priv->mode == AMD_XGBE_MODE_KR) {
+ if (priv->kr_state != AMD_XGBE_RX_READY)
+ return AMD_XGBE_AN_NO_LINK;
+ priv->kr_state = AMD_XGBE_RX_BPA;
+@@ -817,13 +777,6 @@ static enum amd_xgbe_phy_an amd_xgbe_an_start(struct phy_device *phydev)
+ /* Enable and start auto-negotiation */
+ phy_write_mmd(phydev, MDIO_MMD_AN, MDIO_AN_INT, 0);
+
+- ret = phy_read_mmd(phydev, MDIO_MMD_AN, MDIO_AN_KR_CTRL);
+- if (ret < 0)
+- return AMD_XGBE_AN_ERROR;
+-
+- ret |= MDIO_KR_CTRL_PDETECT;
+- phy_write_mmd(phydev, MDIO_MMD_AN, MDIO_AN_KR_CTRL, ret);
+-
+ ret = phy_read_mmd(phydev, MDIO_MMD_AN, MDIO_CTRL1);
+ if (ret < 0)
+ return AMD_XGBE_AN_ERROR;
+@@ -864,8 +817,8 @@ static enum amd_xgbe_phy_an amd_xgbe_an_page_received(struct phy_device *phydev)
+ enum amd_xgbe_phy_rx *state;
+ int ret;
+
+- state = amd_xgbe_phy_in_kr_mode(phydev) ? &priv->kr_state
+- : &priv->kx_state;
++ state = (priv->mode == AMD_XGBE_MODE_KR) ? &priv->kr_state
++ : &priv->kx_state;
+
+ switch (*state) {
+ case AMD_XGBE_RX_BPA:
+@@ -885,13 +838,7 @@ static enum amd_xgbe_phy_an amd_xgbe_an_page_received(struct phy_device *phydev)
+
+ static enum amd_xgbe_phy_an amd_xgbe_an_incompat_link(struct phy_device *phydev)
+ {
+- int ret;
+-
+- ret = amd_xgbe_phy_switch_mode(phydev);
+- if (ret)
+- return AMD_XGBE_AN_ERROR;
+-
+- return AMD_XGBE_AN_START;
++ return amd_xgbe_an_switch_mode(phydev);
+ }
+
+ static void amd_xgbe_an_state_machine(struct work_struct *work)
+@@ -904,10 +851,6 @@ static void amd_xgbe_an_state_machine(struct work_struct *work)
+ int sleep;
+ unsigned int an_supported = 0;
+
+- /* Start in KX mode */
+- if (amd_xgbe_phy_set_mode(phydev, AMD_XGBE_MODE_KX))
+- priv->an_state = AMD_XGBE_AN_ERROR;
+-
+ while (1) {
+ mutex_lock(&priv->an_mutex);
+
+@@ -915,9 +858,8 @@ static void amd_xgbe_an_state_machine(struct work_struct *work)
+
+ switch (priv->an_state) {
+ case AMD_XGBE_AN_START:
+- an_supported = 0;
+- priv->parallel_detect = 0;
+ priv->an_state = amd_xgbe_an_start(phydev);
++ an_supported = 0;
+ break;
+
+ case AMD_XGBE_AN_EVENT:
+@@ -934,7 +876,6 @@ static void amd_xgbe_an_state_machine(struct work_struct *work)
+ break;
+
+ case AMD_XGBE_AN_COMPLETE:
+- priv->parallel_detect = an_supported ? 0 : 1;
+ netdev_info(phydev->attached_dev, "%s successful\n",
+ an_supported ? "Auto negotiation"
+ : "Parallel detection");
+@@ -1069,6 +1010,7 @@ static int amd_xgbe_phy_config_aneg(struct phy_device *phydev)
+ {
+ struct amd_xgbe_phy_priv *priv = phydev->priv;
+ u32 mmd_mask = phydev->c45_ids.devices_in_package;
++ int ret;
+
+ if (phydev->autoneg != AUTONEG_ENABLE)
+ return amd_xgbe_phy_setup_forced(phydev);
+@@ -1077,6 +1019,11 @@ static int amd_xgbe_phy_config_aneg(struct phy_device *phydev)
+ if (!(mmd_mask & MDIO_DEVS_AN))
+ return -EINVAL;
+
++ /* Get the current speed mode */
++ ret = phy_read_mmd(phydev, MDIO_MMD_PCS, MDIO_CTRL2);
++ if (ret < 0)
++ return ret;
++
+ /* Start/Restart the auto-negotiation state machine */
+ mutex_lock(&priv->an_mutex);
+ priv->an_result = AMD_XGBE_AN_READY;
+@@ -1166,14 +1113,18 @@ static int amd_xgbe_phy_read_status(struct phy_device *phydev)
+ {
+ struct amd_xgbe_phy_priv *priv = phydev->priv;
+ u32 mmd_mask = phydev->c45_ids.devices_in_package;
+- int ret, ad_ret, lp_ret;
++ int ret, mode, ad_ret, lp_ret;
+
+ ret = amd_xgbe_phy_update_link(phydev);
+ if (ret)
+ return ret;
+
+- if ((phydev->autoneg == AUTONEG_ENABLE) &&
+- !priv->parallel_detect) {
++ mode = phy_read_mmd(phydev, MDIO_MMD_PCS, MDIO_CTRL2);
++ if (mode < 0)
++ return mode;
++ mode &= MDIO_PCS_CTRL2_TYPE;
++
++ if (phydev->autoneg == AUTONEG_ENABLE) {
+ if (!(mmd_mask & MDIO_DEVS_AN))
+ return -EINVAL;
+
+@@ -1204,39 +1155,40 @@ static int amd_xgbe_phy_read_status(struct phy_device *phydev)
+ ad_ret &= lp_ret;
+ if (ad_ret & 0x80) {
+ phydev->speed = SPEED_10000;
+- ret = amd_xgbe_phy_set_mode(phydev, AMD_XGBE_MODE_KR);
+- if (ret)
+- return ret;
++ if (mode != MDIO_PCS_CTRL2_10GBR) {
++ ret = amd_xgbe_phy_xgmii_mode(phydev);
++ if (ret < 0)
++ return ret;
++ }
+ } else {
+- switch (priv->speed_set) {
+- case AMD_XGBE_PHY_SPEEDSET_1000_10000:
+- phydev->speed = SPEED_1000;
+- break;
++ int (*mode_fcn)(struct phy_device *);
+
+- case AMD_XGBE_PHY_SPEEDSET_2500_10000:
++ if (priv->speed_set ==
++ AMD_XGBE_PHY_SPEEDSET_1000_10000) {
++ phydev->speed = SPEED_1000;
++ mode_fcn = amd_xgbe_phy_gmii_mode;
++ } else {
+ phydev->speed = SPEED_2500;
+- break;
++ mode_fcn = amd_xgbe_phy_gmii_2500_mode;
+ }
+
+- ret = amd_xgbe_phy_set_mode(phydev, AMD_XGBE_MODE_KX);
+- if (ret)
+- return ret;
++ if (mode == MDIO_PCS_CTRL2_10GBR) {
++ ret = mode_fcn(phydev);
++ if (ret < 0)
++ return ret;
++ }
+ }
+
+ phydev->duplex = DUPLEX_FULL;
+ } else {
+- if (amd_xgbe_phy_in_kr_mode(phydev)) {
++ if (mode == MDIO_PCS_CTRL2_10GBR) {
+ phydev->speed = SPEED_10000;
+ } else {
+- switch (priv->speed_set) {
+- case AMD_XGBE_PHY_SPEEDSET_1000_10000:
++ if (priv->speed_set ==
++ AMD_XGBE_PHY_SPEEDSET_1000_10000)
+ phydev->speed = SPEED_1000;
+- break;
+-
+- case AMD_XGBE_PHY_SPEEDSET_2500_10000:
++ else
+ phydev->speed = SPEED_2500;
+- break;
+- }
+ }
+ phydev->duplex = DUPLEX_FULL;
+ phydev->pause = 0;
+@@ -1288,29 +1240,188 @@ unlock:
+ return ret;
+ }
+
++static int amd_xgbe_phy_map_resources(struct amd_xgbe_phy_priv *priv,
++ struct platform_device *phy_pdev,
++ unsigned int phy_resnum)
++{
++ struct device *dev = priv->dev;
++ int ret;
++
++ /* Get the device mmio areas */
++ priv->rxtx_res = platform_get_resource(phy_pdev, IORESOURCE_MEM,
++ phy_resnum++);
++ priv->rxtx_regs = devm_ioremap_resource(dev, priv->rxtx_res);
++ if (IS_ERR(priv->rxtx_regs)) {
++ dev_err(dev, "rxtx ioremap failed\n");
++ return PTR_ERR(priv->rxtx_regs);
++ }
++
+ /* All xgbe phy devices share the CMU registers so retrieve
+ * the resource and do the ioremap directly rather than
+ * the devm_ioremap_resource call
+ */
-+ priv->cmu_res = platform_get_resource(pdev, IORESOURCE_MEM, 1);
++ priv->cmu_res = platform_get_resource(phy_pdev, IORESOURCE_MEM,
++ phy_resnum++);
+ if (!priv->cmu_res) {
+ dev_err(dev, "cmu invalid resource\n");
+ ret = -EINVAL;
@@ -5320,54 +8209,258 @@ index f3230ee..90145d9 100644
+ if (!priv->cmu_regs) {
+ dev_err(dev, "cmu ioremap failed\n");
+ ret = -ENOMEM;
- goto err_rxtx;
++ goto err_rxtx;
++ }
++
++ return 0;
++
++err_rxtx:
++ devm_iounmap(dev, priv->rxtx_regs);
++ devm_release_mem_region(dev, priv->rxtx_res->start,
++ resource_size(priv->rxtx_res));
++
++ return ret;
++}
++
++static void amd_xgbe_phy_unmap_resources(struct amd_xgbe_phy_priv *priv)
++{
++ struct device *dev = priv->dev;
++
++ devm_iounmap(dev, priv->cmu_regs);
++
++ devm_iounmap(dev, priv->rxtx_regs);
++ devm_release_mem_region(dev, priv->rxtx_res->start,
++ resource_size(priv->rxtx_res));
++}
++
++#ifdef CONFIG_ACPI
++static int amd_xgbe_phy_acpi_support(struct amd_xgbe_phy_priv *priv)
++{
++ struct platform_device *phy_pdev = priv->pdev;
++ struct acpi_device *adev = priv->adev;
++ struct device *dev = priv->dev;
++ const union acpi_object *property;
++ int ret;
++
++ /* Map the memory resources */
++ ret = amd_xgbe_phy_map_resources(priv, phy_pdev, 2);
++ if (ret)
++ return ret;
++
++ /* Get the device serdes channel property */
++ ret = acpi_dev_get_property(adev, XGBE_PHY_CHANNEL_PROPERTY,
++ ACPI_TYPE_INTEGER, &property);
++ if (ret) {
++ dev_err(dev, "unable to obtain %s acpi property\n",
++ XGBE_PHY_CHANNEL_PROPERTY);
++ goto err_resources;
++ }
++ priv->serdes_channel = property->integer.value;
++
++ /* Get the device speed set property */
++ ret = acpi_dev_get_property(adev, XGBE_PHY_SPEEDSET_PROPERTY,
++ ACPI_TYPE_INTEGER, &property);
++ if (ret) {
++ dev_err(dev, "unable to obtain %s acpi property\n",
++ XGBE_PHY_SPEEDSET_PROPERTY);
++ goto err_resources;
++ }
++ priv->speed_set = property->integer.value;
++
++ return 0;
++
++err_resources:
++ amd_xgbe_phy_unmap_resources(priv);
++
++ return ret;
++}
++#else /* CONFIG_ACPI */
++static int amd_xgbe_phy_acpi_support(struct amd_xgbe_phy_priv *priv)
++{
++ return -EINVAL;
++}
++#endif /* CONFIG_ACPI */
++
++#ifdef CONFIG_OF
++static int amd_xgbe_phy_of_support(struct amd_xgbe_phy_priv *priv)
++{
++ struct platform_device *phy_pdev;
++ struct device_node *bus_node;
++ struct device_node *phy_node;
++ struct device *dev = priv->dev;
++ const __be32 *property;
++ int ret;
++
++ bus_node = priv->dev->of_node;
++ phy_node = of_parse_phandle(bus_node, "phy-handle", 0);
++ if (!phy_node) {
++ dev_err(dev, "unable to parse phy-handle\n");
++ return -EINVAL;
++ }
++
++ phy_pdev = of_find_device_by_node(phy_node);
++ if (!phy_pdev) {
++ dev_err(dev, "unable to obtain phy device\n");
++ ret = -EINVAL;
++ goto err_put;
++ }
++
++ /* Map the memory resources */
++ ret = amd_xgbe_phy_map_resources(priv, phy_pdev, 0);
++ if (ret)
++ goto err_put;
++
++ /* Get the device serdes channel property */
++ property = of_get_property(phy_node, XGBE_PHY_CHANNEL_PROPERTY, NULL);
++ if (!property) {
++ dev_err(dev, "unable to obtain %s property\n",
++ XGBE_PHY_CHANNEL_PROPERTY);
++ ret = -EINVAL;
++ goto err_resources;
++ }
++ priv->serdes_channel = be32_to_cpu(*property);
++
++ /* Get the device speed set property */
++ property = of_get_property(phy_node, XGBE_PHY_SPEEDSET_PROPERTY, NULL);
++ if (property)
++ priv->speed_set = be32_to_cpu(*property);
++
++ of_node_put(phy_node);
++
++ return 0;
++
++err_resources:
++ amd_xgbe_phy_unmap_resources(priv);
++
++err_put:
++ of_node_put(phy_node);
++
++ return ret;
++}
++#else /* CONFIG_OF */
++static int amd_xgbe_phy_of_support(struct amd_xgbe_phy_priv *priv)
++{
++ return -EINVAL;
++}
++#endif /* CONFIG_OF */
++
+ static int amd_xgbe_phy_probe(struct phy_device *phydev)
+ {
+ struct amd_xgbe_phy_priv *priv;
+- struct platform_device *pdev;
+ struct device *dev;
+ char *wq_name;
+- const __be32 *property;
+- unsigned int speed_set;
+ int ret;
+
+- if (!phydev->dev.of_node)
++ if (!phydev->bus || !phydev->bus->parent)
+ return -EINVAL;
+
+- pdev = of_find_device_by_node(phydev->dev.of_node);
+- if (!pdev)
+- return -EINVAL;
+- dev = &pdev->dev;
++ dev = phydev->bus->parent;
+
+ wq_name = kasprintf(GFP_KERNEL, "%s-amd-xgbe-phy", phydev->bus->name);
+- if (!wq_name) {
+- ret = -ENOMEM;
+- goto err_pdev;
+- }
++ if (!wq_name)
++ return -ENOMEM;
+
+ priv = devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL);
+ if (!priv) {
+@@ -1318,86 +1429,54 @@ static int amd_xgbe_phy_probe(struct phy_device *phydev)
+ goto err_name;
}
+- priv->pdev = pdev;
++ priv->pdev = to_platform_device(dev);
++ priv->adev = ACPI_COMPANION(dev);
+ priv->dev = dev;
+ priv->phydev = phydev;
+
+- /* Get the device mmio areas */
+- priv->rxtx_res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+- priv->rxtx_regs = devm_ioremap_resource(dev, priv->rxtx_res);
+- if (IS_ERR(priv->rxtx_regs)) {
+- dev_err(dev, "rxtx ioremap failed\n");
+- ret = PTR_ERR(priv->rxtx_regs);
++ if (priv->adev && !acpi_disabled)
++ ret = amd_xgbe_phy_acpi_support(priv);
++ else
++ ret = amd_xgbe_phy_of_support(priv);
++ if (ret)
+ goto err_priv;
+- }
+-
+- priv->sir0_res = platform_get_resource(pdev, IORESOURCE_MEM, 1);
+- priv->sir0_regs = devm_ioremap_resource(dev, priv->sir0_res);
+- if (IS_ERR(priv->sir0_regs)) {
+- dev_err(dev, "sir0 ioremap failed\n");
+- ret = PTR_ERR(priv->sir0_regs);
+- goto err_rxtx;
+- }
+-
- priv->sir1_res = platform_get_resource(pdev, IORESOURCE_MEM, 2);
- priv->sir1_regs = devm_ioremap_resource(dev, priv->sir1_res);
- if (IS_ERR(priv->sir1_regs)) {
- dev_err(dev, "sir1 ioremap failed\n");
- ret = PTR_ERR(priv->sir1_regs);
- goto err_sir0;
-+ /* Get the device serdes channel property */
-+ property = of_get_property(dev->of_node, XGBE_PHY_CHANNEL_PROPERTY,
-+ NULL);
-+ if (!property) {
-+ dev_err(dev, "unable to obtain serdes_channel property\n");
-+ ret = -EINVAL;
-+ goto err_cmu;
- }
-+ priv->serdes_channel = be32_to_cpu(*property);
+- }
- /* Get the device speed set property */
- speed_set = 0;
-@@ -1324,14 +1326,14 @@ static int amd_xgbe_phy_probe(struct phy_device *phydev)
+- /* Get the device speed set property */
+- speed_set = 0;
+- property = of_get_property(dev->of_node, XGBE_PHY_SPEEDSET_PROPERTY,
+- NULL);
+- if (property)
+- speed_set = be32_to_cpu(*property);
+-
+- switch (speed_set) {
+- case 0:
+- priv->speed_set = AMD_XGBE_PHY_SPEEDSET_1000_10000;
+- break;
+- case 1:
+- priv->speed_set = AMD_XGBE_PHY_SPEEDSET_2500_10000;
++ switch (priv->speed_set) {
++ case AMD_XGBE_PHY_SPEEDSET_1000_10000:
++ case AMD_XGBE_PHY_SPEEDSET_2500_10000:
+ break;
default:
dev_err(dev, "invalid amd,speed-set property\n");
ret = -EINVAL;
- goto err_sir1;
-+ goto err_cmu;
++ goto err_resources;
}
priv->link = 1;
- ret = phy_read_mmd(phydev, MDIO_MMD_PCS, MDIO_CTRL2);
- if (ret < 0)
-- goto err_sir1;
-+ goto err_cmu;
- if ((ret & MDIO_PCS_CTRL2_TYPE) == MDIO_PCS_CTRL2_10GBR)
- priv->mode = AMD_XGBE_MODE_KR;
- else
-@@ -1342,7 +1344,7 @@ static int amd_xgbe_phy_probe(struct phy_device *phydev)
++ ret = phy_read_mmd(phydev, MDIO_MMD_PCS, MDIO_CTRL2);
++ if (ret < 0)
++ goto err_resources;
++ if ((ret & MDIO_PCS_CTRL2_TYPE) == MDIO_PCS_CTRL2_10GBR)
++ priv->mode = AMD_XGBE_MODE_KR;
++ else
++ priv->mode = AMD_XGBE_MODE_KX;
++
+ mutex_init(&priv->an_mutex);
+ INIT_WORK(&priv->an_work, amd_xgbe_an_state_machine);
priv->an_workqueue = create_singlethread_workqueue(wq_name);
if (!priv->an_workqueue) {
ret = -ENOMEM;
- goto err_sir1;
-+ goto err_cmu;
++ goto err_resources;
}
phydev->priv = priv;
-@@ -1352,15 +1354,8 @@ static int amd_xgbe_phy_probe(struct phy_device *phydev)
+
+ kfree(wq_name);
+- of_dev_put(pdev);
return 0;
@@ -5380,12 +8473,27 @@ index f3230ee..90145d9 100644
- devm_iounmap(dev, priv->sir0_regs);
- devm_release_mem_region(dev, priv->sir0_res->start,
- resource_size(priv->sir0_res));
-+err_cmu:
-+ devm_iounmap(dev, priv->cmu_regs);
+-
+-err_rxtx:
+- devm_iounmap(dev, priv->rxtx_regs);
+- devm_release_mem_region(dev, priv->rxtx_res->start,
+- resource_size(priv->rxtx_res));
++err_resources:
++ amd_xgbe_phy_unmap_resources(priv);
+
+ err_priv:
+ devm_kfree(dev, priv);
+@@ -1405,9 +1484,6 @@ err_priv:
+ err_name:
+ kfree(wq_name);
+
+-err_pdev:
+- of_dev_put(pdev);
+-
+ return ret;
+ }
- err_rxtx:
- devm_iounmap(dev, priv->rxtx_regs);
-@@ -1392,14 +1387,7 @@ static void amd_xgbe_phy_remove(struct phy_device *phydev)
+@@ -1424,18 +1500,7 @@ static void amd_xgbe_phy_remove(struct phy_device *phydev)
flush_workqueue(priv->an_workqueue);
destroy_workqueue(priv->an_workqueue);
@@ -5397,1334 +8505,222 @@ index f3230ee..90145d9 100644
- devm_iounmap(dev, priv->sir0_regs);
- devm_release_mem_region(dev, priv->sir0_res->start,
- resource_size(priv->sir0_res));
-+ devm_iounmap(dev, priv->cmu_regs);
-
- devm_iounmap(dev, priv->rxtx_regs);
- devm_release_mem_region(dev, priv->rxtx_res->start,
-diff --git a/drivers/of/address.c b/drivers/of/address.c
-index e371825..afdb782 100644
---- a/drivers/of/address.c
-+++ b/drivers/of/address.c
-@@ -5,6 +5,8 @@
- #include <linux/module.h>
- #include <linux/of_address.h>
- #include <linux/pci_regs.h>
-+#include <linux/sizes.h>
-+#include <linux/slab.h>
- #include <linux/string.h>
+-
+- devm_iounmap(dev, priv->rxtx_regs);
+- devm_release_mem_region(dev, priv->rxtx_res->start,
+- resource_size(priv->rxtx_res));
++ amd_xgbe_phy_unmap_resources(priv);
- /* Max address size we deal with */
-@@ -293,6 +295,51 @@ struct of_pci_range *of_pci_range_parser_one(struct of_pci_range_parser *parser,
+ devm_kfree(dev, priv);
}
- EXPORT_SYMBOL_GPL(of_pci_range_parser_one);
+diff --git a/drivers/of/base.c b/drivers/of/base.c
+index 2305dc0..43999a8 100644
+--- a/drivers/of/base.c
++++ b/drivers/of/base.c
+@@ -1250,6 +1250,39 @@ int of_property_read_u64(const struct device_node *np, const char *propname,
+ EXPORT_SYMBOL_GPL(of_property_read_u64);
-+/*
-+ * of_pci_range_to_resource - Create a resource from an of_pci_range
-+ * @range: the PCI range that describes the resource
-+ * @np: device node where the range belongs to
-+ * @res: pointer to a valid resource that will be updated to
-+ * reflect the values contained in the range.
+ /**
++ * of_property_read_u64_array - Find and read an array of 64 bit integers
++ * from a property.
+ *
-+ * Returns EINVAL if the range cannot be converted to resource.
++ * @np: device node from which the property value is to be read.
++ * @propname: name of the property to be searched.
++ * @out_values: pointer to return value, modified only if return value is 0.
++ * @sz: number of array elements to read
+ *
-+ * Note that if the range is an IO range, the resource will be converted
-+ * using pci_address_to_pio() which can fail if it is called too early or
-+ * if the range cannot be matched to any host bridge IO space (our case here).
-+ * To guard against that we try to register the IO range first.
-+ * If that fails we know that pci_address_to_pio() will do too.
-+ */
-+int of_pci_range_to_resource(struct of_pci_range *range,
-+ struct device_node *np, struct resource *res)
-+{
-+ int err;
-+ res->flags = range->flags;
-+ res->parent = res->child = res->sibling = NULL;
-+ res->name = np->full_name;
-+
-+ if (res->flags & IORESOURCE_IO) {
-+ unsigned long port;
-+ err = pci_register_io_range(range->cpu_addr, range->size);
-+ if (err)
-+ goto invalid_range;
-+ port = pci_address_to_pio(range->cpu_addr);
-+ if (port == (unsigned long)-1) {
-+ err = -EINVAL;
-+ goto invalid_range;
-+ }
-+ res->start = port;
-+ } else {
-+ res->start = range->cpu_addr;
-+ }
-+ res->end = res->start + range->size - 1;
-+ return 0;
-+
-+invalid_range:
-+ res->start = (resource_size_t)OF_BAD_ADDR;
-+ res->end = (resource_size_t)OF_BAD_ADDR;
-+ return err;
-+}
- #endif /* CONFIG_PCI */
-
- /*
-@@ -601,12 +648,119 @@ const __be32 *of_get_address(struct device_node *dev, int index, u64 *size,
- }
- EXPORT_SYMBOL(of_get_address);
-
-+#ifdef PCI_IOBASE
-+struct io_range {
-+ struct list_head list;
-+ phys_addr_t start;
-+ resource_size_t size;
-+};
-+
-+static LIST_HEAD(io_range_list);
-+static DEFINE_SPINLOCK(io_range_lock);
-+#endif
-+
-+/*
-+ * Record the PCI IO range (expressed as CPU physical address + size).
-+ * Return a negative value if an error has occured, zero otherwise
++ * Search for a property in a device node and read 64-bit value(s) from
++ * it. Returns 0 on success, -EINVAL if the property does not exist,
++ * -ENODATA if property does not have a value, and -EOVERFLOW if the
++ * property data isn't large enough.
++ *
++ * The out_values is modified only if a valid u64 value can be decoded.
+ */
-+int __weak pci_register_io_range(phys_addr_t addr, resource_size_t size)
++int of_property_read_u64_array(const struct device_node *np,
++ const char *propname, u64 *out_values,
++ size_t sz)
+{
-+ int err = 0;
++ const __be32 *val = of_find_property_value_of_size(np, propname,
++ (sz * sizeof(*out_values)));
+
-+#ifdef PCI_IOBASE
-+ struct io_range *range;
-+ resource_size_t allocated_size = 0;
++ if (IS_ERR(val))
++ return PTR_ERR(val);
+
-+ /* check if the range hasn't been previously recorded */
-+ spin_lock(&io_range_lock);
-+ list_for_each_entry(range, &io_range_list, list) {
-+ if (addr >= range->start && addr + size <= range->start + size) {
-+ /* range already registered, bail out */
-+ goto end_register;
-+ }
-+ allocated_size += range->size;
-+ }
-+
-+ /* range not registed yet, check for available space */
-+ if (allocated_size + size - 1 > IO_SPACE_LIMIT) {
-+ /* if it's too big check if 64K space can be reserved */
-+ if (allocated_size + SZ_64K - 1 > IO_SPACE_LIMIT) {
-+ err = -E2BIG;
-+ goto end_register;
-+ }
-+
-+ size = SZ_64K;
-+ pr_warn("Requested IO range too big, new size set to 64K\n");
-+ }
-+
-+ /* add the range to the list */
-+ range = kzalloc(sizeof(*range), GFP_KERNEL);
-+ if (!range) {
-+ err = -ENOMEM;
-+ goto end_register;
-+ }
-+
-+ range->start = addr;
-+ range->size = size;
-+
-+ list_add_tail(&range->list, &io_range_list);
-+
-+end_register:
-+ spin_unlock(&io_range_lock);
-+#endif
-+
-+ return err;
-+}
-+
-+phys_addr_t pci_pio_to_address(unsigned long pio)
-+{
-+ phys_addr_t address = (phys_addr_t)OF_BAD_ADDR;
-+
-+#ifdef PCI_IOBASE
-+ struct io_range *range;
-+ resource_size_t allocated_size = 0;
-+
-+ if (pio > IO_SPACE_LIMIT)
-+ return address;
-+
-+ spin_lock(&io_range_lock);
-+ list_for_each_entry(range, &io_range_list, list) {
-+ if (pio >= allocated_size && pio < allocated_size + range->size) {
-+ address = range->start + pio - allocated_size;
-+ break;
-+ }
-+ allocated_size += range->size;
++ while (sz--) {
++ *out_values++ = of_read_number(val, 2);
++ val += 2;
+ }
-+ spin_unlock(&io_range_lock);
-+#endif
-+
-+ return address;
++ return 0;
+}
+
- unsigned long __weak pci_address_to_pio(phys_addr_t address)
- {
-+#ifdef PCI_IOBASE
-+ struct io_range *res;
-+ resource_size_t offset = 0;
-+ unsigned long addr = -1;
-+
-+ spin_lock(&io_range_lock);
-+ list_for_each_entry(res, &io_range_list, list) {
-+ if (address >= res->start && address < res->start + res->size) {
-+ addr = res->start - address + offset;
-+ break;
-+ }
-+ offset += res->size;
-+ }
-+ spin_unlock(&io_range_lock);
-+
-+ return addr;
-+#else
- if (address > IO_SPACE_LIMIT)
- return (unsigned long)-1;
-
- return (unsigned long) address;
-+#endif
- }
-
- static int __of_address_to_resource(struct device_node *dev,
-diff --git a/drivers/of/of_pci.c b/drivers/of/of_pci.c
-index 8481996..8882b46 100644
---- a/drivers/of/of_pci.c
-+++ b/drivers/of/of_pci.c
-@@ -1,7 +1,9 @@
- #include <linux/kernel.h>
- #include <linux/export.h>
- #include <linux/of.h>
-+#include <linux/of_address.h>
- #include <linux/of_pci.h>
-+#include <linux/slab.h>
-
- static inline int __of_pci_pci_compare(struct device_node *node,
- unsigned int data)
-@@ -89,6 +91,146 @@ int of_pci_parse_bus_range(struct device_node *node, struct resource *res)
++/**
+ * of_property_read_string - Find and read a string from a property
+ * @np: device node from which the property value is to be read.
+ * @propname: name of the property to be searched.
+@@ -1397,6 +1430,49 @@ int of_property_count_strings(struct device_node *np, const char *propname)
}
- EXPORT_SYMBOL_GPL(of_pci_parse_bus_range);
+ EXPORT_SYMBOL_GPL(of_property_count_strings);
+/**
-+ * This function will try to obtain the host bridge domain number by
-+ * finding a property called "linux,pci-domain" of the given device node.
++ * of_property_read_string_array - Find and read an array of strings
++ * from a multiple strings property.
++ * @np: device node from which the property value is to be read.
++ * @propname: name of the property to be searched.
++ * @out_string: pointer to null terminated return string, modified only if
++ * return value is 0.
++ * @sz: number of array elements to read
+ *
-+ * @node: device tree node with the domain information
++ * Search for a property in a device tree node and retrieve a list of
++ * terminated string value (pointer to data, not a copy) in that property.
++ * Returns 0 on success, -EINVAL if the property does not exist, -ENODATA if
++ * property does not have a value, and -EOVERFLOW if the string is not
++ * null-terminated within the length of the property data.
+ *
-+ * Returns the associated domain number from DT in the range [0-0xffff], or
-+ * a negative value if the required property is not found.
++ * The out_string pointer is modified only if a valid string can be decoded.
+ */
-+int of_get_pci_domain_nr(struct device_node *node)
++int of_property_read_string_array(struct device_node *np, const char *propname,
++ char **output, size_t sz)
+{
-+ const __be32 *value;
-+ int len;
-+ u16 domain;
++ struct property *prop = of_find_property(np, propname, NULL);
++ int i = 0;
++ size_t l = 0, total = 0;
++ char *p;
+
-+ value = of_get_property(node, "linux,pci-domain", &len);
-+ if (!value || len < sizeof(*value))
++ if (!prop)
+ return -EINVAL;
+
-+ domain = (u16)be32_to_cpup(value);
-+
-+ return domain;
-+}
-+EXPORT_SYMBOL_GPL(of_get_pci_domain_nr);
-+
-+#if defined(CONFIG_OF_ADDRESS)
-+/**
-+ * of_pci_get_host_bridge_resources - Parse PCI host bridge resources from DT
-+ * @dev: device node of the host bridge having the range property
-+ * @busno: bus number associated with the bridge root bus
-+ * @bus_max: maximum number of buses for this bridge
-+ * @resources: list where the range of resources will be added after DT parsing
-+ * @io_base: pointer to a variable that will contain on return the physical
-+ * address for the start of the I/O range. Can be NULL if the caller doesn't
-+ * expect IO ranges to be present in the device tree.
-+ *
-+ * It is the caller's job to free the @resources list.
-+ *
-+ * This function will parse the "ranges" property of a PCI host bridge device
-+ * node and setup the resource mapping based on its content. It is expected
-+ * that the property conforms with the Power ePAPR document.
-+ *
-+ * It returns zero if the range parsing has been successful or a standard error
-+ * value if it failed.
-+ */
-+int of_pci_get_host_bridge_resources(struct device_node *dev,
-+ unsigned char busno, unsigned char bus_max,
-+ struct list_head *resources, resource_size_t *io_base)
-+{
-+ struct resource *res;
-+ struct resource *bus_range;
-+ struct of_pci_range range;
-+ struct of_pci_range_parser parser;
-+ char range_type[4];
-+ int err;
-+
-+ if (io_base)
-+ *io_base = (resource_size_t)OF_BAD_ADDR;
-+
-+ bus_range = kzalloc(sizeof(*bus_range), GFP_KERNEL);
-+ if (!bus_range)
-+ return -ENOMEM;
-+
-+ pr_info("PCI host bridge %s ranges:\n", dev->full_name);
-+
-+ err = of_pci_parse_bus_range(dev, bus_range);
-+ if (err) {
-+ bus_range->start = busno;
-+ bus_range->end = bus_max;
-+ bus_range->flags = IORESOURCE_BUS;
-+ pr_info(" No bus range found for %s, using %pR\n",
-+ dev->full_name, bus_range);
-+ } else {
-+ if (bus_range->end > bus_range->start + bus_max)
-+ bus_range->end = bus_range->start + bus_max;
-+ }
-+ pci_add_resource(resources, bus_range);
-+
-+ /* Check for ranges property */
-+ err = of_pci_range_parser_init(&parser, dev);
-+ if (err)
-+ goto parse_failed;
-+
-+ pr_debug("Parsing ranges property...\n");
-+ for_each_of_pci_range(&parser, &range) {
-+ /* Read next ranges element */
-+ if ((range.flags & IORESOURCE_TYPE_BITS) == IORESOURCE_IO)
-+ snprintf(range_type, 4, " IO");
-+ else if ((range.flags & IORESOURCE_TYPE_BITS) == IORESOURCE_MEM)
-+ snprintf(range_type, 4, "MEM");
-+ else
-+ snprintf(range_type, 4, "err");
-+ pr_info(" %s %#010llx..%#010llx -> %#010llx\n", range_type,
-+ range.cpu_addr, range.cpu_addr + range.size - 1,
-+ range.pci_addr);
-+
-+ /*
-+ * If we failed translation or got a zero-sized region
-+ * then skip this range
-+ */
-+ if (range.cpu_addr == OF_BAD_ADDR || range.size == 0)
-+ continue;
++ if (!prop->value)
++ return -ENODATA;
+
-+ res = kzalloc(sizeof(struct resource), GFP_KERNEL);
-+ if (!res) {
-+ err = -ENOMEM;
-+ goto parse_failed;
-+ }
++ if (strnlen(prop->value, prop->length) >= prop->length)
++ return -EOVERFLOW;
+
-+ err = of_pci_range_to_resource(&range, dev, res);
-+ if (err)
-+ goto conversion_failed;
-+
-+ if (resource_type(res) == IORESOURCE_IO) {
-+ if (!io_base) {
-+ pr_err("I/O range found for %s. Please provide an io_base pointer to save CPU base address\n",
-+ dev->full_name);
-+ err = -EINVAL;
-+ goto conversion_failed;
-+ }
-+ if (*io_base != (resource_size_t)OF_BAD_ADDR)
-+ pr_warn("More than one I/O resource converted for %s. CPU base address for old range lost!\n",
-+ dev->full_name);
-+ *io_base = range.cpu_addr;
-+ }
++ p = prop->value;
+
-+ pci_add_resource_offset(resources, res, res->start - range.pci_addr);
++ for (i = 0; total < prop->length; total += l, p += l) {
++ output[i++] = p;
++ l = strlen(p) + 1;
+ }
-+
+ return 0;
-+
-+conversion_failed:
-+ kfree(res);
-+parse_failed:
-+ pci_free_resource_list(resources);
-+ return err;
+}
-+EXPORT_SYMBOL_GPL(of_pci_get_host_bridge_resources);
-+#endif /* CONFIG_OF_ADDRESS */
+
- #ifdef CONFIG_PCI_MSI
-
- static LIST_HEAD(of_pci_msi_chip_list);
-diff --git a/drivers/pci/host/Kconfig b/drivers/pci/host/Kconfig
-index 90f5cca..382fd3d 100644
---- a/drivers/pci/host/Kconfig
-+++ b/drivers/pci/host/Kconfig
-@@ -63,4 +63,14 @@ config PCIE_SPEAR13XX
- help
- Say Y here if you want PCIe support on SPEAr13XX SoCs.
-
-+config PCI_XGENE
-+ bool "X-Gene PCIe controller"
-+ depends on ARCH_XGENE
-+ depends on OF
-+ select PCIEPORTBUS
-+ help
-+ Say Y here if you want internal PCI support on APM X-Gene SoC.
-+ There are 5 internal PCIe ports available. Each port is GEN3 capable
-+ and have varied lanes from x1 to x8.
-+
- endmenu
-diff --git a/drivers/pci/host/Makefile b/drivers/pci/host/Makefile
-index d0e88f1..845611f 100644
---- a/drivers/pci/host/Makefile
-+++ b/drivers/pci/host/Makefile
-@@ -8,3 +8,4 @@ obj-$(CONFIG_PCI_RCAR_GEN2) += pci-rcar-gen2.o
- obj-$(CONFIG_PCI_RCAR_GEN2_PCIE) += pcie-rcar.o
- obj-$(CONFIG_PCI_HOST_GENERIC) += pci-host-generic.o
- obj-$(CONFIG_PCIE_SPEAR13XX) += pcie-spear13xx.o
-+obj-$(CONFIG_PCI_XGENE) += pci-xgene.o
-diff --git a/drivers/pci/host/pci-tegra.c b/drivers/pci/host/pci-tegra.c
-index 0fb0fdb..946935d 100644
---- a/drivers/pci/host/pci-tegra.c
-+++ b/drivers/pci/host/pci-tegra.c
-@@ -626,13 +626,14 @@ DECLARE_PCI_FIXUP_FINAL(PCI_ANY_ID, PCI_ANY_ID, tegra_pcie_relax_enable);
- static int tegra_pcie_setup(int nr, struct pci_sys_data *sys)
+ void of_print_phandle_args(const char *msg, const struct of_phandle_args *args)
{
- struct tegra_pcie *pcie = sys_to_pcie(sys);
-+ phys_addr_t io_start = pci_pio_to_address(pcie->io.start);
-
- pci_add_resource_offset(&sys->resources, &pcie->mem, sys->mem_offset);
- pci_add_resource_offset(&sys->resources, &pcie->prefetch,
- sys->mem_offset);
- pci_add_resource(&sys->resources, &pcie->busn);
-
-- pci_ioremap_io(nr * SZ_64K, pcie->io.start);
-+ pci_ioremap_io(nr * SZ_64K, io_start);
-
- return 1;
+ int i;
+@@ -2186,3 +2262,113 @@ struct device_node *of_graph_get_remote_port(const struct device_node *node)
+ return of_get_next_parent(np);
}
-@@ -737,6 +738,7 @@ static irqreturn_t tegra_pcie_isr(int irq, void *arg)
- static void tegra_pcie_setup_translations(struct tegra_pcie *pcie)
- {
- u32 fpci_bar, size, axi_address;
-+ phys_addr_t io_start = pci_pio_to_address(pcie->io.start);
-
- /* Bar 0: type 1 extended configuration space */
- fpci_bar = 0xfe100000;
-@@ -749,7 +751,7 @@ static void tegra_pcie_setup_translations(struct tegra_pcie *pcie)
- /* Bar 1: downstream IO bar */
- fpci_bar = 0xfdfc0000;
- size = resource_size(&pcie->io);
-- axi_address = pcie->io.start;
-+ axi_address = io_start;
- afi_writel(pcie, axi_address, AFI_AXI_BAR1_START);
- afi_writel(pcie, size >> 12, AFI_AXI_BAR1_SZ);
- afi_writel(pcie, fpci_bar, AFI_FPCI_BAR1);
-@@ -1520,7 +1522,9 @@ static int tegra_pcie_parse_dt(struct tegra_pcie *pcie)
- }
-
- for_each_of_pci_range(&parser, &range) {
-- of_pci_range_to_resource(&range, np, &res);
-+ err = of_pci_range_to_resource(&range, np, &res);
-+ if (err < 0)
-+ return err;
-
- switch (res.flags & IORESOURCE_TYPE_BITS) {
- case IORESOURCE_IO:
-diff --git a/drivers/pci/host/pci-xgene.c b/drivers/pci/host/pci-xgene.c
-new file mode 100644
-index 0000000..41c76b8
---- /dev/null
-+++ b/drivers/pci/host/pci-xgene.c
-@@ -0,0 +1,659 @@
-+/**
-+ * APM X-Gene PCIe Driver
-+ *
-+ * Copyright (c) 2014 Applied Micro Circuits Corporation.
-+ *
-+ * Author: Tanmay Inamdar <tinamdar@apm.com>.
-+ *
-+ * This program is free software; you can redistribute it and/or modify it
-+ * under the terms of the GNU General Public License as published by the
-+ * Free Software Foundation; either version 2 of the License, or (at your
-+ * option) any later version.
-+ *
-+ * This program is distributed in the hope that it will be useful,
-+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
-+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-+ * GNU General Public License for more details.
-+ *
-+ */
-+#include <linux/clk-private.h>
-+#include <linux/delay.h>
-+#include <linux/io.h>
-+#include <linux/jiffies.h>
-+#include <linux/memblock.h>
-+#include <linux/module.h>
-+#include <linux/of.h>
-+#include <linux/of_address.h>
-+#include <linux/of_irq.h>
-+#include <linux/of_pci.h>
-+#include <linux/pci.h>
-+#include <linux/platform_device.h>
-+#include <linux/slab.h>
-+
-+#define PCIECORE_CTLANDSTATUS 0x50
-+#define PIM1_1L 0x80
-+#define IBAR2 0x98
-+#define IR2MSK 0x9c
-+#define PIM2_1L 0xa0
-+#define IBAR3L 0xb4
-+#define IR3MSKL 0xbc
-+#define PIM3_1L 0xc4
-+#define OMR1BARL 0x100
-+#define OMR2BARL 0x118
-+#define OMR3BARL 0x130
-+#define CFGBARL 0x154
-+#define CFGBARH 0x158
-+#define CFGCTL 0x15c
-+#define RTDID 0x160
-+#define BRIDGE_CFG_0 0x2000
-+#define BRIDGE_CFG_4 0x2010
-+#define BRIDGE_STATUS_0 0x2600
-+
-+#define LINK_UP_MASK 0x00000100
-+#define AXI_EP_CFG_ACCESS 0x10000
-+#define EN_COHERENCY 0xF0000000
-+#define EN_REG 0x00000001
-+#define OB_LO_IO 0x00000002
-+#define XGENE_PCIE_VENDORID 0x10E8
-+#define XGENE_PCIE_DEVICEID 0xE004
-+#define SZ_1T (SZ_1G*1024ULL)
-+#define PIPE_PHY_RATE_RD(src) ((0xc000 & (u32)(src)) >> 0xe)
-+
-+struct xgene_pcie_port {
-+ struct device_node *node;
-+ struct device *dev;
-+ struct clk *clk;
-+ void __iomem *csr_base;
-+ void __iomem *cfg_base;
-+ unsigned long cfg_addr;
-+ bool link_up;
-+};
-+
-+static inline u32 pcie_bar_low_val(u32 addr, u32 flags)
-+{
-+ return (addr & PCI_BASE_ADDRESS_MEM_MASK) | flags;
-+}
-+
-+/* PCIE Configuration Out/In */
-+static inline void xgene_pcie_cfg_out32(void __iomem *addr, int offset, u32 val)
-+{
-+ writel(val, addr + offset);
-+}
-+
-+static inline void xgene_pcie_cfg_out16(void __iomem *addr, int offset, u16 val)
-+{
-+ u32 val32 = readl(addr + (offset & ~0x3));
-+
-+ switch (offset & 0x3) {
-+ case 2:
-+ val32 &= ~0xFFFF0000;
-+ val32 |= (u32)val << 16;
-+ break;
-+ case 0:
-+ default:
-+ val32 &= ~0xFFFF;
-+ val32 |= val;
-+ break;
-+ }
-+ writel(val32, addr + (offset & ~0x3));
-+}
-+
-+static inline void xgene_pcie_cfg_out8(void __iomem *addr, int offset, u8 val)
-+{
-+ u32 val32 = readl(addr + (offset & ~0x3));
-+
-+ switch (offset & 0x3) {
-+ case 0:
-+ val32 &= ~0xFF;
-+ val32 |= val;
-+ break;
-+ case 1:
-+ val32 &= ~0xFF00;
-+ val32 |= (u32)val << 8;
-+ break;
-+ case 2:
-+ val32 &= ~0xFF0000;
-+ val32 |= (u32)val << 16;
-+ break;
-+ case 3:
-+ default:
-+ val32 &= ~0xFF000000;
-+ val32 |= (u32)val << 24;
-+ break;
-+ }
-+ writel(val32, addr + (offset & ~0x3));
-+}
-+
-+static inline void xgene_pcie_cfg_in32(void __iomem *addr, int offset, u32 *val)
-+{
-+ *val = readl(addr + offset);
-+}
-+
-+static inline void xgene_pcie_cfg_in16(void __iomem *addr, int offset, u32 *val)
-+{
-+ *val = readl(addr + (offset & ~0x3));
-+
-+ switch (offset & 0x3) {
-+ case 2:
-+ *val >>= 16;
-+ break;
-+ }
-+
-+ *val &= 0xFFFF;
-+}
-+
-+static inline void xgene_pcie_cfg_in8(void __iomem *addr, int offset, u32 *val)
-+{
-+ *val = readl(addr + (offset & ~0x3));
-+
-+ switch (offset & 0x3) {
-+ case 3:
-+ *val = *val >> 24;
-+ break;
-+ case 2:
-+ *val = *val >> 16;
-+ break;
-+ case 1:
-+ *val = *val >> 8;
-+ break;
-+ }
-+ *val &= 0xFF;
-+}
-+
-+/*
-+ * When the address bit [17:16] is 2'b01, the Configuration access will be
-+ * treated as Type 1 and it will be forwarded to external PCIe device.
-+ */
-+static void __iomem *xgene_pcie_get_cfg_base(struct pci_bus *bus)
-+{
-+ struct xgene_pcie_port *port = bus->sysdata;
-+
-+ if (bus->number >= (bus->primary + 1))
-+ return port->cfg_base + AXI_EP_CFG_ACCESS;
-+
-+ return port->cfg_base;
-+}
-+
-+/*
-+ * For Configuration request, RTDID register is used as Bus Number,
-+ * Device Number and Function number of the header fields.
-+ */
-+static void xgene_pcie_set_rtdid_reg(struct pci_bus *bus, uint devfn)
-+{
-+ struct xgene_pcie_port *port = bus->sysdata;
-+ unsigned int b, d, f;
-+ u32 rtdid_val = 0;
-+
-+ b = bus->number;
-+ d = PCI_SLOT(devfn);
-+ f = PCI_FUNC(devfn);
-+
-+ if (!pci_is_root_bus(bus))
-+ rtdid_val = (b << 8) | (d << 3) | f;
-+
-+ writel(rtdid_val, port->csr_base + RTDID);
-+ /* read the register back to ensure flush */
-+ readl(port->csr_base + RTDID);
-+}
-+
-+/*
-+ * X-Gene PCIe port uses BAR0-BAR1 of RC's configuration space as
-+ * the translation between PCI bus to native BUS. Entire DDR region
-+ * is mapped on to PCIe space using these registers, so that it is
-+ * accessible for EP devices for DMA. The BAR0/1 of bridge should be
-+ * hidden during enumeration to avoid the sizing and resource allocation
-+ * by PCIe core.
-+ */
-+static bool xgene_pcie_hide_rc_bars(struct pci_bus *bus, int offset)
-+{
-+ if (pci_is_root_bus(bus) && ((offset == PCI_BASE_ADDRESS_0) ||
-+ (offset == PCI_BASE_ADDRESS_1)))
-+ return true;
-+
-+ return false;
-+}
-+
-+static int xgene_pcie_read_config(struct pci_bus *bus, unsigned int devfn,
-+ int offset, int len, u32 *val)
-+{
-+ struct xgene_pcie_port *port = bus->sysdata;
-+ void __iomem *addr;
-+
-+ if ((pci_is_root_bus(bus) && devfn != 0) || !port->link_up)
-+ return PCIBIOS_DEVICE_NOT_FOUND;
-+
-+ if (xgene_pcie_hide_rc_bars(bus, offset)) {
-+ *val = 0;
-+ return PCIBIOS_SUCCESSFUL;
-+ }
-+
-+ xgene_pcie_set_rtdid_reg(bus, devfn);
-+ addr = xgene_pcie_get_cfg_base(bus);
-+ switch (len) {
-+ case 1:
-+ xgene_pcie_cfg_in8(addr, offset, val);
-+ break;
-+ case 2:
-+ xgene_pcie_cfg_in16(addr, offset, val);
-+ break;
-+ default:
-+ xgene_pcie_cfg_in32(addr, offset, val);
-+ break;
-+ }
-+
-+ return PCIBIOS_SUCCESSFUL;
-+}
-+
-+static int xgene_pcie_write_config(struct pci_bus *bus, unsigned int devfn,
-+ int offset, int len, u32 val)
-+{
-+ struct xgene_pcie_port *port = bus->sysdata;
-+ void __iomem *addr;
+ EXPORT_SYMBOL(of_graph_get_remote_port);
+
-+ if ((pci_is_root_bus(bus) && devfn != 0) || !port->link_up)
-+ return PCIBIOS_DEVICE_NOT_FOUND;
-+
-+ if (xgene_pcie_hide_rc_bars(bus, offset))
-+ return PCIBIOS_SUCCESSFUL;
-+
-+ xgene_pcie_set_rtdid_reg(bus, devfn);
-+ addr = xgene_pcie_get_cfg_base(bus);
-+ switch (len) {
-+ case 1:
-+ xgene_pcie_cfg_out8(addr, offset, (u8)val);
-+ break;
-+ case 2:
-+ xgene_pcie_cfg_out16(addr, offset, (u16)val);
-+ break;
-+ default:
-+ xgene_pcie_cfg_out32(addr, offset, val);
-+ break;
-+ }
-+
-+ return PCIBIOS_SUCCESSFUL;
-+}
-+
-+static struct pci_ops xgene_pcie_ops = {
-+ .read = xgene_pcie_read_config,
-+ .write = xgene_pcie_write_config
-+};
-+
-+static u64 xgene_pcie_set_ib_mask(void __iomem *csr_base, u32 addr,
-+ u32 flags, u64 size)
-+{
-+ u64 mask = (~(size - 1) & PCI_BASE_ADDRESS_MEM_MASK) | flags;
-+ u32 val32 = 0;
-+ u32 val;
-+
-+ val32 = readl(csr_base + addr);
-+ val = (val32 & 0x0000ffff) | (lower_32_bits(mask) << 16);
-+ writel(val, csr_base + addr);
-+
-+ val32 = readl(csr_base + addr + 0x04);
-+ val = (val32 & 0xffff0000) | (lower_32_bits(mask) >> 16);
-+ writel(val, csr_base + addr + 0x04);
-+
-+ val32 = readl(csr_base + addr + 0x04);
-+ val = (val32 & 0x0000ffff) | (upper_32_bits(mask) << 16);
-+ writel(val, csr_base + addr + 0x04);
-+
-+ val32 = readl(csr_base + addr + 0x08);
-+ val = (val32 & 0xffff0000) | (upper_32_bits(mask) >> 16);
-+ writel(val, csr_base + addr + 0x08);
-+
-+ return mask;
-+}
-+
-+static void xgene_pcie_linkup(struct xgene_pcie_port *port,
-+ u32 *lanes, u32 *speed)
++int of_dev_prop_get(struct device_node *dn, const char *propname, void **valptr)
+{
-+ void __iomem *csr_base = port->csr_base;
-+ u32 val32;
++ struct property *pp = of_find_property(dn, propname, NULL);
+
-+ port->link_up = false;
-+ val32 = readl(csr_base + PCIECORE_CTLANDSTATUS);
-+ if (val32 & LINK_UP_MASK) {
-+ port->link_up = true;
-+ *speed = PIPE_PHY_RATE_RD(val32);
-+ val32 = readl(csr_base + BRIDGE_STATUS_0);
-+ *lanes = val32 >> 26;
-+ }
-+}
-+
-+static int xgene_pcie_init_port(struct xgene_pcie_port *port)
-+{
-+ int rc;
-+
-+ port->clk = clk_get(port->dev, NULL);
-+ if (IS_ERR(port->clk)) {
-+ dev_err(port->dev, "clock not available\n");
-+ return -ENODEV;
-+ }
-+
-+ rc = clk_prepare_enable(port->clk);
-+ if (rc) {
-+ dev_err(port->dev, "clock enable failed\n");
-+ return rc;
-+ }
++ if (!pp)
++ return -ENODATA;
+
++ if (valptr)
++ *valptr = pp->value;
+ return 0;
+}
+
-+static int xgene_pcie_map_reg(struct xgene_pcie_port *port,
-+ struct platform_device *pdev)
++int of_dev_prop_read(struct device_node *dn, const char *propname,
++ enum dev_prop_type proptype, void *val)
+{
-+ struct resource *res;
-+
-+ res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "csr");
-+ port->csr_base = devm_ioremap_resource(port->dev, res);
-+ if (IS_ERR(port->csr_base))
-+ return PTR_ERR(port->csr_base);
++ void *value;
++ int ret = of_dev_prop_get(dn, propname, &value);
+
-+ res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "cfg");
-+ port->cfg_base = devm_ioremap_resource(port->dev, res);
-+ if (IS_ERR(port->cfg_base))
-+ return PTR_ERR(port->cfg_base);
-+ port->cfg_addr = res->start;
-+
-+ return 0;
-+}
-+
-+static void xgene_pcie_setup_ob_reg(struct xgene_pcie_port *port,
-+ struct resource *res, u32 offset,
-+ u64 cpu_addr, u64 pci_addr)
-+{
-+ void __iomem *base = port->csr_base + offset;
-+ resource_size_t size = resource_size(res);
-+ u64 restype = resource_type(res);
-+ u64 mask = 0;
-+ u32 min_size;
-+ u32 flag = EN_REG;
++ if (ret)
++ return ret;
+
-+ if (restype == IORESOURCE_MEM) {
-+ min_size = SZ_128M;
-+ } else {
-+ min_size = 128;
-+ flag |= OB_LO_IO;
++ if (proptype >= DEV_PROP_U8 && proptype <= DEV_PROP_U64) {
++ switch (proptype) {
++ case DEV_PROP_U8: {
++ *(u8 *)val = *(u8 *)value;
++ break;
++ }
++ case DEV_PROP_U16:
++ *(u16 *)val = *(u16 *)value;
++ break;
++ case DEV_PROP_U32:
++ *(u32 *)val = *(u32 *)value;
++ break;
++ default:
++ *(u64 *)val = *(u64 *)value;
++ break;
++ }
++ } else if (proptype == DEV_PROP_STRING) {
++ *(char **)val = value;
+ }
++ return ret;
+
-+ if (size >= min_size)
-+ mask = ~(size - 1) | flag;
-+ else
-+ dev_warn(port->dev, "res size 0x%llx less than minimum 0x%x\n",
-+ (u64)size, min_size);
-+
-+ writel(lower_32_bits(cpu_addr), base);
-+ writel(upper_32_bits(cpu_addr), base + 0x04);
-+ writel(lower_32_bits(mask), base + 0x08);
-+ writel(upper_32_bits(mask), base + 0x0c);
-+ writel(lower_32_bits(pci_addr), base + 0x10);
-+ writel(upper_32_bits(pci_addr), base + 0x14);
+}
+
-+static void xgene_pcie_setup_cfg_reg(void __iomem *csr_base, u64 addr)
++int of_dev_prop_read_array(struct device_node *dn, const char *propname,
++ enum dev_prop_type proptype, void *val, size_t nval)
+{
-+ writel(lower_32_bits(addr), csr_base + CFGBARL);
-+ writel(upper_32_bits(addr), csr_base + CFGBARH);
-+ writel(EN_REG, csr_base + CFGCTL);
-+}
++ int ret, elem_size;
+
-+static int xgene_pcie_map_ranges(struct xgene_pcie_port *port,
-+ struct list_head *res,
-+ resource_size_t io_base)
-+{
-+ struct pci_host_bridge_window *window;
-+ struct device *dev = port->dev;
-+ int ret;
-+
-+ list_for_each_entry(window, res, list) {
-+ struct resource *res = window->res;
-+ u64 restype = resource_type(res);
-+
-+ dev_dbg(port->dev, "%pR\n", res);
-+
-+ switch (restype) {
-+ case IORESOURCE_IO:
-+ xgene_pcie_setup_ob_reg(port, res, OMR3BARL, io_base,
-+ res->start - window->offset);
-+ ret = pci_remap_iospace(res, io_base);
-+ if (ret < 0)
-+ return ret;
++ if (!val) {
++ switch (proptype) {
++ case DEV_PROP_U8:
++ elem_size = sizeof(u8);
++ break;
++ case DEV_PROP_U16:
++ elem_size = sizeof(u16);
+ break;
-+ case IORESOURCE_MEM:
-+ xgene_pcie_setup_ob_reg(port, res, OMR1BARL, res->start,
-+ res->start - window->offset);
++ case DEV_PROP_U32:
++ elem_size = sizeof(u32);
+ break;
-+ case IORESOURCE_BUS:
++ case DEV_PROP_U64:
++ elem_size = sizeof(u64);
+ break;
++ case DEV_PROP_STRING:
++ return of_property_count_strings(dn, propname);
+ default:
-+ dev_err(dev, "invalid io resource - %pR\n", res);
+ return -EINVAL;
+ }
-+ }
-+ xgene_pcie_setup_cfg_reg(port->csr_base, port->cfg_addr);
-+
-+ return 0;
-+}
-+
-+static void xgene_pcie_setup_pims(void *addr, u64 pim, u64 size)
-+{
-+ writel(lower_32_bits(pim), addr);
-+ writel(upper_32_bits(pim) | EN_COHERENCY, addr + 0x04);
-+ writel(lower_32_bits(size), addr + 0x10);
-+ writel(upper_32_bits(size), addr + 0x14);
-+}
-+
-+/*
-+ * X-Gene PCIe support maximum 3 inbound memory regions
-+ * This function helps to select a region based on size of region
-+ */
-+static int xgene_pcie_select_ib_reg(u8 *ib_reg_mask, u64 size)
-+{
-+ if ((size > 4) && (size < SZ_16M) && !(*ib_reg_mask & (1 << 1))) {
-+ *ib_reg_mask |= (1 << 1);
-+ return 1;
-+ }
-+
-+ if ((size > SZ_1K) && (size < SZ_1T) && !(*ib_reg_mask & (1 << 0))) {
-+ *ib_reg_mask |= (1 << 0);
-+ return 0;
-+ }
-+
-+ if ((size > SZ_1M) && (size < SZ_1T) && !(*ib_reg_mask & (1 << 2))) {
-+ *ib_reg_mask |= (1 << 2);
-+ return 2;
++ return of_property_count_elems_of_size(dn, propname, elem_size);
+ }
+
-+ return -EINVAL;
-+}
-+
-+static void xgene_pcie_setup_ib_reg(struct xgene_pcie_port *port,
-+ struct of_pci_range *range, u8 *ib_reg_mask)
-+{
-+ void __iomem *csr_base = port->csr_base;
-+ void __iomem *cfg_base = port->cfg_base;
-+ void *bar_addr;
-+ void *pim_addr;
-+ u64 cpu_addr = range->cpu_addr;
-+ u64 pci_addr = range->pci_addr;
-+ u64 size = range->size;
-+ u64 mask = ~(size - 1) | EN_REG;
-+ u32 flags = PCI_BASE_ADDRESS_MEM_TYPE_64;
-+ u32 bar_low;
-+ int region;
-+
-+ region = xgene_pcie_select_ib_reg(ib_reg_mask, range->size);
-+ if (region < 0) {
-+ dev_warn(port->dev, "invalid pcie dma-range config\n");
-+ return;
-+ }
-+
-+ if (range->flags & IORESOURCE_PREFETCH)
-+ flags |= PCI_BASE_ADDRESS_MEM_PREFETCH;
-+
-+ bar_low = pcie_bar_low_val((u32)cpu_addr, flags);
-+ switch (region) {
-+ case 0:
-+ xgene_pcie_set_ib_mask(csr_base, BRIDGE_CFG_4, flags, size);
-+ bar_addr = cfg_base + PCI_BASE_ADDRESS_0;
-+ writel(bar_low, bar_addr);
-+ writel(upper_32_bits(cpu_addr), bar_addr + 0x4);
-+ pim_addr = csr_base + PIM1_1L;
++ switch (proptype) {
++ case DEV_PROP_U8:
++ ret = of_property_read_u8_array(dn, propname, (u8 *)val, nval);
++ break;
++ case DEV_PROP_U16:
++ ret = of_property_read_u16_array(dn, propname, (u16 *)val, nval);
++ break;
++ case DEV_PROP_U32:
++ ret = of_property_read_u32_array(dn, propname, (u32 *)val, nval);
+ break;
-+ case 1:
-+ bar_addr = csr_base + IBAR2;
-+ writel(bar_low, bar_addr);
-+ writel(lower_32_bits(mask), csr_base + IR2MSK);
-+ pim_addr = csr_base + PIM2_1L;
++ case DEV_PROP_U64:
++ ret = of_property_read_u64_array(dn, propname, (u64 *)val, nval);
+ break;
-+ case 2:
-+ bar_addr = csr_base + IBAR3L;
-+ writel(bar_low, bar_addr);
-+ writel(upper_32_bits(cpu_addr), bar_addr + 0x4);
-+ writel(lower_32_bits(mask), csr_base + IR3MSKL);
-+ writel(upper_32_bits(mask), csr_base + IR3MSKL + 0x4);
-+ pim_addr = csr_base + PIM3_1L;
++ case DEV_PROP_STRING:
++ ret = of_property_read_string_array(dn, propname,
++ (char **)val, nval);
++ break;
++ default:
++ ret = -EINVAL;
+ break;
+ }
-+
-+ xgene_pcie_setup_pims(pim_addr, pci_addr, ~(size - 1));
-+}
-+
-+static int pci_dma_range_parser_init(struct of_pci_range_parser *parser,
-+ struct device_node *node)
-+{
-+ const int na = 3, ns = 2;
-+ int rlen;
-+
-+ parser->node = node;
-+ parser->pna = of_n_addr_cells(node);
-+ parser->np = parser->pna + na + ns;
-+
-+ parser->range = of_get_property(node, "dma-ranges", &rlen);
-+ if (!parser->range)
-+ return -ENOENT;
-+ parser->end = parser->range + rlen / sizeof(__be32);
-+
-+ return 0;
++ return ret;
+}
+
-+static int xgene_pcie_parse_map_dma_ranges(struct xgene_pcie_port *port)
++int of_for_each_child_node(struct device *dev,
++ int (*fn)(struct device *dev, void *child, void *data),
++ void *data)
+{
-+ struct device_node *np = port->node;
-+ struct of_pci_range range;
-+ struct of_pci_range_parser parser;
-+ struct device *dev = port->dev;
-+ u8 ib_reg_mask = 0;
++ struct device_node *child;
++ int ret = 0;
+
-+ if (pci_dma_range_parser_init(&parser, np)) {
-+ dev_err(dev, "missing dma-ranges property\n");
-+ return -EINVAL;
-+ }
-+
-+ /* Get the dma-ranges from DT */
-+ for_each_of_pci_range(&parser, &range) {
-+ u64 end = range.cpu_addr + range.size - 1;
-+
-+ dev_dbg(port->dev, "0x%08x 0x%016llx..0x%016llx -> 0x%016llx\n",
-+ range.flags, range.cpu_addr, end, range.pci_addr);
-+ xgene_pcie_setup_ib_reg(port, &range, &ib_reg_mask);
++ for_each_child_of_node(dev->of_node, child) {
++ ret = fn(dev, child, data);
++ if (ret)
++ break;
+ }
-+ return 0;
-+}
-+
-+/* clear bar configuration which was done by firmware */
-+static void xgene_pcie_clear_config(struct xgene_pcie_port *port)
-+{
-+ int i;
-+
-+ for (i = PIM1_1L; i <= CFGCTL; i += 4)
-+ writel(0x0, port->csr_base + i);
-+}
-+
-+static int xgene_pcie_setup(struct xgene_pcie_port *port,
-+ struct list_head *res,
-+ resource_size_t io_base)
-+{
-+ u32 val, lanes = 0, speed = 0;
-+ int ret;
-+
-+ xgene_pcie_clear_config(port);
-+
-+ /* setup the vendor and device IDs correctly */
-+ val = (XGENE_PCIE_DEVICEID << 16) | XGENE_PCIE_VENDORID;
-+ writel(val, port->csr_base + BRIDGE_CFG_0);
-+
-+ ret = xgene_pcie_map_ranges(port, res, io_base);
-+ if (ret)
-+ return ret;
-+
-+ ret = xgene_pcie_parse_map_dma_ranges(port);
-+ if (ret)
-+ return ret;
-+
-+ xgene_pcie_linkup(port, &lanes, &speed);
-+ if (!port->link_up)
-+ dev_info(port->dev, "(rc) link down\n");
-+ else
-+ dev_info(port->dev, "(rc) x%d gen-%d link up\n",
-+ lanes, speed + 1);
-+ return 0;
-+}
-+
-+static int xgene_pcie_probe_bridge(struct platform_device *pdev)
-+{
-+ struct device_node *dn = pdev->dev.of_node;
-+ struct xgene_pcie_port *port;
-+ resource_size_t iobase = 0;
-+ struct pci_bus *bus;
-+ int ret;
-+ LIST_HEAD(res);
-+
-+ port = devm_kzalloc(&pdev->dev, sizeof(*port), GFP_KERNEL);
-+ if (!port)
-+ return -ENOMEM;
-+ port->node = of_node_get(pdev->dev.of_node);
-+ port->dev = &pdev->dev;
-+
-+ ret = xgene_pcie_map_reg(port, pdev);
-+ if (ret)
-+ return ret;
-+
-+ ret = xgene_pcie_init_port(port);
-+ if (ret)
-+ return ret;
-+
-+ ret = of_pci_get_host_bridge_resources(dn, 0, 0xff, &res, &iobase);
-+ if (ret)
-+ return ret;
-+
-+ ret = xgene_pcie_setup(port, &res, iobase);
-+ if (ret)
-+ return ret;
-+
-+ bus = pci_scan_root_bus(&pdev->dev, 0, &xgene_pcie_ops, port, &res);
-+ if (!bus)
-+ return -ENOMEM;
-+
-+ platform_set_drvdata(pdev, port);
-+ return 0;
-+}
-+
-+static const struct of_device_id xgene_pcie_match_table[] = {
-+ {.compatible = "apm,xgene-pcie",},
-+ {},
-+};
-+
-+static struct platform_driver xgene_pcie_driver = {
-+ .driver = {
-+ .name = "xgene-pcie",
-+ .owner = THIS_MODULE,
-+ .of_match_table = of_match_ptr(xgene_pcie_match_table),
-+ },
-+ .probe = xgene_pcie_probe_bridge,
-+};
-+module_platform_driver(xgene_pcie_driver);
-+
-+MODULE_AUTHOR("Tanmay Inamdar <tinamdar@apm.com>");
-+MODULE_DESCRIPTION("APM X-Gene PCIe driver");
-+MODULE_LICENSE("GPL v2");
-diff --git a/drivers/pci/host/pcie-rcar.c b/drivers/pci/host/pcie-rcar.c
-index 4884ee5..61158e0 100644
---- a/drivers/pci/host/pcie-rcar.c
-+++ b/drivers/pci/host/pcie-rcar.c
-@@ -323,6 +323,7 @@ static void rcar_pcie_setup_window(int win, struct rcar_pcie *pcie)
-
- /* Setup PCIe address space mappings for each resource */
- resource_size_t size;
-+ resource_size_t res_start;
- u32 mask;
-
- rcar_pci_write_reg(pcie, 0x00000000, PCIEPTCTLR(win));
-@@ -335,8 +336,13 @@ static void rcar_pcie_setup_window(int win, struct rcar_pcie *pcie)
- mask = (roundup_pow_of_two(size) / SZ_128) - 1;
- rcar_pci_write_reg(pcie, mask << 7, PCIEPAMR(win));
-
-- rcar_pci_write_reg(pcie, upper_32_bits(res->start), PCIEPARH(win));
-- rcar_pci_write_reg(pcie, lower_32_bits(res->start), PCIEPARL(win));
-+ if (res->flags & IORESOURCE_IO)
-+ res_start = pci_pio_to_address(res->start);
-+ else
-+ res_start = res->start;
-+
-+ rcar_pci_write_reg(pcie, upper_32_bits(res_start), PCIEPARH(win));
-+ rcar_pci_write_reg(pcie, lower_32_bits(res_start), PCIEPARL(win));
-
- /* First resource is for IO */
- mask = PAR_ENABLE;
-@@ -363,9 +369,10 @@ static int rcar_pcie_setup(int nr, struct pci_sys_data *sys)
-
- rcar_pcie_setup_window(i, pcie);
-
-- if (res->flags & IORESOURCE_IO)
-- pci_ioremap_io(nr * SZ_64K, res->start);
-- else
-+ if (res->flags & IORESOURCE_IO) {
-+ phys_addr_t io_start = pci_pio_to_address(res->start);
-+ pci_ioremap_io(nr * SZ_64K, io_start);
-+ } else
- pci_add_resource(&sys->resources, res);
- }
- pci_add_resource(&sys->resources, &pcie->busn);
-@@ -935,8 +942,10 @@ static int rcar_pcie_probe(struct platform_device *pdev)
- }
-
- for_each_of_pci_range(&parser, &range) {
-- of_pci_range_to_resource(&range, pdev->dev.of_node,
-+ err = of_pci_range_to_resource(&range, pdev->dev.of_node,
- &pcie->res[win++]);
-+ if (err < 0)
-+ return err;
-
- if (win > RCAR_PCI_MAX_RESOURCES)
- break;
-diff --git a/drivers/pci/pci.c b/drivers/pci/pci.c
-index 2c9ac70..6e994fc 100644
---- a/drivers/pci/pci.c
-+++ b/drivers/pci/pci.c
-@@ -2704,6 +2704,37 @@ int pci_request_regions_exclusive(struct pci_dev *pdev, const char *res_name)
- }
- EXPORT_SYMBOL(pci_request_regions_exclusive);
-
-+/**
-+ * pci_remap_iospace - Remap the memory mapped I/O space
-+ * @res: Resource describing the I/O space
-+ * @phys_addr: physical address of range to be mapped
-+ *
-+ * Remap the memory mapped I/O space described by the @res
-+ * and the CPU physical address @phys_addr into virtual address space.
-+ * Only architectures that have memory mapped IO functions defined
-+ * (and the PCI_IOBASE value defined) should call this function.
-+ */
-+int __weak pci_remap_iospace(const struct resource *res, phys_addr_t phys_addr)
-+{
-+#if defined(PCI_IOBASE) && defined(CONFIG_MMU)
-+ unsigned long vaddr = (unsigned long)PCI_IOBASE + res->start;
-+
-+ if (!(res->flags & IORESOURCE_IO))
-+ return -EINVAL;
-+
-+ if (res->end > IO_SPACE_LIMIT)
-+ return -EINVAL;
-+
-+ return ioremap_page_range(vaddr, vaddr + resource_size(res), phys_addr,
-+ pgprot_device(PAGE_KERNEL));
-+#else
-+ /* this architecture does not have memory mapped I/O space,
-+ so this function should never be called */
-+ WARN_ONCE(1, "This architecture does not support memory mapped I/O\n");
-+ return -ENODEV;
-+#endif
-+}
-+
- static void __pci_set_master(struct pci_dev *dev, bool enable)
- {
- u16 old_cmd, cmd;
-@@ -4406,6 +4437,15 @@ static void pci_no_domains(void)
- #endif
- }
-
-+#ifdef CONFIG_PCI_DOMAINS
-+static atomic_t __domain_nr = ATOMIC_INIT(-1);
-+
-+int pci_get_new_domain_nr(void)
-+{
-+ return atomic_inc_return(&__domain_nr);
++ return ret;
+}
-+#endif
-+
- /**
- * pci_ext_cfg_avail - can we access extended PCI config space?
- *
-diff --git a/drivers/pci/probe.c b/drivers/pci/probe.c
-index 4170113..c3cec34 100644
---- a/drivers/pci/probe.c
-+++ b/drivers/pci/probe.c
-@@ -485,7 +485,7 @@ void pci_read_bridge_bases(struct pci_bus *child)
- }
- }
-
--static struct pci_bus *pci_alloc_bus(void)
-+static struct pci_bus *pci_alloc_bus(struct pci_bus *parent)
- {
- struct pci_bus *b;
-
-@@ -500,6 +500,10 @@ static struct pci_bus *pci_alloc_bus(void)
- INIT_LIST_HEAD(&b->resources);
- b->max_bus_speed = PCI_SPEED_UNKNOWN;
- b->cur_bus_speed = PCI_SPEED_UNKNOWN;
-+#ifdef CONFIG_PCI_DOMAINS_GENERIC
-+ if (parent)
-+ b->domain_nr = parent->domain_nr;
-+#endif
- return b;
- }
-
-@@ -515,7 +519,7 @@ static void pci_release_host_bridge_dev(struct device *dev)
- kfree(bridge);
- }
-
--static struct pci_host_bridge *pci_alloc_host_bridge(struct pci_bus *b)
-+static struct pci_host_bridge *pci_alloc_host_bridge(void)
- {
- struct pci_host_bridge *bridge;
-
-@@ -524,7 +528,8 @@ static struct pci_host_bridge *pci_alloc_host_bridge(struct pci_bus *b)
- return NULL;
-
- INIT_LIST_HEAD(&bridge->windows);
-- bridge->bus = b;
-+ bridge->dev.release = pci_release_host_bridge_dev;
-+
- return bridge;
- }
-
-@@ -671,7 +676,7 @@ static struct pci_bus *pci_alloc_child_bus(struct pci_bus *parent,
- /*
- * Allocate a new bus, and inherit stuff from the parent..
- */
-- child = pci_alloc_bus();
-+ child = pci_alloc_bus(parent);
- if (!child)
- return NULL;
-
-@@ -1751,37 +1756,37 @@ struct pci_bus *pci_create_root_bus(struct device *parent, int bus,
- char bus_addr[64];
- char *fmt;
-
-- b = pci_alloc_bus();
-- if (!b)
-+ bridge = pci_alloc_host_bridge();
-+ if (!bridge)
- return NULL;
-
-+ bridge->dev.parent = parent;
-+
-+ b = pci_alloc_bus(NULL);
-+ if (!b)
-+ goto err_out;
-+
- b->sysdata = sysdata;
- b->ops = ops;
- b->number = b->busn_res.start = bus;
-+ pci_bus_assign_domain_nr(b, parent);
- b2 = pci_find_bus(pci_domain_nr(b), bus);
- if (b2) {
- /* If we already got to this bus through a different bridge, ignore it */
- dev_dbg(&b2->dev, "bus already known\n");
-- goto err_out;
-+ goto err_bus_out;
- }
-
-- bridge = pci_alloc_host_bridge(b);
-- if (!bridge)
-- goto err_out;
--
-- bridge->dev.parent = parent;
-- bridge->dev.release = pci_release_host_bridge_dev;
-+ bridge->bus = b;
- dev_set_name(&bridge->dev, "pci%04x:%02x", pci_domain_nr(b), bus);
- error = pcibios_root_bridge_prepare(bridge);
-- if (error) {
-- kfree(bridge);
-+ if (error)
- goto err_out;
-- }
-
- error = device_register(&bridge->dev);
- if (error) {
- put_device(&bridge->dev);
-- goto err_out;
-+ goto err_bus_out;
- }
- b->bridge = get_device(&bridge->dev);
- device_enable_async_suspend(b->bridge);
-@@ -1838,8 +1843,10 @@ struct pci_bus *pci_create_root_bus(struct device *parent, int bus,
- class_dev_reg_err:
- put_device(&bridge->dev);
- device_unregister(&bridge->dev);
--err_out:
-+err_bus_out:
- kfree(b);
-+err_out:
-+ kfree(bridge);
- return NULL;
- }
-
-@@ -1936,6 +1943,9 @@ struct pci_bus *pci_scan_root_bus(struct device *parent, int bus,
- if (!found)
- pci_bus_update_busn_res_end(b, max);
-
-+ if (!pci_has_flag(PCI_PROBE_ONLY))
-+ pci_assign_unassigned_bus_resources(b);
-+
- pci_bus_add_devices(b);
- return b;
- }
diff --git a/drivers/pnp/resource.c b/drivers/pnp/resource.c
index 782e822..d952462 100644
--- a/drivers/pnp/resource.c
@@ -7133,10 +9129,10 @@ index 0000000..402f168
+
+MODULE_LICENSE("GPL v2");
diff --git a/drivers/tty/serial/8250/8250_dw.c b/drivers/tty/serial/8250/8250_dw.c
-index 57d9df8..e075437 100644
+index beea6ca..7038a2d 100644
--- a/drivers/tty/serial/8250/8250_dw.c
+++ b/drivers/tty/serial/8250/8250_dw.c
-@@ -313,10 +313,18 @@ static int dw8250_probe_of(struct uart_port *p,
+@@ -310,10 +310,18 @@ static int dw8250_probe_of(struct uart_port *p,
static int dw8250_probe_acpi(struct uart_8250_port *up,
struct dw8250_data *data)
{
@@ -7155,7 +9151,7 @@ index 57d9df8..e075437 100644
p->iotype = UPIO_MEM32;
p->serial_in = dw8250_serial_in32;
p->serial_out = dw8250_serial_out32;
-@@ -541,6 +549,7 @@ static const struct acpi_device_id dw8250_acpi_match[] = {
+@@ -536,6 +544,7 @@ static const struct acpi_device_id dw8250_acpi_match[] = {
{ "INT3435", 0 },
{ "80860F0A", 0 },
{ "8086228A", 0 },
@@ -7164,7 +9160,7 @@ index 57d9df8..e075437 100644
};
MODULE_DEVICE_TABLE(acpi, dw8250_acpi_match);
diff --git a/drivers/virtio/virtio_mmio.c b/drivers/virtio/virtio_mmio.c
-index c600ccf..10c4775 100644
+index ef9a165..9f1939c 100644
--- a/drivers/virtio/virtio_mmio.c
+++ b/drivers/virtio/virtio_mmio.c
@@ -100,8 +100,7 @@
@@ -7177,7 +9173,7 @@ index c600ccf..10c4775 100644
/* The alignment to use between consumer and producer parts of vring.
* Currently hardcoded to the page size. */
-@@ -637,6 +636,14 @@ static struct of_device_id virtio_mmio_match[] = {
+@@ -634,6 +633,14 @@ static struct of_device_id virtio_mmio_match[] = {
};
MODULE_DEVICE_TABLE(of, virtio_mmio_match);
@@ -7192,7 +9188,7 @@ index c600ccf..10c4775 100644
static struct platform_driver virtio_mmio_driver = {
.probe = virtio_mmio_probe,
.remove = virtio_mmio_remove,
-@@ -644,6 +651,7 @@ static struct platform_driver virtio_mmio_driver = {
+@@ -641,6 +648,7 @@ static struct platform_driver virtio_mmio_driver = {
.name = "virtio-mmio",
.owner = THIS_MODULE,
.of_match_table = virtio_mmio_match,
@@ -7200,23 +9196,8 @@ index c600ccf..10c4775 100644
},
};
-diff --git a/include/acpi/acnames.h b/include/acpi/acnames.h
-index c728113..f97804b 100644
---- a/include/acpi/acnames.h
-+++ b/include/acpi/acnames.h
-@@ -59,6 +59,10 @@
- #define METHOD_NAME__PRS "_PRS"
- #define METHOD_NAME__PRT "_PRT"
- #define METHOD_NAME__PRW "_PRW"
-+#define METHOD_NAME__PS0 "_PS0"
-+#define METHOD_NAME__PS1 "_PS1"
-+#define METHOD_NAME__PS2 "_PS2"
-+#define METHOD_NAME__PS3 "_PS3"
- #define METHOD_NAME__REG "_REG"
- #define METHOD_NAME__SB_ "_SB_"
- #define METHOD_NAME__SEG "_SEG"
diff --git a/include/acpi/acpi_bus.h b/include/acpi/acpi_bus.h
-index 57ee052..a483e61 100644
+index 57ee052..a1ef42f 100644
--- a/include/acpi/acpi_bus.h
+++ b/include/acpi/acpi_bus.h
@@ -68,6 +68,8 @@ bool acpi_check_dsm(acpi_handle handle, const u8 *uuid, int rev, u64 funcs);
@@ -7228,6 +9209,28 @@ index 57ee052..a483e61 100644
static inline union acpi_object *
acpi_evaluate_dsm_typed(acpi_handle handle, const u8 *uuid, int rev, int func,
union acpi_object *argv4, acpi_object_type type)
+@@ -337,6 +339,13 @@ struct acpi_device_physical_node {
+ bool put_online:1;
+ };
+
++/* ACPI Device Specific Data (_DSD) */
++struct acpi_device_data {
++ const union acpi_object *pointer;
++ const union acpi_object *properties;
++ const union acpi_object *of_compatible;
++};
++
+ /* Device */
+ struct acpi_device {
+ int device_type;
+@@ -353,6 +362,7 @@ struct acpi_device {
+ struct acpi_device_wakeup wakeup;
+ struct acpi_device_perf performance;
+ struct acpi_device_dir dir;
++ struct acpi_device_data data;
+ struct acpi_scan_handler *handler;
+ struct acpi_hotplug_context *hp;
+ struct acpi_driver *driver;
diff --git a/include/acpi/acpi_io.h b/include/acpi/acpi_io.h
index 444671e..9d573db 100644
--- a/include/acpi/acpi_io.h
@@ -7250,118 +9253,11 @@ index 444671e..9d573db 100644
return ioremap_cache(phys, size);
}
-diff --git a/include/acpi/acpixf.h b/include/acpi/acpixf.h
-index b7c89d4..dc9d037 100644
---- a/include/acpi/acpixf.h
-+++ b/include/acpi/acpixf.h
-@@ -46,7 +46,7 @@
-
- /* Current ACPICA subsystem version in YYYYMMDD format */
-
--#define ACPI_CA_VERSION 0x20140724
-+#define ACPI_CA_VERSION 0x20140828
-
- #include <acpi/acconfig.h>
- #include <acpi/actypes.h>
-diff --git a/include/acpi/actbl1.h b/include/acpi/actbl1.h
-index 7626bfe..29e7937 100644
---- a/include/acpi/actbl1.h
-+++ b/include/acpi/actbl1.h
-@@ -952,7 +952,8 @@ enum acpi_srat_type {
- ACPI_SRAT_TYPE_CPU_AFFINITY = 0,
- ACPI_SRAT_TYPE_MEMORY_AFFINITY = 1,
- ACPI_SRAT_TYPE_X2APIC_CPU_AFFINITY = 2,
-- ACPI_SRAT_TYPE_RESERVED = 3 /* 3 and greater are reserved */
-+ ACPI_SRAT_TYPE_GICC_AFFINITY = 3,
-+ ACPI_SRAT_TYPE_RESERVED = 4 /* 4 and greater are reserved */
- };
-
- /*
-@@ -968,7 +969,7 @@ struct acpi_srat_cpu_affinity {
- u32 flags;
- u8 local_sapic_eid;
- u8 proximity_domain_hi[3];
-- u32 reserved; /* Reserved, must be zero */
-+ u32 clock_domain;
- };
-
- /* Flags */
-@@ -1010,6 +1011,20 @@ struct acpi_srat_x2apic_cpu_affinity {
-
- #define ACPI_SRAT_CPU_ENABLED (1) /* 00: Use affinity structure */
-
-+/* 3: GICC Affinity (ACPI 5.1) */
-+
-+struct acpi_srat_gicc_affinity {
-+ struct acpi_subtable_header header;
-+ u32 proximity_domain;
-+ u32 acpi_processor_uid;
-+ u32 flags;
-+ u32 clock_domain;
-+};
-+
-+/* Flags for struct acpi_srat_gicc_affinity */
-+
-+#define ACPI_SRAT_GICC_ENABLED (1) /* 00: Use affinity structure */
-+
- /* Reset to default packing */
-
- #pragma pack()
-diff --git a/include/acpi/actbl3.h b/include/acpi/actbl3.h
-index 787bcc8..5480cb2 100644
---- a/include/acpi/actbl3.h
-+++ b/include/acpi/actbl3.h
-@@ -310,10 +310,15 @@ struct acpi_gtdt_timer_entry {
- u32 common_flags;
- };
-
-+/* Flag Definitions: timer_flags and virtual_timer_flags above */
-+
-+#define ACPI_GTDT_GT_IRQ_MODE (1)
-+#define ACPI_GTDT_GT_IRQ_POLARITY (1<<1)
-+
- /* Flag Definitions: common_flags above */
-
--#define ACPI_GTDT_GT_IS_SECURE_TIMER (1)
--#define ACPI_GTDT_GT_ALWAYS_ON (1<<1)
-+#define ACPI_GTDT_GT_IS_SECURE_TIMER (1)
-+#define ACPI_GTDT_GT_ALWAYS_ON (1<<1)
-
- /* 1: SBSA Generic Watchdog Structure */
-
-diff --git a/include/asm-generic/io.h b/include/asm-generic/io.h
-index 975e1cc..2e2161b 100644
---- a/include/asm-generic/io.h
-+++ b/include/asm-generic/io.h
-@@ -331,7 +331,7 @@ static inline void iounmap(void __iomem *addr)
- #ifndef CONFIG_GENERIC_IOMAP
- static inline void __iomem *ioport_map(unsigned long port, unsigned int nr)
- {
-- return (void __iomem *) port;
-+ return (void __iomem *)(PCI_IOBASE + (port & IO_SPACE_LIMIT));
- }
-
- static inline void ioport_unmap(void __iomem *p)
-diff --git a/include/asm-generic/pgtable.h b/include/asm-generic/pgtable.h
-index 53b2acc..977e545 100644
---- a/include/asm-generic/pgtable.h
-+++ b/include/asm-generic/pgtable.h
-@@ -249,6 +249,10 @@ static inline int pmd_same(pmd_t pmd_a, pmd_t pmd_b)
- #define pgprot_writecombine pgprot_noncached
- #endif
-
-+#ifndef pgprot_device
-+#define pgprot_device pgprot_noncached
-+#endif
-+
- /*
- * When walking page tables, get the address of the next boundary,
- * or the end address of the range if that comes earlier. Although no
diff --git a/include/kvm/arm_vgic.h b/include/kvm/arm_vgic.h
-index 35b0c12..d98e96b 100644
+index 206dcc3..660dbfc 100644
--- a/include/kvm/arm_vgic.h
+++ b/include/kvm/arm_vgic.h
-@@ -237,17 +237,19 @@ bool vgic_handle_mmio(struct kvm_vcpu *vcpu, struct kvm_run *run,
+@@ -289,17 +289,19 @@ bool vgic_handle_mmio(struct kvm_vcpu *vcpu, struct kvm_run *run,
#define irqchip_in_kernel(k) (!!((k)->arch.vgic.in_kernel))
#define vgic_initialized(k) ((k)->arch.vgic.ready)
@@ -7391,10 +9287,18 @@ index 35b0c12..d98e96b 100644
return -ENODEV;
}
diff --git a/include/linux/acpi.h b/include/linux/acpi.h
-index 807cbc4..4615eb1 100644
+index b7926bb..6c22abf 100644
--- a/include/linux/acpi.h
+++ b/include/linux/acpi.h
-@@ -71,6 +71,7 @@ enum acpi_irq_model_id {
+@@ -28,6 +28,7 @@
+ #include <linux/errno.h>
+ #include <linux/ioport.h> /* for struct resource */
+ #include <linux/device.h>
++#include <linux/property.h>
+
+ #ifndef _LINUX
+ #define _LINUX
+@@ -71,6 +72,7 @@ enum acpi_irq_model_id {
ACPI_IRQ_MODEL_IOAPIC,
ACPI_IRQ_MODEL_IOSAPIC,
ACPI_IRQ_MODEL_PLATFORM,
@@ -7402,7 +9306,7 @@ index 807cbc4..4615eb1 100644
ACPI_IRQ_MODEL_COUNT
};
-@@ -123,6 +124,10 @@ int acpi_numa_init (void);
+@@ -123,6 +125,10 @@ int acpi_numa_init (void);
int acpi_table_init (void);
int acpi_table_parse(char *id, acpi_tbl_table_handler handler);
@@ -7413,6 +9317,107 @@ index 807cbc4..4615eb1 100644
int __init acpi_table_parse_entries(char *id, unsigned long table_size,
int entry_id,
acpi_tbl_entry_handler handler,
+@@ -423,12 +429,8 @@ extern int acpi_nvs_for_each_region(int (*func)(__u64, __u64, void *),
+ const struct acpi_device_id *acpi_match_device(const struct acpi_device_id *ids,
+ const struct device *dev);
+
+-static inline bool acpi_driver_match_device(struct device *dev,
+- const struct device_driver *drv)
+-{
+- return !!acpi_match_device(drv->acpi_match_table, dev);
+-}
+-
++extern bool acpi_driver_match_device(struct device *dev,
++ const struct device_driver *drv);
+ int acpi_device_uevent_modalias(struct device *, struct kobj_uevent_env *);
+ int acpi_device_modalias(struct device *, char *, int);
+
+@@ -658,4 +660,85 @@ do { \
+ #endif
+ #endif
+
++/* Device properties */
++
++#define MAX_ACPI_REFERENCE_ARGS 8
++struct acpi_reference_args {
++ struct acpi_device *adev;
++ size_t nargs;
++ u64 args[MAX_ACPI_REFERENCE_ARGS];
++};
++
++#ifdef CONFIG_ACPI
++int acpi_dev_get_property(struct acpi_device *adev, const char *name,
++ acpi_object_type type, const union acpi_object **obj);
++int acpi_dev_get_property_array(struct acpi_device *adev, const char *name,
++ acpi_object_type type,
++ const union acpi_object **obj);
++int acpi_dev_get_property_reference(struct acpi_device *adev, const char *name,
++ const char *cells_name, size_t index,
++ struct acpi_reference_args *args);
++
++int acpi_dev_prop_get(struct acpi_device *adev, const char *propname,
++ void **valptr);
++int acpi_dev_prop_read(struct acpi_device *adev, const char *propname,
++ enum dev_prop_type proptype, void *val);
++int acpi_dev_prop_read_array(struct acpi_device *adev, const char *propname,
++ enum dev_prop_type proptype, void *val,
++ size_t nval);
++int acpi_for_each_child_node(struct device *dev,
++ int (*fn)(struct device *dev, void *child, void *data),
++ void *data);
++#else
++static inline int acpi_dev_get_property(struct acpi_device *adev,
++ const char *name, acpi_object_type type,
++ const union acpi_object **obj)
++{
++ return -ENXIO;
++}
++static inline int acpi_dev_get_property_array(struct acpi_device *adev,
++ const char *name,
++ acpi_object_type type,
++ const union acpi_object **obj)
++{
++ return -ENXIO;
++}
++static inline int acpi_dev_get_property_reference(struct acpi_device *adev,
++ const char *name, const char *cells_name,
++ size_t index, struct acpi_reference_args *args)
++{
++ return -ENXIO;
++}
++
++static inline int acpi_dev_prop_get(struct acpi_device *adev,
++ const char *propname,
++ void **valptr)
++{
++ return -ENXIO;
++}
++
++static inline int acpi_dev_prop_read(struct acpi_device *adev,
++ const char *propname,
++ enum dev_prop_type proptype, void *val)
++{
++ return -ENXIO;
++}
++
++static inline int acpi_dev_prop_read_array(struct acpi_device *adev,
++ const char *propname,
++ enum dev_prop_type proptype,
++ void *val, size_t nval)
++{
++ return -ENXIO;
++}
++
++static inline int acpi_for_each_child_node(struct device *dev,
++ int (*fn)(struct device *dev, void *child, void *data),
++ void *data)
++{
++ return -ENXIO;
++}
++
++#endif
++
+ #endif /*_LINUX_ACPI_H*/
diff --git a/include/linux/clocksource.h b/include/linux/clocksource.h
index 653f0e2..5839f98 100644
--- a/include/linux/clocksource.h
@@ -7428,6 +9433,50 @@ index 653f0e2..5839f98 100644
+#endif
+
#endif /* _LINUX_CLOCKSOURCE_H */
+diff --git a/include/linux/gpio/consumer.h b/include/linux/gpio/consumer.h
+index 12f146f..033d2fd 100644
+--- a/include/linux/gpio/consumer.h
++++ b/include/linux/gpio/consumer.h
+@@ -94,6 +94,11 @@ int gpiod_to_irq(const struct gpio_desc *desc);
+ struct gpio_desc *gpio_to_desc(unsigned gpio);
+ int desc_to_gpio(const struct gpio_desc *desc);
+
++/* Child properties interface */
++struct gpio_desc *dev_get_named_gpiod_from_child(struct device *dev, void *child,
++ const char *propname, int index);
++struct gpio_desc *devm_get_named_gpiod_from_child(struct device *dev, void *child,
++ const char *propname, int index);
+ #else /* CONFIG_GPIOLIB */
+
+ static inline struct gpio_desc *__must_check __gpiod_get(struct device *dev,
+diff --git a/include/linux/gpio_keys.h b/include/linux/gpio_keys.h
+index 8b62246..ee2d8c6 100644
+--- a/include/linux/gpio_keys.h
++++ b/include/linux/gpio_keys.h
+@@ -2,6 +2,7 @@
+ #define _GPIO_KEYS_H
+
+ struct device;
++struct gpio_desc;
+
+ /**
+ * struct gpio_keys_button - configuration parameters
+@@ -17,6 +18,7 @@ struct device;
+ * disable button via sysfs
+ * @value: axis value for %EV_ABS
+ * @irq: Irq number in case of interrupt keys
++ * @gpiod: GPIO descriptor
+ */
+ struct gpio_keys_button {
+ unsigned int code;
+@@ -29,6 +31,7 @@ struct gpio_keys_button {
+ bool can_disable;
+ int value;
+ unsigned int irq;
++ struct gpio_desc *gpiod;
+ };
+
+ /**
diff --git a/include/linux/irqchip/arm-gic-acpi.h b/include/linux/irqchip/arm-gic-acpi.h
new file mode 100644
index 0000000..ad5b577
@@ -7466,111 +9515,97 @@ index 0000000..ad5b577
+
+#endif /* ARM_GIC_ACPI_H_ */
diff --git a/include/linux/irqchip/arm-gic.h b/include/linux/irqchip/arm-gic.h
-index 45e2d8c..2b0f246 100644
+index 13eed92..dc9cb5f 100644
--- a/include/linux/irqchip/arm-gic.h
+++ b/include/linux/irqchip/arm-gic.h
-@@ -39,6 +39,8 @@
- #define GIC_DIST_SGI_PENDING_CLEAR 0xf10
- #define GIC_DIST_SGI_PENDING_SET 0xf20
+@@ -55,6 +55,8 @@
+ (GICD_INT_DEF_PRI << 8) |\
+ GICD_INT_DEF_PRI)
+#define GIC_DIST_SOFTINT_NSATT 0x8000
+
#define GICH_HCR 0x0
#define GICH_VTR 0x4
#define GICH_VMCR 0x8
-diff --git a/include/linux/of_address.h b/include/linux/of_address.h
-index fb7b722..7ebb877 100644
---- a/include/linux/of_address.h
-+++ b/include/linux/of_address.h
-@@ -23,17 +23,6 @@ struct of_pci_range {
- #define for_each_of_pci_range(parser, range) \
- for (; of_pci_range_parser_one(parser, range);)
-
--static inline void of_pci_range_to_resource(struct of_pci_range *range,
-- struct device_node *np,
-- struct resource *res)
--{
-- res->flags = range->flags;
-- res->start = range->cpu_addr;
-- res->end = range->cpu_addr + range->size - 1;
-- res->parent = res->child = res->sibling = NULL;
-- res->name = np->full_name;
--}
--
- /* Translate a DMA address from device space to CPU space */
- extern u64 of_translate_dma_address(struct device_node *dev,
- const __be32 *in_addr);
-@@ -55,7 +44,9 @@ extern void __iomem *of_iomap(struct device_node *device, int index);
- extern const __be32 *of_get_address(struct device_node *dev, int index,
- u64 *size, unsigned int *flags);
-
-+extern int pci_register_io_range(phys_addr_t addr, resource_size_t size);
- extern unsigned long pci_address_to_pio(phys_addr_t addr);
-+extern phys_addr_t pci_pio_to_address(unsigned long pio);
-
- extern int of_pci_range_parser_init(struct of_pci_range_parser *parser,
- struct device_node *node);
-@@ -138,6 +129,9 @@ extern const __be32 *of_get_pci_address(struct device_node *dev, int bar_no,
- u64 *size, unsigned int *flags);
- extern int of_pci_address_to_resource(struct device_node *dev, int bar,
- struct resource *r);
-+extern int of_pci_range_to_resource(struct of_pci_range *range,
-+ struct device_node *np,
-+ struct resource *res);
- #else /* CONFIG_OF_ADDRESS && CONFIG_PCI */
- static inline int of_pci_address_to_resource(struct device_node *dev, int bar,
- struct resource *r)
-@@ -153,4 +147,3 @@ static inline const __be32 *of_get_pci_address(struct device_node *dev,
- #endif /* CONFIG_OF_ADDRESS && CONFIG_PCI */
-
- #endif /* __OF_ADDRESS_H */
--
-diff --git a/include/linux/of_pci.h b/include/linux/of_pci.h
-index dde3a4a..1fd207e 100644
---- a/include/linux/of_pci.h
-+++ b/include/linux/of_pci.h
-@@ -15,6 +15,7 @@ struct device_node *of_pci_find_child_device(struct device_node *parent,
- int of_pci_get_devfn(struct device_node *np);
- int of_irq_parse_and_map_pci(const struct pci_dev *dev, u8 slot, u8 pin);
- int of_pci_parse_bus_range(struct device_node *node, struct resource *res);
-+int of_get_pci_domain_nr(struct device_node *node);
- #else
- static inline int of_irq_parse_pci(const struct pci_dev *pdev, struct of_phandle_args *out_irq)
- {
-@@ -43,6 +44,18 @@ of_pci_parse_bus_range(struct device_node *node, struct resource *res)
- {
- return -EINVAL;
+diff --git a/include/linux/leds.h b/include/linux/leds.h
+index e436864..879a113 100644
+--- a/include/linux/leds.h
++++ b/include/linux/leds.h
+@@ -246,6 +246,7 @@ struct led_platform_data {
+ struct gpio_led {
+ const char *name;
+ const char *default_trigger;
++ struct gpio_desc *gpiod;
+ unsigned gpio;
+ unsigned active_low : 1;
+ unsigned retain_state_suspended : 1;
+diff --git a/include/linux/of.h b/include/linux/of.h
+index 6545e7a..9962b70 100644
+--- a/include/linux/of.h
++++ b/include/linux/of.h
+@@ -23,6 +23,7 @@
+ #include <linux/spinlock.h>
+ #include <linux/topology.h>
+ #include <linux/notifier.h>
++#include <linux/property.h>
+
+ #include <asm/byteorder.h>
+ #include <asm/errno.h>
+@@ -355,6 +356,15 @@ const char *of_prop_next_string(struct property *prop, const char *cur);
+
+ bool of_console_check(struct device_node *dn, char *name, int index);
+
++int of_dev_prop_get(struct device_node *dn, const char *propname, void **valptr);
++int of_dev_prop_read(struct device_node *dn, const char *propname,
++ enum dev_prop_type proptype, void *val);
++int of_dev_prop_read_array(struct device_node *dn, const char *propname,
++ enum dev_prop_type proptype, void *val, size_t nval);
++int of_for_each_child_node(struct device *dev,
++ int (*fn)(struct device *dev, void *child, void *data),
++ void *data);
++
+ #else /* CONFIG_OF */
+
+ static inline const char* of_node_full_name(const struct device_node *np)
+@@ -582,6 +592,33 @@ static inline const char *of_prop_next_string(struct property *prop,
+ return NULL;
}
+
++static inline int of_dev_prop_get(struct device_node *dn, const char *propname,
++ void **valptr)
++{
++ return -ENXIO;
++}
+
-+static inline int
-+of_get_pci_domain_nr(struct device_node *node)
++static inline int of_dev_prop_read(struct device_node *dn, const char *propname,
++ enum dev_prop_type proptype, void *val)
+{
-+ return -1;
++ return -ENXIO;
+}
-+#endif
+
-+#if defined(CONFIG_OF_ADDRESS)
-+int of_pci_get_host_bridge_resources(struct device_node *dev,
-+ unsigned char busno, unsigned char bus_max,
-+ struct list_head *resources, resource_size_t *io_base);
- #endif
-
- #if defined(CONFIG_OF) && defined(CONFIG_PCI_MSI)
++static inline int of_dev_prop_read_array(struct device_node *dn,
++ const char *propname,
++ enum dev_prop_type proptype,
++ void *val, size_t nval)
++{
++ return -ENXIO;
++}
++
++static inline int of_for_each_child_node(struct device *dev,
++ int (*fn)(struct device *dev, void *child, void *data),
++ void *data)
++{
++ return -ENXIO;
++}
++
+ #define of_match_ptr(_ptr) NULL
+ #define of_match_node(_matches, _node) NULL
+ #endif /* CONFIG_OF */
diff --git a/include/linux/pci.h b/include/linux/pci.h
-index 96453f9..6d540b9 100644
+index 5be8db4..6afba72 100644
--- a/include/linux/pci.h
+++ b/include/linux/pci.h
-@@ -457,6 +457,9 @@ struct pci_bus {
- unsigned char primary; /* number of primary bridge */
- unsigned char max_bus_speed; /* enum pci_bus_speed */
- unsigned char cur_bus_speed; /* enum pci_bus_speed */
-+#ifdef CONFIG_PCI_DOMAINS_GENERIC
-+ int domain_nr;
-+#endif
-
- char name[48];
-
-@@ -559,15 +562,6 @@ struct pci_ops {
+@@ -562,15 +562,6 @@ struct pci_ops {
int (*write)(struct pci_bus *bus, unsigned int devfn, int where, int size, u32 val);
};
@@ -7586,48 +9621,7 @@ index 96453f9..6d540b9 100644
struct pci_bus_region {
dma_addr_t start;
dma_addr_t end;
-@@ -1103,6 +1097,9 @@ int __must_check pci_bus_alloc_resource(struct pci_bus *bus,
- resource_size_t),
- void *alignf_data);
-
-+
-+int pci_remap_iospace(const struct resource *res, phys_addr_t phys_addr);
-+
- static inline dma_addr_t pci_bus_address(struct pci_dev *pdev, int bar)
- {
- struct pci_bus_region region;
-@@ -1288,17 +1285,47 @@ void pci_cfg_access_unlock(struct pci_dev *dev);
- */
- #ifdef CONFIG_PCI_DOMAINS
- extern int pci_domains_supported;
-+int pci_get_new_domain_nr(void);
- #else
- enum { pci_domains_supported = 0 };
- static inline int pci_domain_nr(struct pci_bus *bus) { return 0; }
- static inline int pci_proc_domain(struct pci_bus *bus) { return 0; }
-+static inline int pci_get_new_domain_nr(void) { return -ENOSYS; }
- #endif /* CONFIG_PCI_DOMAINS */
-
-+/*
-+ * Generic implementation for PCI domain support. If your
-+ * architecture does not need custom management of PCI
-+ * domains then this implementation will be used
-+ */
-+#ifdef CONFIG_PCI_DOMAINS_GENERIC
-+static inline int pci_domain_nr(struct pci_bus *bus)
-+{
-+ return bus->domain_nr;
-+}
-+void pci_bus_assign_domain_nr(struct pci_bus *bus, struct device *parent);
-+#else
-+static inline void pci_bus_assign_domain_nr(struct pci_bus *bus,
-+ struct device *parent)
-+{
-+}
-+#endif
-+
- /* some architectures require additional setup to direct VGA traffic */
- typedef int (*arch_set_vga_state_t)(struct pci_dev *pdev, bool decode,
+@@ -1325,6 +1316,16 @@ typedef int (*arch_set_vga_state_t)(struct pci_dev *pdev, bool decode,
unsigned int command_bits, u32 flags);
void pci_register_set_vga_state(arch_set_vga_state_t func);
@@ -7644,7 +9638,7 @@ index 96453f9..6d540b9 100644
#else /* CONFIG_PCI is not enabled */
/*
-@@ -1400,8 +1427,26 @@ static inline struct pci_dev *pci_get_bus_and_slot(unsigned int bus,
+@@ -1426,6 +1427,23 @@ static inline struct pci_dev *pci_get_bus_and_slot(unsigned int bus,
unsigned int devfn)
{ return NULL; }
@@ -7667,11 +9661,8 @@ index 96453f9..6d540b9 100644
+
static inline int pci_domain_nr(struct pci_bus *bus) { return 0; }
static inline struct pci_dev *pci_dev_get(struct pci_dev *dev) { return NULL; }
-+static inline int pci_get_new_domain_nr(void) { return -ENOSYS; }
-
- #define dev_is_pci(d) (false)
- #define dev_is_pf(d) (false)
-@@ -1613,7 +1658,6 @@ int pcibios_set_pcie_reset_state(struct pci_dev *dev,
+ static inline int pci_get_new_domain_nr(void) { return -ENOSYS; }
+@@ -1635,7 +1653,6 @@ int pcibios_set_pcie_reset_state(struct pci_dev *dev,
enum pcie_reset_state state);
int pcibios_add_device(struct pci_dev *dev);
void pcibios_release_device(struct pci_dev *dev);
@@ -7679,19 +9670,219 @@ index 96453f9..6d540b9 100644
#ifdef CONFIG_HIBERNATE_CALLBACKS
extern struct dev_pm_ops pcibios_pm_ops;
-diff --git a/tools/perf/arch/arm64/include/perf_regs.h b/tools/perf/arch/arm64/include/perf_regs.h
-index e9441b9..1d3f39c 100644
---- a/tools/perf/arch/arm64/include/perf_regs.h
-+++ b/tools/perf/arch/arm64/include/perf_regs.h
-@@ -6,6 +6,8 @@
- #include <asm/perf_regs.h>
-
- #define PERF_REGS_MASK ((1ULL << PERF_REG_ARM64_MAX) - 1)
-+#define PERF_REGS_MAX PERF_REG_ARM64_MAX
+diff --git a/include/linux/property.h b/include/linux/property.h
+new file mode 100644
+index 0000000..1a42878
+--- /dev/null
++++ b/include/linux/property.h
+@@ -0,0 +1,207 @@
++/*
++ * property.h - Unified device property interface.
++ *
++ * Copyright (C) 2014, Intel Corporation
++ * Authors: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
++ * Mika Westerberg <mika.westerberg@linux.intel.com>
++ *
++ * This program is free software; you can redistribute it and/or modify
++ * it under the terms of the GNU General Public License version 2 as
++ * published by the Free Software Foundation.
++ */
+
- #define PERF_REG_IP PERF_REG_ARM64_PC
- #define PERF_REG_SP PERF_REG_ARM64_SP
-
++#ifndef _LINUX_PROPERTY_H_
++#define _LINUX_PROPERTY_H_
++
++#include <linux/device.h>
++
++enum dev_prop_type {
++ DEV_PROP_U8,
++ DEV_PROP_U16,
++ DEV_PROP_U32,
++ DEV_PROP_U64,
++ DEV_PROP_STRING,
++ DEV_PROP_MAX,
++};
++
++int device_get_property(struct device *dev, const char *propname,
++ void **valptr);
++int device_read_property(struct device *dev, const char *propname,
++ enum dev_prop_type proptype, void *val);
++int device_read_property_array(struct device *dev, const char *propname,
++ enum dev_prop_type proptype, void *val,
++ size_t nval);
++int device_get_child_property(struct device *dev, void *child,
++ const char *propname, void **valptr);
++int device_read_child_property(struct device *dev, void *child,
++ const char *propname,
++ enum dev_prop_type proptype, void *val);
++int device_read_child_property_array(struct device *dev, void *child,
++ const char *propname,
++ enum dev_prop_type proptype, void *val,
++ size_t nval);
++int device_for_each_child_node(struct device *dev,
++ int (*fn)(struct device *dev, void *child, void *data),
++ void *data);
++unsigned int device_get_child_node_count(struct device *dev);
++
++static inline int device_property_read_u8(struct device *dev,
++ const char *propname, u8 *out_value)
++{
++ return device_read_property(dev, propname, DEV_PROP_U8, out_value);
++}
++
++static inline int device_property_read_u16(struct device *dev,
++ const char *propname, u16 *out_value)
++{
++ return device_read_property(dev, propname, DEV_PROP_U16, out_value);
++}
++
++static inline int device_property_read_u32(struct device *dev,
++ const char *propname, u32 *out_value)
++{
++ return device_read_property(dev, propname, DEV_PROP_U32, out_value);
++}
++
++static inline int device_property_read_u64(struct device *dev,
++ const char *propname, u64 *out_value)
++{
++ return device_read_property(dev, propname, DEV_PROP_U64, out_value);
++}
++
++static inline int device_property_read_u8_array(struct device *dev,
++ const char *propname,
++ u8 *val, size_t nval)
++{
++ return device_read_property_array(dev, propname, DEV_PROP_U8, val,
++ nval);
++}
++
++static inline int device_property_read_u16_array(struct device *dev,
++ const char *propname,
++ u16 *val, size_t nval)
++{
++ return device_read_property_array(dev, propname, DEV_PROP_U16, val,
++ nval);
++}
++
++static inline int device_property_read_u32_array(struct device *dev,
++ const char *propname,
++ u32 *val, size_t nval)
++{
++ return device_read_property_array(dev, propname, DEV_PROP_U32, val,
++ nval);
++}
++
++static inline int device_property_read_u64_array(struct device *dev,
++ const char *propname,
++ u64 *val, size_t nval)
++{
++ return device_read_property_array(dev, propname, DEV_PROP_U64, val,
++ nval);
++}
++
++static inline int device_property_read_string(struct device *dev,
++ const char *propname,
++ const char **out_string)
++{
++ return device_read_property(dev, propname, DEV_PROP_STRING, out_string);
++}
++
++static inline int device_property_read_string_array(struct device *dev,
++ const char *propname,
++ const char **out_strings,
++ size_t nstrings)
++{
++ return device_read_property_array(dev, propname, DEV_PROP_STRING,
++ out_strings, nstrings);
++}
++
++static inline int device_child_property_read_u8(struct device *dev, void *child,
++ const char *propname,
++ u8 *out_value)
++{
++ return device_read_child_property(dev, child, propname, DEV_PROP_U8,
++ out_value);
++}
++
++static inline int device_child_property_read_u16(struct device *dev, void *child,
++ const char *propname,
++ u16 *out_value)
++{
++ return device_read_child_property(dev, child, propname, DEV_PROP_U16,
++ out_value);
++}
++
++static inline int device_child_property_read_u32(struct device *dev, void *child,
++ const char *propname,
++ u32 *out_value)
++{
++ return device_read_child_property(dev, child, propname, DEV_PROP_U32,
++ out_value);
++}
++
++static inline int device_child_property_read_u64(struct device *dev, void *child,
++ const char *propname,
++ u64 *out_value)
++{
++ return device_read_child_property(dev, child, propname, DEV_PROP_U64,
++ out_value);
++}
++
++static inline int device_child_property_read_u8_array(struct device *dev,
++ void *child,
++ const char *propname,
++ u8 *val, size_t nval)
++{
++ return device_read_child_property_array(dev, child, propname,
++ DEV_PROP_U8, val, nval);
++}
++
++static inline int device_child_property_read_u16_array(struct device *dev,
++ void *child,
++ const char *propname,
++ u16 *val, size_t nval)
++{
++ return device_read_child_property_array(dev, child, propname,
++ DEV_PROP_U16, val, nval);
++}
++
++static inline int device_child_property_read_u32_array(struct device *dev,
++ void *child,
++ const char *propname,
++ u32 *val, size_t nval)
++{
++ return device_read_child_property_array(dev, child, propname,
++ DEV_PROP_U32, val, nval);
++}
++
++static inline int device_child_property_read_u64_array(struct device *dev,
++ void *child,
++ const char *propname,
++ u64 *val, size_t nval)
++{
++ return device_read_child_property_array(dev, child, propname,
++ DEV_PROP_U64, val, nval);
++}
++
++static inline int device_child_property_read_string(struct device *dev,
++ void *child,
++ const char *propname,
++ const char **out_string)
++{
++ return device_read_child_property(dev, child, propname, DEV_PROP_STRING,
++ out_string);
++}
++
++static inline int device_child_property_read_string_array(struct device *dev,
++ void *child,
++ const char *propname,
++ const char **out_strings,
++ size_t nstrings)
++{
++ return device_read_child_property_array(dev, child, propname,
++ DEV_PROP_STRING,
++ out_strings, nstrings);
++}
++#endif /* _LINUX_PROPERTY_H_ */
diff --git a/virt/kvm/arm/arch_timer.c b/virt/kvm/arm/arch_timer.c
index 22fa819..9cd5dbd 100644
--- a/virt/kvm/arm/arch_timer.c
@@ -7839,7 +10030,7 @@ index 22fa819..9cd5dbd 100644
void kvm_timer_vcpu_terminate(struct kvm_vcpu *vcpu)
diff --git a/virt/kvm/arm/vgic-v2.c b/virt/kvm/arm/vgic-v2.c
-index 416baed..53bdd33 100644
+index 2935405..196f49e 100644
--- a/virt/kvm/arm/vgic-v2.c
+++ b/virt/kvm/arm/vgic-v2.c
@@ -19,6 +19,7 @@
@@ -7858,7 +10049,7 @@ index 416baed..53bdd33 100644
#include <asm/kvm_emulate.h>
#include <asm/kvm_arm.h>
#include <asm/kvm_mmu.h>
-@@ -177,7 +179,7 @@ static const struct vgic_ops vgic_v2_ops = {
+@@ -159,7 +161,7 @@ static const struct vgic_ops vgic_v2_ops = {
static struct vgic_params vgic_v2_params;
/**
@@ -7867,7 +10058,7 @@ index 416baed..53bdd33 100644
* @node: pointer to the DT node
* @ops: address of a pointer to the GICv2 operations
* @params: address of a pointer to HW-specific parameters
-@@ -186,7 +188,7 @@ static struct vgic_params vgic_v2_params;
+@@ -168,7 +170,7 @@ static struct vgic_params vgic_v2_params;
* in *ops and the HW parameters in *params. Returns an error code
* otherwise.
*/
@@ -7876,7 +10067,7 @@ index 416baed..53bdd33 100644
const struct vgic_ops **ops,
const struct vgic_params **params)
{
-@@ -263,3 +265,72 @@ out:
+@@ -245,3 +247,72 @@ out:
of_node_put(vgic_node);
return ret;
}
@@ -7976,7 +10167,7 @@ index 1c2c8ee..8b56920 100644
int ret = 0;
u32 gicv_idx;
diff --git a/virt/kvm/arm/vgic.c b/virt/kvm/arm/vgic.c
-index 73eba79..ca98a3b 100644
+index 3aaca49..f6e9922 100644
--- a/virt/kvm/arm/vgic.c
+++ b/virt/kvm/arm/vgic.c
@@ -25,9 +25,11 @@
@@ -7991,7 +10182,7 @@ index 73eba79..ca98a3b 100644
#include <asm/kvm_emulate.h>
#include <asm/kvm_arm.h>
#include <asm/kvm_mmu.h>
-@@ -1549,31 +1551,39 @@ static struct notifier_block vgic_cpu_nb = {
+@@ -2427,31 +2429,39 @@ static struct notifier_block vgic_cpu_nb = {
};
static const struct of_device_id vgic_ids[] = {
@@ -8007,8 +10198,8 @@ index 73eba79..ca98a3b 100644
int kvm_vgic_hyp_init(void)
{
const struct of_device_id *matched_id;
- int (*vgic_probe)(struct device_node *,const struct vgic_ops **,
- const struct vgic_params **);
+ const int (*vgic_probe)(struct device_node *,const struct vgic_ops **,
+ const struct vgic_params **);
struct device_node *vgic_node;
- int ret;
+ int ret = -ENODEV;
generated by cgit (git 2.34.1) at 2024-06-16 09:10:25 +0000