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* x86 ACPI: normalize segment descriptor register on resumeH. Peter Anvin2008-07-051-3/+2
| | | | | | | | | | | | | | | | | | | | | | Some Dell laptops enter resume with apparent garbage in the segment descriptor registers (almost certainly the result of a botched transition from protected to real mode.) The only way to clean that up is to enter protected mode ourselves and clean out the descriptor registers. This fixes resume on Dell XPS M1210 and Dell D620. Reference: http://bugzilla.kernel.org/show_bug.cgi?id=10927 Signed-off-by: H. Peter Anvin <hpa@zytor.com> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Pavel Machek <pavel@ucw.cz> Cc: pm list <linux-pm@lists.linux-foundation.org> Cc: Len Brown <lenb@kernel.org> Signed-off-by: Ingo Molnar <mingo@elte.hu> Tested-by: Kirill A. Shutemov <kirill@shutemov.name> Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl> Signed-off-by: Ingo Molnar <mingo@elte.hu>
* rtc: fix CMOS time error after writing /proc/acpi/alarmHuacai Chen2008-07-041-1/+4
| | | | | | | | | | | | | | | | | | | When writing /proc/acpi/alarm in adjust mode, e.g. echo "+0000-00-00 00:00:15" >/proc/acpi/alarm The "century" field should be read and added to "year" field before writing, otherwise the CMOS time will go back to 2000 years ago, e.g. # cat /proc/acpi/alarm 0008-06-21 11:38:46 Then the system time may be reset to the date of manufacture after rebooting. This patch fixed this issue. Signed-off-by: Huacai Chen <huacai.chen@intel.com> Acked-by: Pavel Machek <pavel@suse.cz> Acked-by: Zhao Yakui <yakui.zhao@intel.com> Acked-by: Alessandro Zummo <a.zummo@towertech.it> Acked-by: Len Brown <lenb@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* dock: bay: Don't call acpi_walk_namespace() when ACPI is disabled.Len Brown2008-06-262-0/+6
| | | | Signed-off-by: Len Brown <len.brown@intel.com>
* ACPI: don't walk tables if ACPI was disabledVegard Nossum2008-06-261-0/+3
| | | | | | | | | | | | | | | | | | Ingo Molnar wrote: > -tip auto-testing started triggering this spinlock corruption message > yesterday: > > [ 3.976213] calling acpi_rtc_init+0x0/0xd3 > [ 3.980213] ACPI Exception (utmutex-0263): AE_BAD_PARAMETER, Thread F7C50000 could not acquire Mutex [3] [20080321] > [ 3.992213] BUG: spinlock bad magic on CPU#0, swapper/1 > [ 3.992213] lock: c2508dc4, .magic: 00000000, .owner: swapper/1, .owner_cpu: 0 This is apparently because some parts of ACPI, including mutexes, are not initialized when acpi=off is passed to the kernel. Reported-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Vegard Nossum <vegard.nossum@gmail.com> Signed-off-by: Len Brown <len.brown@intel.com>
* Merge branch 'bugzilla-9761' into releaseLen Brown2008-06-201-1/+2
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| * ACPI Exception (video-1721): UNKNOWN_STATUS_CODE, Cant attach deviceZhang Rui2008-06-141-1/+2
| | | | | | | | | | | | | | | | | | The child of a video bus device is not alway a video device. It should be a warn message rather than an exception here. http://bugzilla.kernel.org/show_bug.cgi?id=9761 Signed-off-by: Zhang Rui <rui.zhang@intel.com> Signed-off-by: Len Brown <len.brown@intel.com>
* | ACPI: no AC status notificationLen Brown2008-06-141-5/+3
|/ | | | | | http://bugzilla.kernel.org/show_bug.cgi?id=10695 Signed-off-by: Len Brown <len.brown@intel.com>
* ACPICA: fix stray va_end() caused by mis-mergeLen Brown2008-06-111-1/+1
| | | | Signed-off-by: Len Brown <len.brown@intel.com>
* ACPI: Reject below-freezing temperatures as invalid critical temperaturesArjan van de Ven2008-06-111-2/+9
| | | | | | | | | | | | | My laptop thinks that it's a good idea to give -73C as the critical CPU temperature.... which isn't the best thing since it causes a shutdown right at bootup. Temperatures below freezing are clearly invalid critical thresholds so just reject these as such. Signed-off-by: Arjan van de Ven <arjan@linux.intel.com> Acked-by: Zhang Rui <rui.zhang@intel.com> Signed-off-by: Len Brown <len.brown@intel.com>
* ACPICA: Fix for access to deleted object <regression>Bob Moore2008-06-111-2/+2
| | | | | | | | | | | | | Fixes problem introduced in 20080123, with fix for Unload operator. Parse tree object can be already deleted; must use the opcode within the WalkState. ACPI: kmemcheck: Caught 16-bit read from freed memory http://bugzilla.kernel.org/show_bug.cgi?id=10669 Signed-off-by: Lin Ming <ming.m.lin@intel.com> Signed-off-by: Bob Moore <robert.moore@intel.com> Signed-off-by: Len Brown <len.brown@intel.com>
* ACPICA: Fix to make _SST method optionalBob Moore2008-06-111-3/+5
| | | | | | | | | | | | | Fixes a problem introduced in 20080514 where the status of execution of _SST is incorrectly returned to the caller. _SST is optional, and if it is AE_NOT_FOUND, the exception should be ignored. http://www.acpica.org/bugzilla/show_bug.cgi?id=716 Signed-off-by: Bob Moore <robert.moore@intel.com> Signed-off-by: Lin Ming <ming.m.lin@intel.com> Signed-off-by: Len Brown <len.brown@intel.com>
* ACPICA: Fix for Load operator, load table at the namespace rootBob Moore2008-06-111-2/+8
| | | | | | | | | | | This reverts a change introduced in version 20071019. The table is now loaded at the namespace root even though this goes against the ACPI specification. This provides compatibility with other ACPI implementations. Signed-off-by: Lin Ming <ming.m.lin@intel.com> Signed-off-by: Bob Moore <robert.moore@intel.com> Signed-off-by: Len Brown <len.brown@intel.com>
* ACPICA: Ignore ACPI table signature for Load() operatorBob Moore2008-06-111-18/+7
| | | | | | | | | | | | | Only "SSDT" is acceptable to the ACPI spec, but tables are seen with OEMx and null sigs. Therefore, signature validation is worthless. Apparently MS ACPI accepts such signatures, ACPICA must be compatible. http://bugzilla.kernel.org/show_bug.cgi?id=10454 Signed-off-by: Bob Moore <robert.moore@intel.com> Signed-off-by: Lin Ming <ming.m.lin@intel.com> Signed-off-by: Len Brown <len.brown@intel.com>
* ACPICA: Fix to allow zero-length ASL field declarationsBob Moore2008-06-111-4/+1
| | | | | | | | | | | Allows null field list in Field(), BankField(), and IndexField(). 2.6.26-rc1 regression: ACPI fails to load SDT. - Dell M1530 http://bugzilla.kernel.org/show_bug.cgi?id=10606 Signed-off-by: Bob Moore <robert.moore@intel.com> Signed-off-by: Lin Ming <ming.m.lin@intel.com> Signed-off-by: Len Brown <len.brown@intel.com>
* ACPI: use memory_read_from_buffer()Akinobu Mita2008-06-111-13/+2
| | | | | | | Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com> Acked-by: Zhang Rui <rui.zhang@intel.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Len Brown <len.brown@intel.com>
* bay: exit if notify handler cannot be installedHolger Macht2008-06-111-6/+10
| | | | | | | | | | | | | If acpi_install_notify_handler() for a bay device fails, the bay driver is superfluous. Most likely, another driver (like libata) is already caring about this device anyway. Furthermore, register_hotplug_dock_device(acpi_handle) from the dock driver must not be called twice with the same handler. This would result in an endless loop consuming 100% of CPU. So clean up and exit. Signed-off-by: Holger Macht <hmacht@suse.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Len Brown <len.brown@intel.com>
* dock.c remove trailing printk whitespaceTim Pepper2008-06-111-1/+1
| | | | | | Signed-off-by: Tim Pepper <lnxninja@linux.vnet.ibm.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Len Brown <len.brown@intel.com>
* proper prototype for acpi_processor_tstate_has_changed()Adrian Bunk2008-06-111-1/+0
| | | | | | | | | | This patch adds a proper prototype for acpi_processor_tstate_has_changed() in include/acpi/processor.h Signed-off-by: Adrian Bunk <bunk@kernel.org> Cc: Len Brown <lenb@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Len Brown <len.brown@intel.com>
* ACPI: handle invalid ACPI SLIT tableFenghua Yu2008-06-111-4/+27
| | | | | | | | | | | | This is a SLIT sanity checking patch. It moves slit_valid() function to generic ACPI code and does sanity checking for both x86 and ia64. It sets up node_distance with LOCAL_DISTANCE and REMOTE_DISTANCE when hitting invalid SLIT table on ia64. It also cleans up unused variable localities in acpi_parse_slit() on x86. Signed-off-by: Fenghua Yu <fenghua.yu@intel.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Len Brown <len.brown@intel.com>
* ACPI 2.6.26-rc2: Add missing newline to DSDT/SSDT warning messageAlistair John Strachan2008-06-111-1/+1
| | | | | | | | | | | | | As of recently (probably 2.6.26-rc1) I've been getting the following mangling in the kernel log: [4294014.568167] ACPI: DSDT override uses original SSDTs unless "acpi_no_auto_ssdt"<6>CPU0: Intel(R) Pentium(R) Dual CPU E2160 @ 1.80GHz stepping 0d This is due to a missing newline character in the first message. The following patch against 2.6.26-rc2 fixes it. Please apply. Signed-off-by: Alistair John Strachan <alistair@devzero.co.uk> Signed-off-by: Len Brown <len.brown@intel.com>
* ACPI: EC: Use msleep instead of udelay while waiting for event.Alexey Starikovskiy2008-06-111-1/+1
| | | | | | | http://bugzilla.kernel.org/show_bug.cgi?id=10724 Signed-off-by: Alexey Starikovskiy <astarikovskiy@suse.de> Signed-off-by: Len Brown <len.brown@intel.com>
* cpuidle acpi driver: fix oops on AC<->DCVenkatesh Pallipadi2008-06-111-6/+7
| | | | | | | | | | | | | | | | | | | | | | | | | | | | cpuidle and acpi driver interaction bug with the way cpuidle_register_driver() is called. Due to this bug, there will be oops on AC<->DC on some systems, where they support C-states in one DC and not in AC. The current code does ON BOOT: Look at CST and other C-state info to see whether more than C1 is supported. If it is, then acpi processor_idle does a cpuidle_register_driver() call, which internally enables the device. ON CST change notification (AC<->DC) and on suspend-resume: acpi driver temporarily disables device, updates the device with any new C-states, and reenables the device. The problem is is on boot, there are no C2, C3 states supported and we skip the register. Later on AC<->DC, we may get a CST notification and we try to reevaluate CST and enabled the device, without actually registering it. This causes breakage as we try to create /sys fs sub directory, without the parent directory which is created at register time. Thanks to Sanjeev for reporting the problem here. http://bugzilla.kernel.org/show_bug.cgi?id=10394 Signed-off-by: Venkatesh Pallipadi <venkatesh.pallipadi@intel.com> Signed-off-by: Len Brown <len.brown@intel.com>
* ACPI: Disable Fixed_RTC event when installing RTC handlerZhao Yakui2008-06-112-0/+12
| | | | | | | | | | | | | The Fixed_RTC event should be disabled when installing RTC handler. Only when RTC alarm is set will it be enabled again. If it is not disabled, maybe some machines will be powered on automatically after the system is shutdown even when the RTC alarm is not set. http://bugzilla.kernel.org/show_bug.cgi?id=10010 Signed-off-by: Zhao Yakui <yakui.zhao@intel.com> Signed-off-by: Zhang Rui <rui.zhang@intel.com> Signed-off-by: Len Brown <len.brown@intel.com>
* acpi: fix integer as NULL pointer warningHarvey Harrison2008-05-232-3/+3
| | | | | | | | | drivers/acpi/dispatcher/dsmethod.c:568:50: warning: Using plain integer as NULL pointer drivers/acpi/executer/exmutex.c:329:30: warning: Using plain integer as NULL pointer drivers/acpi/executer/exmutex.c:466:31: warning: Using plain integer as NULL pointer Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* Fix ACPI vs proc_create_data() mismergeAlexey Dobriyan2008-04-301-9/+11
| | | | | | | | acpi_device_dir() is NULL until all files are createst, so everyting is created in straight in /proc/ and creation code warns. Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* Merge branch 'release' of ↵Linus Torvalds2008-04-30121-1626/+2580
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux-acpi-2.6 * 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux-acpi-2.6: (179 commits) ACPI: Fix acpi_processor_idle and idle= boot parameters interaction acpi: fix section mismatch warning in pnpacpi intel_menlo: fix build warning ACPI: Cleanup: Remove unneeded, multiple local dummy variables ACPI: video - fix permissions on some proc entries ACPI: video - properly handle errors when registering proc elements ACPI: video - do not store invalid entries in attached_array list ACPI: re-name acpi_pm_ops to acpi_suspend_ops ACER_WMI/ASUS_LAPTOP: fix build bug thinkpad_acpi: fix possible NULL pointer dereference if kstrdup failed ACPI: check a return value correctly in acpi_power_get_context() #if 0 acpi/bay.c:eject_removable_drive() eeepc-laptop: add hwmon fan control eeepc-laptop: add backlight eeepc-laptop: add base driver ACPI: thinkpad-acpi: bump up version to 0.20 ACPI: thinkpad-acpi: fix selects in Kconfig ACPI: thinkpad-acpi: use a private workqueue ACPI: thinkpad-acpi: fluff really minor fix ACPI: thinkpad-acpi: use uppercase for "LED" on user documentation ... Fixed conflicts in drivers/acpi/video.c and drivers/misc/intel_menlow.c manually.
| *-------------------. Merge branches 'release', 'acpica', 'bugzilla-10224', 'bugzilla-9772', ↵Len Brown2008-04-3018-469/+512
| |\ \ \ \ \ \ \ \ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 'bugzilla-9916', 'ec', 'eeepc', 'idle', 'misc', 'pm-legacy', 'sysfs-links-2.6.26', 'thermal', 'thinkpad' and 'video' into release
| | | | | | | | | | | | * ACPI: Cleanup: Remove unneeded, multiple local dummy variablesThomas Renninger2008-04-291-10/+7
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Signed-off-by: Thomas Renninger <trenn@suse.de> Signed-off-by: Len Brown <len.brown@intel.com>
| | | | | | | | | | | | * ACPI: video - fix permissions on some proc entriesDmitry Torokhov2008-04-291-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | POST and DOS are supposed to be writable but permissions did not allow it. Signed-off-by: Dmitry Torokhov <dtor@mail.ru> Acked-by: Zhang Rui <rui.zhang@intel.com> Signed-off-by: Len Brown <len.brown@intel.com>
| | | | | | | | | | | | * ACPI: video - properly handle errors when registering proc elementsDmitry Torokhov2008-04-291-115/+115
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Have acpi_video_device_add_fs() and acpi_video_bus_add_fs() properly unwind proc creation after error. Signed-off-by: Dmitry Torokhov <dtor@mail.ru> Acked-by: Zhang Rui <rui.zhang@intel.com> Signed-off-by: Len Brown <len.brown@intel.com>
| | | | | | | | | | | | * ACPI: video - do not store invalid entries in attached_array listDmitry Torokhov2008-04-291-31/+27
| | | | | | | |_|_|_|_|/ | | | | | | |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | this is a cleanup, not a change to function. Signed-off-by: Dmitry Torokhov <dtor@mail.ru> Acked-by: Zhang Rui <rui.zhang@intel.com> Signed-off-by: Len Brown <len.brown@intel.com>
| | | | | | | | | | | * ACPI: update thermal temperatureZhang, Rui2008-04-291-0/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Fix the problem that thermal_get_temp returns the cached value, which causes the temperature in generic thermal never updates. Signed-off-by: Zhang Rui <rui.zhang@intel.com> Acked-by: Jean Delvare <khali@linux-fr.org> Signed-off-by: Len Brown <len.brown@intel.com>
| | | | | | | | | | | * ACPI: elide a non-zero test on a result that is never 0Julia Lawall2008-04-293-49/+45
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | thermal_cooling_device_register used to return NULL if THERMAL is "n". As the ACPI fan, processor and video drivers SELECT the generic thermal in PATCH 01, this is not a problem any more. Signed-off-by: Julia Lawall <julia@diku.dk> Signed-off-by: Zhang Rui <rui.zhang@intel.com> Signed-off-by: Len Brown <len.brown@intel.com>
| | | | | | | | | | | * thermal: update the documentationZhang Rui2008-04-291-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Update the documentation for the thermal driver hwmon sys I/F. Change the ACPI thermal zone type to be consistent with hwmon. Signed-off-by: Zhang Rui <rui.zhang@intel.com> Acked-by: Jean Delvare <khali@linux-fr.org> Signed-off-by: Len Brown <len.brown@intel.com>
| | | | | | | | | | | * thermal: add new get_crit_temp callbackZhang, Rui2008-04-291-0/+13
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Add a new callback so that the generic thermal can get the critical trip point info of a thermal zone, which is needed for building the tempX_crit hwmon sysfs attribute. Signed-off-by: Zhang Rui <rui.zhang@intel.com> Acked-by: Jean Delvare <khali@linux-fr.org> Signed-off-by: Len Brown <len.brown@intel.com>
| | | | | | | | | | | * thermal: add the support for building the generic thermal as a moduleZhang Rui2008-04-291-0/+3
| | | | | | | |_|_|_|/ | | | | | | |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Build the generic thermal driver as module "thermal_sys". Make ACPI thermal, video, processor and fan SELECT the generic thermal driver, as these drivers rely on it to build the sysfs I/F. Signed-off-by: Zhang Rui <rui.zhang@intel.com> Acked-by: Jean Delvare <khali@linux-fr.org> Signed-off-by: Len Brown <len.brown@intel.com>
| | | | | | | | | | * ACPI: crosslink ACPI and "real" device nodesDavid Brownell2008-02-231-0/+20
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Add cross-links between ACPI device and "real" devices in sysfs, exposing otherwise-hidden interrelationships between the various device nodes for ACPI stuff. As a representative example, one hardware device is exposed as two logical devices (PNP and ACPI): .../pnp0/00:06/ .../LNXSYSTM:00/device:00/PNP0A03:00/device:15/PNP0B00:00/ The PNP device gets a "firmware_node" link pointing to the ACPI device, and is what a Linux device driver binds to. The ACPI device has instead a "physical_node" link pointing back to the PNP device. Other firmware frameworks, like OpenFirmware, could do the same thing to couple their firmware tables to the rest of the system. (Based on a patch from Zhang Rui. This version is modified to not depend on the patch makig ACPI initialize driver model wakeup flags.) Signed-off-by: David Brownell <dbrownell@users.sourceforge.net> Cc: Zhang Rui <rui.zhang@intel.com> Signed-off-by: Len Brown <len.brown@intel.com>
| | | | | | | | * | | ACPI: re-name acpi_pm_ops to acpi_suspend_opsLen Brown2008-04-291-21/+21
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | ... as they are platform_suspend_ops after all. cosmetic re-name only, no functional change. Signed-off-by: Len Brown <len.brown@intel.com>
| | | | | | | | * | | ACPI: check a return value correctly in acpi_power_get_context()Li Zefan2008-04-291-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | We should check *resource != NULL rather than resource != NULL, which will be always true. Signed-off-by: Li Zefan <lizf@cn.fujitsu.com> Acked-by: Zhao Yakui <yakui.zhao@intel.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Len Brown <len.brown@intel.com>
| | | | | | | | * | | #if 0 acpi/bay.c:eject_removable_drive()Adrian Bunk2008-04-291-0/+2
| | | | | | | |/ / / | | | | | | |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch #if 0's the unused eject_removable_drive(). Signed-off-by: Adrian Bunk <bunk@kernel.org> Signed-off-by: Len Brown <len.brown@intel.com>
| | | | | | | * | | ACPI: Fix acpi_processor_idle and idle= boot parameters interactionVenkatesh Pallipadi2008-04-301-2/+12
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | acpi_processor_idle and "idle=" boot parameter interaction is broken. The problem is that, at boot time acpi driver is checking for "idle=" boot option and not registering the acpi idle handler. But, when there is a CST changed callback (typically when switching AC <-> battery or suspend-resume) there are no checks for boot_option_idle_override and acpi idle handler tries to get installed with nasty side effects. With CPU_IDLE configured this issue causes results in a nasty oops on CST change callback and without CPU_IDLE there is no oops, but boot option of "idle=" gets ignored and acpi idle handler gets installed. Change the behavior to not do anything in acpi idle handler when there is a "idle=" boot option. Note that the problem is only there when "idle=" boot option is used. Signed-off-by: Venkatesh Pallipadi <venkatesh.pallipadi@intel.com> Signed-off-by: Len Brown <len.brown@intel.com>
| | | | | | | * | | 2.6.25 regression: powertop says 120K wakeups/secVenkatesh Pallipadi2008-04-241-0/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Patch to fix huge number of wakeups reported due to recent changes in processor_idle.c. The problem was that the entry_method determination was broken due to one of the recent commits (bc71bec91f987) causing C1 entry to not to go to halt. http://lkml.org/lkml/2008/3/22/124 Signed-off-by: Venkatesh Pallipadi <venkatesh.pallipadi@intel.com> Signed-off-by: Len Brown <len.brown@intel.com>
| | | | | * | | | | ACPI: EC: Don't delete boot ECAlexey Starikovskiy2008-03-241-24/+19
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Signed-off-by: Alexey Starikovskiy <astarikovskiy@suse.de> Signed-off-by: Len Brown <len.brown@intel.com>
| | | | | * | | | | ACPI: EC: Use default setup handlerAlexey Starikovskiy2008-03-241-15/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Signed-off-by: Alexey Starikovskiy <astarikovskiy@suse.de> Signed-off-by: Len Brown <len.brown@intel.com>
| | | | | * | | | | ACPI: EC: Detect irq stormAlexey Starikovskiy2008-03-241-0/+11
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Problem seems to be that hw fails to clear GPE after we service it and write 1 into corresponding bit. Thus, as soon as we get interrupts enabled again, we receive a new one. Google gives too many results for "acer interrupt storm" for this being one-broken-machine case. Reference: http://bugzilla.kernel.org/show_bug.cgi?id=9998 Signed-off-by: Alexey Starikovskiy <astarikovskiy@suse.de> Signed-off-by: Len Brown <len.brown@intel.com>
| | | | | * | | | | ACPI: EC: Switch off GPE mode during suspend/resumeAlexey Starikovskiy2008-03-241-22/+38
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Signed-off-by: Alexey Starikovskiy <astarikovskiy@suse.de> Signed-off-by: Len Brown <len.brown@intel.com>
| | | | | * | | | | ACPI: EC: Replace broken controller workarounds with poll mode.Alexey Starikovskiy2008-03-241-49/+12
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Signed-off-by: Alexey Starikovskiy <astarikovskiy@suse.de> Signed-off-by: Len Brown <len.brown@intel.com>
| | | | | * | | | | ACPI: EC: Improve debug outputAlexey Starikovskiy2008-03-241-4/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Signed-off-by: Alexey Starikovskiy <astarikovskiy@suse.de> Signed-off-by: Len Brown <len.brown@intel.com>
| | | | | * | | | | ACPI: EC: Add poll timerAlexey Starikovskiy2008-03-241-4/+39
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | If we can not use interrupt mode of EC for some reason, start polling EC for events periodically. Signed-off-by: Alexey Starikovskiy <astarikovskiy@suse.de> Signed-off-by: Len Brown <len.brown@intel.com>
| | | | | * | | | | ACPI: EC: Restore udelay in poll modeAlexey Starikovskiy2008-03-241-0/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This fixes keyboard event handling on some systems. Note that this delay was thought unnecessary, and removed from linux-2.6.20 with 50c1e1138cb94f6aca0f8555777edbcefe0324e2 'ACPI: ec: Drop udelay() from poll mode. Loop by reading status field instead.' Signed-off-by: Alexey Starikovskiy <astarikovskiy@suse.de> Signed-off-by: Len Brown <len.brown@intel.com>
generated by cgit (git 2.34.1) at 2024-10-04 19:28:35 +0000