To support flattened dwc3 dt model and drop the glue layer, introduce the
`dwc3-generic` driver. This enables direct binding of the DWC3 core driver
and offers an alternative to the existing glue driver `dwc3-of-simple`.

Signed-off-by: Ze Huang <huang.ze@linux.dev>
---
 drivers/usb/dwc3/Kconfig             |  11 +++
 drivers/usb/dwc3/Makefile            |   1 +
 drivers/usb/dwc3/dwc3-generic-plat.c | 182 +++++++++++++++++++++++++++++++++++
 3 files changed, 194 insertions(+)

diff --git a/drivers/usb/dwc3/Kconfig b/drivers/usb/dwc3/Kconfig
index 310d182e10b50b253d7e5a51674806e6ec442a2a..4925d15084f816d3ff92059b476ebcc799b56b51 100644
--- a/drivers/usb/dwc3/Kconfig
+++ b/drivers/usb/dwc3/Kconfig
@@ -189,4 +189,15 @@ config USB_DWC3_RTK
 	  or dual-role mode.
 	  Say 'Y' or 'M' if you have such device.
 
+config USB_DWC3_GENERIC_PLAT
+	tristate "DWC3 Generic Platform Driver"
+	depends on OF && COMMON_CLK
+	default USB_DWC3
+	help
+	  Support USB3 functionality in simple SoC integrations.
+	  Currently supports SpacemiT DWC USB3. Platforms using
+	  dwc3-of-simple can easily switch to dwc3-generic by flattening
+	  the dwc3 child node in the device tree.
+	  Say 'Y' or 'M' here if your platform integrates DWC3 in a similar way.
+
 endif
diff --git a/drivers/usb/dwc3/Makefile b/drivers/usb/dwc3/Makefile
index 830e6c9e5fe073c1f662ce34b6a4a2da34c407a2..96469e48ff9d189cc8d0b65e65424eae2158bcfe 100644
--- a/drivers/usb/dwc3/Makefile
+++ b/drivers/usb/dwc3/Makefile
@@ -57,3 +57,4 @@ obj-$(CONFIG_USB_DWC3_IMX8MP)		+= dwc3-imx8mp.o
 obj-$(CONFIG_USB_DWC3_XILINX)		+= dwc3-xilinx.o
 obj-$(CONFIG_USB_DWC3_OCTEON)		+= dwc3-octeon.o
 obj-$(CONFIG_USB_DWC3_RTK)		+= dwc3-rtk.o
+obj-$(CONFIG_USB_DWC3_GENERIC_PLAT)	+= dwc3-generic-plat.o
diff --git a/drivers/usb/dwc3/dwc3-generic-plat.c b/drivers/usb/dwc3/dwc3-generic-plat.c
new file mode 100644
index 0000000000000000000000000000000000000000..f251dda60903364d6b326a0904ec9b113e61f5c0
--- /dev/null
+++ b/drivers/usb/dwc3/dwc3-generic-plat.c
@@ -0,0 +1,182 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * dwc3-generic-plat.c - DesignWare USB3 generic platform driver
+ *
+ * Copyright (C) 2025 Ze Huang <huang.ze@linux.dev>
+ *
+ * Inspired by dwc3-qcom.c and dwc3-of-simple.c
+ */
+
+#include <linux/clk.h>
+#include <linux/platform_device.h>
+#include <linux/reset.h>
+#include "glue.h"
+
+struct dwc3_generic {
+	struct device		*dev;
+	struct dwc3		dwc;
+	struct clk_bulk_data	*clks;
+	int			num_clocks;
+	struct reset_control	*resets;
+};
+
+static void dwc3_generic_reset_control_assert(void *data)
+{
+	reset_control_assert(data);
+}
+
+static void dwc3_generic_clk_bulk_disable_unprepare(void *data)
+{
+	struct dwc3_generic *dwc3 = data;
+
+	clk_bulk_disable_unprepare(dwc3->num_clocks, dwc3->clks);
+}
+
+static int dwc3_generic_probe(struct platform_device *pdev)
+{
+	struct dwc3_probe_data probe_data = {};
+	struct device *dev = &pdev->dev;
+	struct dwc3_generic *dwc3;
+	struct resource *res;
+	int ret;
+
+	dwc3 = devm_kzalloc(dev, sizeof(*dwc3), GFP_KERNEL);
+	if (!dwc3)
+		return -ENOMEM;
+
+	dwc3->dev = dev;
+
+	platform_set_drvdata(pdev, dwc3);
+
+	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+	if (!res) {
+		dev_err(&pdev->dev, "missing memory resource\n");
+		return -ENODEV;
+	}
+
+	dwc3->resets = devm_reset_control_array_get_optional_exclusive(dev);
+	if (IS_ERR(dwc3->resets))
+		return dev_err_probe(dev, PTR_ERR(dwc3->resets), "failed to get resets\n");
+
+	ret = reset_control_assert(dwc3->resets);
+	if (ret)
+		return dev_err_probe(dev, ret, "failed to assert resets\n");
+
+	ret = devm_add_action_or_reset(dev, dwc3_generic_reset_control_assert, dwc3->resets);
+	if (ret)
+		return ret;
+
+	usleep_range(10, 1000);
+
+	ret = reset_control_deassert(dwc3->resets);
+	if (ret)
+		return dev_err_probe(dev, ret, "failed to deassert resets\n");
+
+	ret = devm_clk_bulk_get_all(dwc3->dev, &dwc3->clks);
+	if (ret < 0)
+		return dev_err_probe(dev, ret, "failed to get clocks\n");
+
+	dwc3->num_clocks = ret;
+
+	ret = clk_bulk_prepare_enable(dwc3->num_clocks, dwc3->clks);
+	if (ret)
+		return dev_err_probe(dev, ret, "failed to enable clocks\n");
+
+	ret = devm_add_action_or_reset(dev, dwc3_generic_clk_bulk_disable_unprepare, dwc3);
+	if (ret)
+		return ret;
+
+	dwc3->dwc.dev = dev;
+	probe_data.dwc = &dwc3->dwc;
+	probe_data.res = res;
+	probe_data.ignore_clocks_and_resets = true;
+	ret = dwc3_core_probe(&probe_data);
+	if (ret)
+		return dev_err_probe(dev, ret, "failed to register DWC3 Core\n");
+
+	return 0;
+}
+
+static void dwc3_generic_remove(struct platform_device *pdev)
+{
+	struct dwc3_generic *dwc3 = platform_get_drvdata(pdev);
+
+	dwc3_core_remove(&dwc3->dwc);
+}
+
+static int dwc3_generic_suspend(struct device *dev)
+{
+	struct dwc3_generic *dwc3 = dev_get_drvdata(dev);
+	int ret;
+
+	ret = dwc3_pm_suspend(&dwc3->dwc);
+	if (ret)
+		return ret;
+
+	clk_bulk_disable_unprepare(dwc3->num_clocks, dwc3->clks);
+
+	return 0;
+}
+
+static int dwc3_generic_resume(struct device *dev)
+{
+	struct dwc3_generic *dwc3 = dev_get_drvdata(dev);
+	int ret;
+
+	ret = clk_bulk_prepare_enable(dwc3->num_clocks, dwc3->clks);
+	if (ret)
+		return ret;
+
+	ret = dwc3_pm_resume(&dwc3->dwc);
+	if (ret)
+		return ret;
+
+	return 0;
+}
+
+static int dwc3_generic_runtime_suspend(struct device *dev)
+{
+	struct dwc3_generic *dwc3 = dev_get_drvdata(dev);
+
+	return dwc3_runtime_suspend(&dwc3->dwc);
+}
+
+static int dwc3_generic_runtime_resume(struct device *dev)
+{
+	struct dwc3_generic *dwc3 = dev_get_drvdata(dev);
+
+	return dwc3_runtime_resume(&dwc3->dwc);
+}
+
+static int dwc3_generic_runtime_idle(struct device *dev)
+{
+	struct dwc3_generic *dwc3 = dev_get_drvdata(dev);
+
+	return dwc3_runtime_idle(&dwc3->dwc);
+}
+
+static const struct dev_pm_ops dwc3_generic_dev_pm_ops = {
+	SET_SYSTEM_SLEEP_PM_OPS(dwc3_generic_suspend, dwc3_generic_resume)
+	SET_RUNTIME_PM_OPS(dwc3_generic_runtime_suspend, dwc3_generic_runtime_resume,
+			   dwc3_generic_runtime_idle)
+};
+
+static const struct of_device_id dwc3_generic_of_match[] = {
+	{ .compatible = "spacemit,k1-dwc3", },
+	{ /* sentinel */ }
+};
+MODULE_DEVICE_TABLE(of, dwc3_generic_of_match);
+
+static struct platform_driver dwc3_generic_driver = {
+	.probe		= dwc3_generic_probe,
+	.remove		= dwc3_generic_remove,
+	.driver		= {
+		.name	= "dwc3-generic-plat",
+		.of_match_table = dwc3_generic_of_match,
+		.pm	= &dwc3_generic_dev_pm_ops,
+	},
+};
+module_platform_driver(dwc3_generic_driver);
+
+MODULE_LICENSE("GPL");
+MODULE_DESCRIPTION("DesignWare USB3 generic platform driver");

-- 
2.50.0

On Sat, Jul 05, 2025, Ze Huang wrote:
> To support flattened dwc3 dt model and drop the glue layer, introduce the
> `dwc3-generic` driver. This enables direct binding of the DWC3 core driver
> and offers an alternative to the existing glue driver `dwc3-of-simple`.
> 
> Signed-off-by: Ze Huang <huang.ze@linux.dev>
> ---
>  drivers/usb/dwc3/Kconfig             |  11 +++
>  drivers/usb/dwc3/Makefile            |   1 +
>  drivers/usb/dwc3/dwc3-generic-plat.c | 182 +++++++++++++++++++++++++++++++++++
>  3 files changed, 194 insertions(+)
> 
> diff --git a/drivers/usb/dwc3/Kconfig b/drivers/usb/dwc3/Kconfig
> index 310d182e10b50b253d7e5a51674806e6ec442a2a..4925d15084f816d3ff92059b476ebcc799b56b51 100644
> --- a/drivers/usb/dwc3/Kconfig
> +++ b/drivers/usb/dwc3/Kconfig
> @@ -189,4 +189,15 @@ config USB_DWC3_RTK
>  	  or dual-role mode.
>  	  Say 'Y' or 'M' if you have such device.
>  
> +config USB_DWC3_GENERIC_PLAT
> +	tristate "DWC3 Generic Platform Driver"
> +	depends on OF && COMMON_CLK
> +	default USB_DWC3
> +	help
> +	  Support USB3 functionality in simple SoC integrations.
> +	  Currently supports SpacemiT DWC USB3. Platforms using
> +	  dwc3-of-simple can easily switch to dwc3-generic by flattening
> +	  the dwc3 child node in the device tree.
> +	  Say 'Y' or 'M' here if your platform integrates DWC3 in a similar way.
> +
>  endif
> diff --git a/drivers/usb/dwc3/Makefile b/drivers/usb/dwc3/Makefile
> index 830e6c9e5fe073c1f662ce34b6a4a2da34c407a2..96469e48ff9d189cc8d0b65e65424eae2158bcfe 100644
> --- a/drivers/usb/dwc3/Makefile
> +++ b/drivers/usb/dwc3/Makefile
> @@ -57,3 +57,4 @@ obj-$(CONFIG_USB_DWC3_IMX8MP)		+= dwc3-imx8mp.o
>  obj-$(CONFIG_USB_DWC3_XILINX)		+= dwc3-xilinx.o
>  obj-$(CONFIG_USB_DWC3_OCTEON)		+= dwc3-octeon.o
>  obj-$(CONFIG_USB_DWC3_RTK)		+= dwc3-rtk.o
> +obj-$(CONFIG_USB_DWC3_GENERIC_PLAT)	+= dwc3-generic-plat.o
> diff --git a/drivers/usb/dwc3/dwc3-generic-plat.c b/drivers/usb/dwc3/dwc3-generic-plat.c
> new file mode 100644
> index 0000000000000000000000000000000000000000..f251dda60903364d6b326a0904ec9b113e61f5c0
> --- /dev/null
> +++ b/drivers/usb/dwc3/dwc3-generic-plat.c
> @@ -0,0 +1,182 @@
> +// SPDX-License-Identifier: GPL-2.0-only
> +/*
> + * dwc3-generic-plat.c - DesignWare USB3 generic platform driver
> + *
> + * Copyright (C) 2025 Ze Huang <huang.ze@linux.dev>
> + *
> + * Inspired by dwc3-qcom.c and dwc3-of-simple.c
> + */
> +
> +#include <linux/clk.h>
> +#include <linux/platform_device.h>
> +#include <linux/reset.h>
> +#include "glue.h"
> +
> +struct dwc3_generic {
> +	struct device		*dev;
> +	struct dwc3		dwc;
> +	struct clk_bulk_data	*clks;
> +	int			num_clocks;
> +	struct reset_control	*resets;
> +};
> +
> +static void dwc3_generic_reset_control_assert(void *data)
> +{
> +	reset_control_assert(data);
> +}
> +
> +static void dwc3_generic_clk_bulk_disable_unprepare(void *data)
> +{
> +	struct dwc3_generic *dwc3 = data;
> +
> +	clk_bulk_disable_unprepare(dwc3->num_clocks, dwc3->clks);
> +}
> +
> +static int dwc3_generic_probe(struct platform_device *pdev)
> +{
> +	struct dwc3_probe_data probe_data = {};
> +	struct device *dev = &pdev->dev;
> +	struct dwc3_generic *dwc3;
> +	struct resource *res;
> +	int ret;
> +
> +	dwc3 = devm_kzalloc(dev, sizeof(*dwc3), GFP_KERNEL);
> +	if (!dwc3)
> +		return -ENOMEM;
> +
> +	dwc3->dev = dev;
> +
> +	platform_set_drvdata(pdev, dwc3);
> +
> +	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
> +	if (!res) {
> +		dev_err(&pdev->dev, "missing memory resource\n");
> +		return -ENODEV;
> +	}
> +
> +	dwc3->resets = devm_reset_control_array_get_optional_exclusive(dev);
> +	if (IS_ERR(dwc3->resets))
> +		return dev_err_probe(dev, PTR_ERR(dwc3->resets), "failed to get resets\n");
> +
> +	ret = reset_control_assert(dwc3->resets);
> +	if (ret)
> +		return dev_err_probe(dev, ret, "failed to assert resets\n");
> +
> +	ret = devm_add_action_or_reset(dev, dwc3_generic_reset_control_assert, dwc3->resets);
> +	if (ret)
> +		return ret;
> +
> +	usleep_range(10, 1000);
> +
> +	ret = reset_control_deassert(dwc3->resets);
> +	if (ret)
> +		return dev_err_probe(dev, ret, "failed to deassert resets\n");
> +
> +	ret = devm_clk_bulk_get_all(dwc3->dev, &dwc3->clks);
> +	if (ret < 0)
> +		return dev_err_probe(dev, ret, "failed to get clocks\n");
> +
> +	dwc3->num_clocks = ret;
> +
> +	ret = clk_bulk_prepare_enable(dwc3->num_clocks, dwc3->clks);
> +	if (ret)
> +		return dev_err_probe(dev, ret, "failed to enable clocks\n");
> +
> +	ret = devm_add_action_or_reset(dev, dwc3_generic_clk_bulk_disable_unprepare, dwc3);
> +	if (ret)
> +		return ret;
> +
> +	dwc3->dwc.dev = dev;
> +	probe_data.dwc = &dwc3->dwc;
> +	probe_data.res = res;
> +	probe_data.ignore_clocks_and_resets = true;
> +	ret = dwc3_core_probe(&probe_data);
> +	if (ret)
> +		return dev_err_probe(dev, ret, "failed to register DWC3 Core\n");
> +
> +	return 0;
> +}
> +
> +static void dwc3_generic_remove(struct platform_device *pdev)
> +{
> +	struct dwc3_generic *dwc3 = platform_get_drvdata(pdev);
> +
> +	dwc3_core_remove(&dwc3->dwc);
> +}
> +
> +static int dwc3_generic_suspend(struct device *dev)
> +{
> +	struct dwc3_generic *dwc3 = dev_get_drvdata(dev);
> +	int ret;
> +
> +	ret = dwc3_pm_suspend(&dwc3->dwc);
> +	if (ret)
> +		return ret;
> +
> +	clk_bulk_disable_unprepare(dwc3->num_clocks, dwc3->clks);
> +
> +	return 0;
> +}
> +
> +static int dwc3_generic_resume(struct device *dev)
> +{
> +	struct dwc3_generic *dwc3 = dev_get_drvdata(dev);
> +	int ret;
> +
> +	ret = clk_bulk_prepare_enable(dwc3->num_clocks, dwc3->clks);
> +	if (ret)
> +		return ret;
> +
> +	ret = dwc3_pm_resume(&dwc3->dwc);
> +	if (ret)
> +		return ret;
> +
> +	return 0;
> +}
> +
> +static int dwc3_generic_runtime_suspend(struct device *dev)
> +{
> +	struct dwc3_generic *dwc3 = dev_get_drvdata(dev);
> +
> +	return dwc3_runtime_suspend(&dwc3->dwc);
> +}
> +
> +static int dwc3_generic_runtime_resume(struct device *dev)
> +{
> +	struct dwc3_generic *dwc3 = dev_get_drvdata(dev);
> +
> +	return dwc3_runtime_resume(&dwc3->dwc);
> +}
> +
> +static int dwc3_generic_runtime_idle(struct device *dev)
> +{
> +	struct dwc3_generic *dwc3 = dev_get_drvdata(dev);
> +
> +	return dwc3_runtime_idle(&dwc3->dwc);
> +}
> +
> +static const struct dev_pm_ops dwc3_generic_dev_pm_ops = {
> +	SET_SYSTEM_SLEEP_PM_OPS(dwc3_generic_suspend, dwc3_generic_resume)
> +	SET_RUNTIME_PM_OPS(dwc3_generic_runtime_suspend, dwc3_generic_runtime_resume,
> +			   dwc3_generic_runtime_idle)
> +};
> +
> +static const struct of_device_id dwc3_generic_of_match[] = {
> +	{ .compatible = "spacemit,k1-dwc3", },
> +	{ /* sentinel */ }
> +};
> +MODULE_DEVICE_TABLE(of, dwc3_generic_of_match);
> +
> +static struct platform_driver dwc3_generic_driver = {
> +	.probe		= dwc3_generic_probe,
> +	.remove		= dwc3_generic_remove,
> +	.driver		= {
> +		.name	= "dwc3-generic-plat",
> +		.of_match_table = dwc3_generic_of_match,
> +		.pm	= &dwc3_generic_dev_pm_ops,

You're still not using the new pm_ptr()/pm_sleep_ptr. The kernel build
bot will complain about the maybe unused functions.

BR,
Thinh

On Fri, Jul 11, 2025 at 11:37:32PM +0000, Thinh Nguyen wrote:
> On Sat, Jul 05, 2025, Ze Huang wrote:
> > To support flattened dwc3 dt model and drop the glue layer, introduce the
> > `dwc3-generic` driver. This enables direct binding of the DWC3 core driver
> > and offers an alternative to the existing glue driver `dwc3-of-simple`.
> > 
> > Signed-off-by: Ze Huang <huang.ze@linux.dev>
> > ---
> >  drivers/usb/dwc3/Kconfig             |  11 +++
> >  drivers/usb/dwc3/Makefile            |   1 +
> >  drivers/usb/dwc3/dwc3-generic-plat.c | 182 +++++++++++++++++++++++++++++++++++
> >  3 files changed, 194 insertions(+)
> > 

[...]

> > +static const struct dev_pm_ops dwc3_generic_dev_pm_ops = {
> > +	SET_SYSTEM_SLEEP_PM_OPS(dwc3_generic_suspend, dwc3_generic_resume)
> > +	SET_RUNTIME_PM_OPS(dwc3_generic_runtime_suspend, dwc3_generic_runtime_resume,
> > +			   dwc3_generic_runtime_idle)
> > +};
> > +
> > +static const struct of_device_id dwc3_generic_of_match[] = {
> > +	{ .compatible = "spacemit,k1-dwc3", },
> > +	{ /* sentinel */ }
> > +};
> > +MODULE_DEVICE_TABLE(of, dwc3_generic_of_match);
> > +
> > +static struct platform_driver dwc3_generic_driver = {
> > +	.probe		= dwc3_generic_probe,
> > +	.remove		= dwc3_generic_remove,
> > +	.driver		= {
> > +		.name	= "dwc3-generic-plat",
> > +		.of_match_table = dwc3_generic_of_match,
> > +		.pm	= &dwc3_generic_dev_pm_ops,
> 
> You're still not using the new pm_ptr()/pm_sleep_ptr. The kernel build
> bot will complain about the maybe unused functions.

Thanks for your patience.

I found they are caused by using SET_RUNTIME_PM_OPS and SET_SYSTEM_SLEEP_PM_OPS macros.

I'll replace them with new RUNTIME_PM_OPS/SYSTEM_SLEEP_PM_OPS and wrap the
dwc3_generic_dev_pm_ops with pm_ptr()

> 
> BR,
> Thinh

Hi Ze,

kernel test robot noticed the following build warnings:

[auto build test WARNING on d9946fe286439c2aeaa7953b8c316efe5b83d515]

url:    https://github.com/intel-lab-lkp/linux/commits/Ze-Huang/dt-bindings-usb-dwc3-add-support-for-SpacemiT-K1/20250705-210419
base:   d9946fe286439c2aeaa7953b8c316efe5b83d515
patch link:    https://lore.kernel.org/r/20250705-dwc3_generic-v5-2-9dbc53ea53d2%40linux.dev
patch subject: [PATCH v5 2/2] usb: dwc3: add generic driver to support flattened
config: arc-randconfig-001-20250706 (https://download.01.org/0day-ci/archive/20250706/202507060206.iiBP6CQi-lkp@intel.com/config)
compiler: arc-linux-gcc (GCC) 8.5.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20250706/202507060206.iiBP6CQi-lkp@intel.com/reproduce)

If you fix the issue in a separate patch/commit (i.e. not just a new version of
the same patch/commit), kindly add following tags
| Reported-by: kernel test robot <lkp@intel.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202507060206.iiBP6CQi-lkp@intel.com/

All warnings (new ones prefixed by >>):

>> drivers/usb/dwc3/dwc3-generic-plat.c:151:12: warning: 'dwc3_generic_runtime_idle' defined but not used [-Wunused-function]
    static int dwc3_generic_runtime_idle(struct device *dev)
               ^~~~~~~~~~~~~~~~~~~~~~~~~
>> drivers/usb/dwc3/dwc3-generic-plat.c:144:12: warning: 'dwc3_generic_runtime_resume' defined but not used [-Wunused-function]
    static int dwc3_generic_runtime_resume(struct device *dev)
               ^~~~~~~~~~~~~~~~~~~~~~~~~~~
>> drivers/usb/dwc3/dwc3-generic-plat.c:137:12: warning: 'dwc3_generic_runtime_suspend' defined but not used [-Wunused-function]
    static int dwc3_generic_runtime_suspend(struct device *dev)
               ^~~~~~~~~~~~~~~~~~~~~~~~~~~~
>> drivers/usb/dwc3/dwc3-generic-plat.c:121:12: warning: 'dwc3_generic_resume' defined but not used [-Wunused-function]
    static int dwc3_generic_resume(struct device *dev)
               ^~~~~~~~~~~~~~~~~~~
>> drivers/usb/dwc3/dwc3-generic-plat.c:107:12: warning: 'dwc3_generic_suspend' defined but not used [-Wunused-function]
    static int dwc3_generic_suspend(struct device *dev)
               ^~~~~~~~~~~~~~~~~~~~


vim +/dwc3_generic_runtime_idle +151 drivers/usb/dwc3/dwc3-generic-plat.c

   106	
 > 107	static int dwc3_generic_suspend(struct device *dev)
   108	{
   109		struct dwc3_generic *dwc3 = dev_get_drvdata(dev);
   110		int ret;
   111	
   112		ret = dwc3_pm_suspend(&dwc3->dwc);
   113		if (ret)
   114			return ret;
   115	
   116		clk_bulk_disable_unprepare(dwc3->num_clocks, dwc3->clks);
   117	
   118		return 0;
   119	}
   120	
 > 121	static int dwc3_generic_resume(struct device *dev)
   122	{
   123		struct dwc3_generic *dwc3 = dev_get_drvdata(dev);
   124		int ret;
   125	
   126		ret = clk_bulk_prepare_enable(dwc3->num_clocks, dwc3->clks);
   127		if (ret)
   128			return ret;
   129	
   130		ret = dwc3_pm_resume(&dwc3->dwc);
   131		if (ret)
   132			return ret;
   133	
   134		return 0;
   135	}
   136	
 > 137	static int dwc3_generic_runtime_suspend(struct device *dev)
   138	{
   139		struct dwc3_generic *dwc3 = dev_get_drvdata(dev);
   140	
   141		return dwc3_runtime_suspend(&dwc3->dwc);
   142	}
   143	
 > 144	static int dwc3_generic_runtime_resume(struct device *dev)
   145	{
   146		struct dwc3_generic *dwc3 = dev_get_drvdata(dev);
   147	
   148		return dwc3_runtime_resume(&dwc3->dwc);
   149	}
   150	
 > 151	static int dwc3_generic_runtime_idle(struct device *dev)
   152	{
   153		struct dwc3_generic *dwc3 = dev_get_drvdata(dev);
   154	
   155		return dwc3_runtime_idle(&dwc3->dwc);
   156	}
   157	

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0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki