diff options
Diffstat (limited to 'qcom-Provide-support-for-ACPI.patch')
| -rw-r--r-- | qcom-Provide-support-for-ACPI.patch | 841 |
1 files changed, 0 insertions, 841 deletions
diff --git a/qcom-Provide-support-for-ACPI.patch b/qcom-Provide-support-for-ACPI.patch deleted file mode 100644 index 8e34a739d..000000000 --- a/qcom-Provide-support-for-ACPI.patch +++ /dev/null @@ -1,841 +0,0 @@ -From 0ab5b9df0c9f07ae747ddc678d4e423c42f69624 Mon Sep 17 00:00:00 2001 -From: Lee Jones <lee.jones@linaro.org> -Date: Mon, 10 Jun 2019 09:42:06 +0100 -Subject: [PATCH 1/8] i2c: i2c-qcom-geni: Provide support for ACPI - -Add a match table to allow automatic probing of ACPI device -QCOM0220. Ignore clock attainment errors. Set default clock -frequency value. - -Signed-off-by: Lee Jones <lee.jones@linaro.org> -Acked-by: Ard Biesheuvel <ard.biesheuvel@linaro.org> ---- - drivers/i2c/busses/i2c-qcom-geni.c | 15 ++++++++++++++- - 1 file changed, 14 insertions(+), 1 deletion(-) - -diff --git a/drivers/i2c/busses/i2c-qcom-geni.c b/drivers/i2c/busses/i2c-qcom-geni.c -index db075bc0d952..9e3b8a98688d 100644 ---- a/drivers/i2c/busses/i2c-qcom-geni.c -+++ b/drivers/i2c/busses/i2c-qcom-geni.c -@@ -1,6 +1,7 @@ - // SPDX-License-Identifier: GPL-2.0 - // Copyright (c) 2017-2018, The Linux Foundation. All rights reserved. - -+#include <linux/acpi.h> - #include <linux/clk.h> - #include <linux/dma-mapping.h> - #include <linux/err.h> -@@ -483,6 +484,14 @@ static const struct i2c_algorithm geni_i2c_algo = { - .functionality = geni_i2c_func, - }; - -+#ifdef CONFIG_ACPI -+static const struct acpi_device_id geni_i2c_acpi_match[] = { -+ { "QCOM0220"}, -+ { }, -+}; -+MODULE_DEVICE_TABLE(acpi, geni_i2c_acpi_match); -+#endif -+ - static int geni_i2c_probe(struct platform_device *pdev) - { - struct geni_i2c_dev *gi2c; -@@ -502,7 +511,7 @@ static int geni_i2c_probe(struct platform_device *pdev) - return PTR_ERR(gi2c->se.base); - - gi2c->se.clk = devm_clk_get(&pdev->dev, "se"); -- if (IS_ERR(gi2c->se.clk)) { -+ if (IS_ERR(gi2c->se.clk) && !has_acpi_companion(&pdev->dev)) { - ret = PTR_ERR(gi2c->se.clk); - dev_err(&pdev->dev, "Err getting SE Core clk %d\n", ret); - return ret; -@@ -516,6 +525,9 @@ static int geni_i2c_probe(struct platform_device *pdev) - gi2c->clk_freq_out = KHZ(100); - } - -+ if (has_acpi_companion(&pdev->dev)) -+ ACPI_COMPANION_SET(&gi2c->adap.dev, ACPI_COMPANION(&pdev->dev)); -+ - gi2c->irq = platform_get_irq(pdev, 0); - if (gi2c->irq < 0) { - dev_err(&pdev->dev, "IRQ error for i2c-geni\n"); -@@ -660,6 +672,7 @@ static struct platform_driver geni_i2c_driver = { - .name = "geni_i2c", - .pm = &geni_i2c_pm_ops, - .of_match_table = geni_i2c_dt_match, -+ .acpi_match_table = ACPI_PTR(geni_i2c_acpi_match), - }, - }; - --- -2.21.0 - -From 5a0639fed6e05977d85c4824354e73d0a2fa92ef Mon Sep 17 00:00:00 2001 -From: Lee Jones <lee.jones@linaro.org> -Date: Mon, 10 Jun 2019 09:42:07 +0100 -Subject: [PATCH 2/8] i2c: i2c-qcom-geni: Signify successful driver probe - -The Qualcomm Geni I2C driver currently probes silently which can be -confusing when debugging potential issues. Add a low level (INFO) -print when each I2C controller is successfully initially set-up. - -Signed-off-by: Lee Jones <lee.jones@linaro.org> -Acked-by: Ard Biesheuvel <ard.biesheuvel@linaro.org> ---- - drivers/i2c/busses/i2c-qcom-geni.c | 2 ++ - 1 file changed, 2 insertions(+) - -diff --git a/drivers/i2c/busses/i2c-qcom-geni.c b/drivers/i2c/busses/i2c-qcom-geni.c -index 9e3b8a98688d..a89bfce5388e 100644 ---- a/drivers/i2c/busses/i2c-qcom-geni.c -+++ b/drivers/i2c/busses/i2c-qcom-geni.c -@@ -596,6 +596,8 @@ static int geni_i2c_probe(struct platform_device *pdev) - return ret; - } - -+ dev_dbg(&pdev->dev, "Geni-I2C adaptor successfully added\n"); -+ - return 0; - } - --- -2.21.0 - -From 6f202eb6dbccf3172616a620faf934bf6195a0f9 Mon Sep 17 00:00:00 2001 -From: Lee Jones <lee.jones@linaro.org> -Date: Mon, 10 Jun 2019 09:42:08 +0100 -Subject: [PATCH 3/8] pinctrl: msm: Add ability for drivers to supply a - reserved GPIO list - -When booting MSM based platforms with Device Tree or some ACPI -implementations, it is possible to provide a list of reserved pins -via the 'gpio-reserved-ranges' and 'gpios' properties respectively. -However some ACPI tables are not populated with this information, -thus it has to come from a knowledgable device driver instead. - -Here we provide the MSM common driver with additional support to -parse this informtion and correctly populate the widely used -'valid_mask'. - -Signed-off-by: Lee Jones <lee.jones@linaro.org> -Reviewed-by: Bjorn Andersson <bjorn.andersson@linaro.org> ---- - drivers/pinctrl/qcom/pinctrl-msm.c | 18 ++++++++++++++++++ - drivers/pinctrl/qcom/pinctrl-msm.h | 1 + - 2 files changed, 19 insertions(+) - -diff --git a/drivers/pinctrl/qcom/pinctrl-msm.c b/drivers/pinctrl/qcom/pinctrl-msm.c -index 6e319bcc2326..80682b017a47 100644 ---- a/drivers/pinctrl/qcom/pinctrl-msm.c -+++ b/drivers/pinctrl/qcom/pinctrl-msm.c -@@ -599,8 +599,23 @@ static int msm_gpio_init_valid_mask(struct gpio_chip *chip) - int ret; - unsigned int len, i; - unsigned int max_gpios = pctrl->soc->ngpios; -+ const int *reserved = pctrl->soc->reserved_gpios; - u16 *tmp; - -+ /* Driver provided reserved list overrides DT and ACPI */ -+ if (reserved) { -+ bitmap_fill(chip->valid_mask, max_gpios); -+ for (i = 0; reserved[i] >= 0; i++) { -+ if (i >= max_gpios || reserved[i] >= max_gpios) { -+ dev_err(pctrl->dev, "invalid list of reserved GPIOs\n"); -+ return -EINVAL; -+ } -+ clear_bit(reserved[i], chip->valid_mask); -+ } -+ -+ return 0; -+ } -+ - /* The number of GPIOs in the ACPI tables */ - len = ret = device_property_read_u16_array(pctrl->dev, "gpios", NULL, - 0); -@@ -956,6 +971,9 @@ static void msm_gpio_irq_handler(struct irq_desc *desc) - - static bool msm_gpio_needs_valid_mask(struct msm_pinctrl *pctrl) - { -+ if (pctrl->soc->reserved_gpios) -+ return true; -+ - return device_property_read_u16_array(pctrl->dev, "gpios", NULL, 0) > 0; - } - -diff --git a/drivers/pinctrl/qcom/pinctrl-msm.h b/drivers/pinctrl/qcom/pinctrl-msm.h -index b724581c605c..48569cda8471 100644 ---- a/drivers/pinctrl/qcom/pinctrl-msm.h -+++ b/drivers/pinctrl/qcom/pinctrl-msm.h -@@ -113,6 +113,7 @@ struct msm_pinctrl_soc_data { - bool pull_no_keeper; - const char *const *tiles; - unsigned int ntiles; -+ const int *reserved_gpios; - }; - - extern const struct dev_pm_ops msm_pinctrl_dev_pm_ops; --- -2.21.0 - -From 568ff4c9723d761164416fdf876232f5b14cf3ad Mon Sep 17 00:00:00 2001 -From: Lee Jones <lee.jones@linaro.org> -Date: Mon, 10 Jun 2019 09:42:09 +0100 -Subject: [PATCH 4/8] pinctrl: qcom: sdm845: Provide ACPI support - -This patch provides basic support for booting with ACPI instead -of the currently supported Device Tree. When doing so there are a -couple of differences which we need to taken into consideration. - -Firstly, the SDM850 ACPI tables omit information pertaining to the -4 reserved GPIOs on the platform. If Linux attempts to touch/ -initialise any of these lines, the firmware will restart the -platform. - -Secondly, when booting with ACPI, it is expected that the firmware -will set-up things like; Regulators, Clocks, Pin Functions, etc in -their ideal configuration. Thus, the possible Pin Functions -available to this platform are not advertised when providing the -higher GPIOD/Pinctrl APIs with pin information. - -Signed-off-by: Lee Jones <lee.jones@linaro.org> -Acked-by: Ard Biesheuvel <ard.biesheuvel@linaro.org> ---- - drivers/pinctrl/qcom/Kconfig | 2 +- - drivers/pinctrl/qcom/pinctrl-sdm845.c | 36 ++++++++++++++++++++++++++- - 2 files changed, 36 insertions(+), 2 deletions(-) - -diff --git a/drivers/pinctrl/qcom/Kconfig b/drivers/pinctrl/qcom/Kconfig -index 890d0a3a790b..27ab585a639c 100644 ---- a/drivers/pinctrl/qcom/Kconfig -+++ b/drivers/pinctrl/qcom/Kconfig -@@ -169,7 +169,7 @@ config PINCTRL_SDM660 - - config PINCTRL_SDM845 - tristate "Qualcomm Technologies Inc SDM845 pin controller driver" -- depends on GPIOLIB && OF -+ depends on GPIOLIB && (OF || ACPI) - select PINCTRL_MSM - help - This is the pinctrl, pinmux, pinconf and gpiolib driver for the -diff --git a/drivers/pinctrl/qcom/pinctrl-sdm845.c b/drivers/pinctrl/qcom/pinctrl-sdm845.c -index c97f20fca5fd..98a438dba711 100644 ---- a/drivers/pinctrl/qcom/pinctrl-sdm845.c -+++ b/drivers/pinctrl/qcom/pinctrl-sdm845.c -@@ -3,6 +3,7 @@ - * Copyright (c) 2016-2018, The Linux Foundation. All rights reserved. - */ - -+#include <linux/acpi.h> - #include <linux/module.h> - #include <linux/of.h> - #include <linux/platform_device.h> -@@ -1277,6 +1278,10 @@ static const struct msm_pingroup sdm845_groups[] = { - UFS_RESET(ufs_reset, 0x99f000), - }; - -+static const int sdm845_acpi_reserved_gpios[] = { -+ 0, 1, 2, 3, 81, 82, 83, 84, -1 -+}; -+ - static const struct msm_pinctrl_soc_data sdm845_pinctrl = { - .pins = sdm845_pins, - .npins = ARRAY_SIZE(sdm845_pins), -@@ -1287,11 +1292,39 @@ static const struct msm_pinctrl_soc_data sdm845_pinctrl = { - .ngpios = 150, - }; - -+static const struct msm_pinctrl_soc_data sdm845_acpi_pinctrl = { -+ .pins = sdm845_pins, -+ .npins = ARRAY_SIZE(sdm845_pins), -+ .groups = sdm845_groups, -+ .ngroups = ARRAY_SIZE(sdm845_groups), -+ .reserved_gpios = sdm845_acpi_reserved_gpios, -+ .ngpios = 150, -+}; -+ - static int sdm845_pinctrl_probe(struct platform_device *pdev) - { -- return msm_pinctrl_probe(pdev, &sdm845_pinctrl); -+ int ret; -+ -+ if (pdev->dev.of_node) { -+ ret = msm_pinctrl_probe(pdev, &sdm845_pinctrl); -+ } else if (has_acpi_companion(&pdev->dev)) { -+ ret = msm_pinctrl_probe(pdev, &sdm845_acpi_pinctrl); -+ } else { -+ dev_err(&pdev->dev, "DT and ACPI disabled\n"); -+ return -EINVAL; -+ } -+ -+ return ret; - } - -+#if CONFIG_ACPI -+static const struct acpi_device_id sdm845_pinctrl_acpi_match[] = { -+ { "QCOM0217"}, -+ { }, -+}; -+MODULE_DEVICE_TABLE(acpi, sdm845_pinctrl_acpi_match); -+#endif -+ - static const struct of_device_id sdm845_pinctrl_of_match[] = { - { .compatible = "qcom,sdm845-pinctrl", }, - { }, -@@ -1302,6 +1335,7 @@ static struct platform_driver sdm845_pinctrl_driver = { - .name = "sdm845-pinctrl", - .pm = &msm_pinctrl_dev_pm_ops, - .of_match_table = sdm845_pinctrl_of_match, -+ .acpi_match_table = ACPI_PTR(sdm845_pinctrl_acpi_match), - }, - .probe = sdm845_pinctrl_probe, - .remove = msm_pinctrl_remove, --- -2.21.0 - -From 1960f541ea437ed1c704db11b9ca24a5248b31de Mon Sep 17 00:00:00 2001 -From: Lee Jones <lee.jones@linaro.org> -Date: Mon, 10 Jun 2019 09:42:10 +0100 -Subject: [PATCH 5/8] soc: qcom: geni: Add support for ACPI - -When booting with ACPI as the active set of configuration tables, -all; clocks, regulators, pin functions ect are expected to be at -their ideal values/levels/rates, thus the associated frameworks -are unavailable. Ensure calls to these APIs are shielded when -ACPI is enabled. - -Signed-off-by: Lee Jones <lee.jones@linaro.org> -Acked-by: Ard Biesheuvel <ard.biesheuvel@linaro.org> ---- - drivers/soc/qcom/qcom-geni-se.c | 21 +++++++++++++++------ - 1 file changed, 15 insertions(+), 6 deletions(-) - -diff --git a/drivers/soc/qcom/qcom-geni-se.c b/drivers/soc/qcom/qcom-geni-se.c -index 6b8ef01472e9..d5cf953b4337 100644 ---- a/drivers/soc/qcom/qcom-geni-se.c -+++ b/drivers/soc/qcom/qcom-geni-se.c -@@ -1,6 +1,7 @@ - // SPDX-License-Identifier: GPL-2.0 - // Copyright (c) 2017-2018, The Linux Foundation. All rights reserved. - -+#include <linux/acpi.h> - #include <linux/clk.h> - #include <linux/slab.h> - #include <linux/dma-mapping.h> -@@ -450,6 +451,9 @@ int geni_se_resources_off(struct geni_se *se) - { - int ret; - -+ if (has_acpi_companion(se->dev)) -+ return 0; -+ - ret = pinctrl_pm_select_sleep_state(se->dev); - if (ret) - return ret; -@@ -487,6 +491,9 @@ int geni_se_resources_on(struct geni_se *se) - { - int ret; - -+ if (has_acpi_companion(se->dev)) -+ return 0; -+ - ret = geni_se_clks_on(se); - if (ret) - return ret; -@@ -724,12 +731,14 @@ static int geni_se_probe(struct platform_device *pdev) - if (IS_ERR(wrapper->base)) - return PTR_ERR(wrapper->base); - -- wrapper->ahb_clks[0].id = "m-ahb"; -- wrapper->ahb_clks[1].id = "s-ahb"; -- ret = devm_clk_bulk_get(dev, NUM_AHB_CLKS, wrapper->ahb_clks); -- if (ret) { -- dev_err(dev, "Err getting AHB clks %d\n", ret); -- return ret; -+ if (!has_acpi_companion(&pdev->dev)) { -+ wrapper->ahb_clks[0].id = "m-ahb"; -+ wrapper->ahb_clks[1].id = "s-ahb"; -+ ret = devm_clk_bulk_get(dev, NUM_AHB_CLKS, wrapper->ahb_clks); -+ if (ret) { -+ dev_err(dev, "Err getting AHB clks %d\n", ret); -+ return ret; -+ } - } - - dev_set_drvdata(dev, wrapper); --- -2.21.0 - -From 0b10a369e159e4b76d1a786f613a2f061cdc3246 Mon Sep 17 00:00:00 2001 -From: Peter Robinson <pbrobinson@gmail.com> -Date: Mon, 10 Jun 2019 10:31:02 +0100 -Subject: [PATCH 6/8] usb: dwc3: qcom: Add support for booting with ACPI - -In Linux, the DWC3 core exists as its own independent platform device. -Thus when describing relationships in Device Tree, the current default -boot configuration table option, the DWC3 core often resides as a child -of the platform specific node. Both of which are given their own -address space descriptions and the drivers can be mostly agnostic to -each other. - -However, other Operating Systems have taken a more monolithic approach, -which is evident in the configuration ACPI tables for the Qualcomm -Snapdragon SDM850, where all DWC3 (core and platform) components are -described under a single IO memory region. - -To ensure successful booting using the supplied ACPI tables, we need to -devise a way to chop up the address regions provided and subsequently -register the DWC3 core with the resultant information, which is -precisely what this patch aims to achieve. - -Signed-off-by: Lee Jones <lee.jones@linaro.org> -Signed-off-by: Peter Robinson <pbrobinson@gmail.com> ---- - drivers/usb/dwc3/Kconfig | 2 +- - drivers/usb/dwc3/dwc3-qcom.c | 206 ++++++++++++++++++++++++++++++----- - 2 files changed, 179 insertions(+), 29 deletions(-) - -diff --git a/drivers/usb/dwc3/Kconfig b/drivers/usb/dwc3/Kconfig -index 4a62045cc812..89abc6078703 100644 ---- a/drivers/usb/dwc3/Kconfig -+++ b/drivers/usb/dwc3/Kconfig -@@ -128,7 +128,7 @@ config USB_DWC3_QCOM - tristate "Qualcomm Platform" - depends on ARCH_QCOM || COMPILE_TEST - depends on EXTCON || !EXTCON -- depends on OF -+ depends on (OF || ACPI) - default USB_DWC3 - help - Some Qualcomm SoCs use DesignWare Core IP for USB2/3 -diff --git a/drivers/usb/dwc3/dwc3-qcom.c b/drivers/usb/dwc3/dwc3-qcom.c -index 184df4daa590..1e1f12b7991d 100644 ---- a/drivers/usb/dwc3/dwc3-qcom.c -+++ b/drivers/usb/dwc3/dwc3-qcom.c -@@ -4,6 +4,7 @@ - * Inspired by dwc3-of-simple.c - */ - -+#include <linux/acpi.h> - #include <linux/io.h> - #include <linux/of.h> - #include <linux/clk.h> -@@ -38,6 +39,20 @@ - #define PWR_EVNT_LPM_IN_L2_MASK BIT(4) - #define PWR_EVNT_LPM_OUT_L2_MASK BIT(5) - -+#define SDM845_QSCRATCH_BASE_OFFSET 0xf8800 -+#define SDM845_QSCRATCH_SIZE 0x400 -+#define SDM845_DWC3_CORE_SIZE 0xcd00 -+ -+struct dwc3_acpi_pdata { -+ u32 qscratch_base_offset; -+ u32 qscratch_base_size; -+ u32 dwc3_core_base_size; -+ int hs_phy_irq_index; -+ int dp_hs_phy_irq_index; -+ int dm_hs_phy_irq_index; -+ int ss_phy_irq_index; -+}; -+ - struct dwc3_qcom { - struct device *dev; - void __iomem *qscratch_base; -@@ -56,6 +71,8 @@ struct dwc3_qcom { - struct notifier_block vbus_nb; - struct notifier_block host_nb; - -+ const struct dwc3_acpi_pdata *acpi_pdata; -+ - enum usb_dr_mode mode; - bool is_suspended; - bool pm_suspended; -@@ -300,12 +317,27 @@ static void dwc3_qcom_select_utmi_clk(struct dwc3_qcom *qcom) - PIPE_UTMI_CLK_DIS); - } - -+static int dwc3_qcom_get_irq(struct platform_device *pdev, -+ const char *name, int num) -+{ -+ struct device_node *np = pdev->dev.of_node; -+ int ret; -+ -+ if (np) -+ ret = platform_get_irq_byname(pdev, name); -+ else -+ ret = platform_get_irq(pdev, num); -+ -+ return ret; -+} -+ - static int dwc3_qcom_setup_irq(struct platform_device *pdev) - { - struct dwc3_qcom *qcom = platform_get_drvdata(pdev); -+ const struct dwc3_acpi_pdata *pdata = qcom->acpi_pdata; - int irq, ret; -- -- irq = platform_get_irq_byname(pdev, "hs_phy_irq"); -+ irq = dwc3_qcom_get_irq(pdev, "hs_phy_irq", -+ pdata ? pdata->hs_phy_irq_index : -1); - if (irq > 0) { - /* Keep wakeup interrupts disabled until suspend */ - irq_set_status_flags(irq, IRQ_NOAUTOEN); -@@ -320,7 +352,8 @@ static int dwc3_qcom_setup_irq(struct platform_device *pdev) - qcom->hs_phy_irq = irq; - } - -- irq = platform_get_irq_byname(pdev, "dp_hs_phy_irq"); -+ irq = dwc3_qcom_get_irq(pdev, "dp_hs_phy_irq", -+ pdata ? pdata->dp_hs_phy_irq_index : -1); - if (irq > 0) { - irq_set_status_flags(irq, IRQ_NOAUTOEN); - ret = devm_request_threaded_irq(qcom->dev, irq, NULL, -@@ -334,7 +367,8 @@ static int dwc3_qcom_setup_irq(struct platform_device *pdev) - qcom->dp_hs_phy_irq = irq; - } - -- irq = platform_get_irq_byname(pdev, "dm_hs_phy_irq"); -+ irq = dwc3_qcom_get_irq(pdev, "dm_hs_phy_irq", -+ pdata ? pdata->dm_hs_phy_irq_index : -1); - if (irq > 0) { - irq_set_status_flags(irq, IRQ_NOAUTOEN); - ret = devm_request_threaded_irq(qcom->dev, irq, NULL, -@@ -348,7 +382,8 @@ static int dwc3_qcom_setup_irq(struct platform_device *pdev) - qcom->dm_hs_phy_irq = irq; - } - -- irq = platform_get_irq_byname(pdev, "ss_phy_irq"); -+ irq = dwc3_qcom_get_irq(pdev, "ss_phy_irq", -+ pdata ? pdata->ss_phy_irq_index : -1); - if (irq > 0) { - irq_set_status_flags(irq, IRQ_NOAUTOEN); - ret = devm_request_threaded_irq(qcom->dev, irq, NULL, -@@ -371,11 +406,11 @@ static int dwc3_qcom_clk_init(struct dwc3_qcom *qcom, int count) - struct device_node *np = dev->of_node; - int i; - -- qcom->num_clocks = count; -- -- if (!count) -+ if (!np || !count) - return 0; - -+ qcom->num_clocks = count; -+ - qcom->clks = devm_kcalloc(dev, qcom->num_clocks, - sizeof(struct clk *), GFP_KERNEL); - if (!qcom->clks) -@@ -409,12 +444,103 @@ static int dwc3_qcom_clk_init(struct dwc3_qcom *qcom, int count) - return 0; - } - --static int dwc3_qcom_probe(struct platform_device *pdev) -+static int dwc3_qcom_acpi_register_core(struct platform_device *pdev) - { -+ struct dwc3_qcom *qcom = platform_get_drvdata(pdev); -+ struct device *dev = &pdev->dev; -+ struct resource *res, *child_res = NULL; -+ int irq; -+ int ret; -+ -+ qcom->dwc3 = platform_device_alloc("dwc3", PLATFORM_DEVID_AUTO); -+ if (!qcom->dwc3) -+ return -ENOMEM; -+ -+ qcom->dwc3->dev.parent = dev; -+ qcom->dwc3->dev.type = dev->type; -+ qcom->dwc3->dev.dma_mask = dev->dma_mask; -+ qcom->dwc3->dev.dma_parms = dev->dma_parms; -+ qcom->dwc3->dev.coherent_dma_mask = dev->coherent_dma_mask; -+ -+ child_res = kcalloc(2, sizeof(*child_res), GFP_KERNEL); -+ if (!child_res) -+ return -ENOMEM; -+ -+ res = platform_get_resource(pdev, IORESOURCE_MEM, 0); -+ if (!res) { -+ dev_err(&pdev->dev, "failed to get memory resource\n"); -+ ret = -ENODEV; -+ goto out; -+ } -+ -+ child_res[0].flags = res->flags; -+ child_res[0].start = res->start; -+ child_res[0].end = child_res[0].start + -+ qcom->acpi_pdata->dwc3_core_base_size; -+ -+ irq = platform_get_irq(pdev, 0); -+ child_res[1].flags = IORESOURCE_IRQ; -+ child_res[1].start = child_res[1].end = irq; -+ -+ ret = platform_device_add_resources(qcom->dwc3, child_res, 2); -+ if (ret) { -+ dev_err(&pdev->dev, "failed to add resources\n"); -+ goto out; -+ } -+ -+ ret = platform_device_add(qcom->dwc3); -+ if (ret) -+ dev_err(&pdev->dev, "failed to add device\n"); -+ -+out: -+ kfree(child_res); -+ return ret; -+} -+ -+static int dwc3_qcom_of_register_core(struct platform_device *pdev) -+{ -+ struct dwc3_qcom *qcom = platform_get_drvdata(pdev); - struct device_node *np = pdev->dev.of_node, *dwc3_np; - struct device *dev = &pdev->dev; -+ int ret; -+ -+ dwc3_np = of_get_child_by_name(np, "dwc3"); -+ if (!dwc3_np) { -+ dev_err(dev, "failed to find dwc3 core child\n"); -+ return -ENODEV; -+ } -+ -+ ret = of_platform_populate(np, NULL, NULL, dev); -+ if (ret) { -+ dev_err(dev, "failed to register dwc3 core - %d\n", ret); -+ return ret; -+ } -+ -+ qcom->dwc3 = of_find_device_by_node(dwc3_np); -+ if (!qcom->dwc3) { -+ dev_err(dev, "failed to get dwc3 platform device\n"); -+ return -ENODEV; -+ } -+ -+ return 0; -+} -+ -+static const struct dwc3_acpi_pdata sdm845_acpi_pdata = { -+ .qscratch_base_offset = SDM845_QSCRATCH_BASE_OFFSET, -+ .qscratch_base_size = SDM845_QSCRATCH_SIZE, -+ .dwc3_core_base_size = SDM845_DWC3_CORE_SIZE, -+ .hs_phy_irq_index = 1, -+ .dp_hs_phy_irq_index = 4, -+ .dm_hs_phy_irq_index = 3, -+ .ss_phy_irq_index = 2 -+}; -+ -+static int dwc3_qcom_probe(struct platform_device *pdev) -+{ -+ struct device_node *np = pdev->dev.of_node; -+ struct device *dev = &pdev->dev; - struct dwc3_qcom *qcom; -- struct resource *res; -+ struct resource *res, *parent_res = NULL; - int ret, i; - bool ignore_pipe_clk; - -@@ -425,6 +551,14 @@ static int dwc3_qcom_probe(struct platform_device *pdev) - platform_set_drvdata(pdev, qcom); - qcom->dev = &pdev->dev; - -+ if (ACPI_HANDLE(dev)) { -+ qcom->acpi_pdata = acpi_device_get_match_data(dev); -+ if (!qcom->acpi_pdata) { -+ dev_err(&pdev->dev, "no supporting ACPI device data\n"); -+ return -EINVAL; -+ } -+ } -+ - qcom->resets = devm_reset_control_array_get_optional_exclusive(dev); - if (IS_ERR(qcom->resets)) { - ret = PTR_ERR(qcom->resets); -@@ -454,7 +588,21 @@ static int dwc3_qcom_probe(struct platform_device *pdev) - } - - res = platform_get_resource(pdev, IORESOURCE_MEM, 0); -- qcom->qscratch_base = devm_ioremap_resource(dev, res); -+ -+ if (np) { -+ parent_res = res; -+ } else { -+ parent_res = kmemdup(res, sizeof(struct resource), GFP_KERNEL); -+ if (!parent_res) -+ return -ENOMEM; -+ -+ parent_res->start = res->start + -+ qcom->acpi_pdata->qscratch_base_offset; -+ parent_res->end = parent_res->start + -+ qcom->acpi_pdata->qscratch_base_size; -+ } -+ -+ qcom->qscratch_base = devm_ioremap_resource(dev, parent_res); - if (IS_ERR(qcom->qscratch_base)) { - dev_err(dev, "failed to map qscratch, err=%d\n", ret); - ret = PTR_ERR(qcom->qscratch_base); -@@ -462,13 +610,8 @@ static int dwc3_qcom_probe(struct platform_device *pdev) - } - - ret = dwc3_qcom_setup_irq(pdev); -- if (ret) -- goto clk_disable; -- -- dwc3_np = of_get_child_by_name(np, "dwc3"); -- if (!dwc3_np) { -- dev_err(dev, "failed to find dwc3 core child\n"); -- ret = -ENODEV; -+ if (ret) { -+ dev_err(dev, "failed to setup IRQs, err=%d\n", ret); - goto clk_disable; - } - -@@ -481,16 +624,13 @@ static int dwc3_qcom_probe(struct platform_device *pdev) - if (ignore_pipe_clk) - dwc3_qcom_select_utmi_clk(qcom); - -- ret = of_platform_populate(np, NULL, NULL, dev); -- if (ret) { -- dev_err(dev, "failed to register dwc3 core - %d\n", ret); -- goto clk_disable; -- } -+ if (np) -+ ret = dwc3_qcom_of_register_core(pdev); -+ else -+ ret = dwc3_qcom_acpi_register_core(pdev); - -- qcom->dwc3 = of_find_device_by_node(dwc3_np); -- if (!qcom->dwc3) { -- dev_err(&pdev->dev, "failed to get dwc3 platform device\n"); -- ret = -ENODEV; -+ if (ret) { -+ dev_err(dev, "failed to register DWC3 Core, err=%d\n", ret); - goto depopulate; - } - -@@ -514,7 +654,10 @@ static int dwc3_qcom_probe(struct platform_device *pdev) - return 0; - - depopulate: -- of_platform_depopulate(&pdev->dev); -+ if (np) -+ of_platform_depopulate(&pdev->dev); -+ else -+ platform_device_put(pdev); - clk_disable: - for (i = qcom->num_clocks - 1; i >= 0; i--) { - clk_disable_unprepare(qcom->clks[i]); -@@ -601,6 +744,12 @@ static const struct of_device_id dwc3_qcom_of_match[] = { - }; - MODULE_DEVICE_TABLE(of, dwc3_qcom_of_match); - -+static const struct acpi_device_id dwc3_qcom_acpi_match[] = { -+ { "QCOM2430", (unsigned long)&sdm845_acpi_pdata }, -+ { }, -+}; -+MODULE_DEVICE_TABLE(acpi, dwc3_qcom_acpi_match); -+ - static struct platform_driver dwc3_qcom_driver = { - .probe = dwc3_qcom_probe, - .remove = dwc3_qcom_remove, -@@ -608,6 +757,7 @@ static struct platform_driver dwc3_qcom_driver = { - .name = "dwc3-qcom", - .pm = &dwc3_qcom_dev_pm_ops, - .of_match_table = dwc3_qcom_of_match, -+ .acpi_match_table = ACPI_PTR(dwc3_qcom_acpi_match), - }, - }; - --- -2.21.0 - -From 2511cdbc0cdd6dea8226fbb984418f06bc1983a9 Mon Sep 17 00:00:00 2001 -From: Lee Jones <lee.jones@linaro.org> -Date: Mon, 10 Jun 2019 09:42:12 +0100 -Subject: [PATCH 7/8] usb: dwc3: qcom: Start USB in 'host mode' on the SDM845 - -When booting with Device Tree, the current default boot configuration -table option, the request to boot via 'host mode' comes from the -'dr_mode' property. A property of the same name can be used inside -ACPI tables too. However it is missing from the SDM845's ACPI tables -so we have to supply this information using Platform Device Properties -instead. - -This does not change the behaviour of any currently supported devices. -The property is only set on ACPI enabled platforms, thus for H/W -booting DT, unless a 'dr_mode' property is present, the default is -still OTG (On-The-Go) as per [0]. Any new ACPI devices added will -also be able to over-ride this implementation by providing a 'dr_mode' -property in their ACPI tables. In cases where 'dr_mode' is omitted -from the tables AND 'host mode' should not be the default (very -unlikely), then we will have to add some way of choosing between them -at run time - most likely by ACPI HID. - -[0] Documentation/devicetree/bindings/usb/generic.txt - -Signed-off-by: Lee Jones <lee.jones@linaro.org> ---- - drivers/usb/dwc3/dwc3-qcom.c | 12 ++++++++++++ - 1 file changed, 12 insertions(+) - -diff --git a/drivers/usb/dwc3/dwc3-qcom.c b/drivers/usb/dwc3/dwc3-qcom.c -index 1e1f12b7991d..55ba04254e38 100644 ---- a/drivers/usb/dwc3/dwc3-qcom.c -+++ b/drivers/usb/dwc3/dwc3-qcom.c -@@ -444,6 +444,11 @@ static int dwc3_qcom_clk_init(struct dwc3_qcom *qcom, int count) - return 0; - } - -+static const struct property_entry dwc3_qcom_acpi_properties[] = { -+ PROPERTY_ENTRY_STRING("dr_mode", "host"), -+ {} -+}; -+ - static int dwc3_qcom_acpi_register_core(struct platform_device *pdev) - { - struct dwc3_qcom *qcom = platform_get_drvdata(pdev); -@@ -488,6 +493,13 @@ static int dwc3_qcom_acpi_register_core(struct platform_device *pdev) - goto out; - } - -+ ret = platform_device_add_properties(qcom->dwc3, -+ dwc3_qcom_acpi_properties); -+ if (ret < 0) { -+ dev_err(&pdev->dev, "failed to add properties\n"); -+ goto out; -+ } -+ - ret = platform_device_add(qcom->dwc3); - if (ret) - dev_err(&pdev->dev, "failed to add device\n"); --- -2.21.0 - -From 63a5217702e09f913bcc2d1c98285e7f3d9d1f31 Mon Sep 17 00:00:00 2001 -From: Lee Jones <lee.jones@linaro.org> -Date: Mon, 10 Jun 2019 09:42:13 +0100 -Subject: [PATCH 8/8] usb: dwc3: qcom: Improve error handling - -dwc3_qcom_clk_init() is called with of_count_phandle_with_args() as an -argument. If of_count_phandle_with_args() returns an error, the number -of clocks will be a negative value and will lead to undefined behaviour. - -Ensure we check for an error before attempting to blindly use the value. - -Signed-off-by: Lee Jones <lee.jones@linaro.org> -Reviewed-by: Bjorn Andersson <bjorn.andersson@linaro.org> ---- - drivers/usb/dwc3/dwc3-qcom.c | 3 +++ - 1 file changed, 3 insertions(+) - -diff --git a/drivers/usb/dwc3/dwc3-qcom.c b/drivers/usb/dwc3/dwc3-qcom.c -index 55ba04254e38..e4dac82abd7d 100644 ---- a/drivers/usb/dwc3/dwc3-qcom.c -+++ b/drivers/usb/dwc3/dwc3-qcom.c -@@ -409,6 +409,9 @@ static int dwc3_qcom_clk_init(struct dwc3_qcom *qcom, int count) - if (!np || !count) - return 0; - -+ if (count < 0) -+ return count; -+ - qcom->num_clocks = count; - - qcom->clks = devm_kcalloc(dev, qcom->num_clocks, --- -2.21.0 - |