[PATCH v3] usb: dwc3: add CONFIG_PM_SLEEP to suspend/resume functions

[Jingoo Han]

Add CONFIG_PM_SLEEP to suspend/resume functions to fix the following
build warning when CONFIG_PM_SLEEP is not selected. This is because
sleep PM callbacks defined by SET_SYSTEM_SLEEP_PM_OPS are only used
when the CONFIG_PM_SLEEP is enabled. Unnecessary CONFIG_PM ifdefs
are removed.

drivers/usb/dwc3/core.c:682:12: warning: 'dwc3_suspend' defined but not used 
[-Wunused-function]
drivers/usb/dwc3/core.c:709:12: warning: 'dwc3_resume' defined but not used 
[-Wunused-function]
drivers/usb/dwc3/dwc3-omap.c:430:12: warning: 'dwc3_omap_suspend' defined but 
not used [-Wunused-function]
drivers/usb/dwc3/dwc3-omap.c:440:12: warning: 'dwc3_omap_resume' defined but 
not used [-Wunused-function]
drivers/usb/dwc3/dwc3-exynos.c:185:12: warning: 'dwc3_exynos_suspend' defined 
but not used [-Wunused-function]
drivers/usb/dwc3/dwc3-exynos.c:194:12: warning: 'dwc3_exynos_resume' defined 
but not used [-Wunused-function]

Signed-off-by: Jingoo Han <jg1....@samsung.com>
---
 drivers/usb/dwc3/core.c        |    2 +-
 drivers/usb/dwc3/dwc3-exynos.c |    4 ++--
 drivers/usb/dwc3/dwc3-omap.c   |    4 ++--
 3 files changed, 5 insertions(+), 5 deletions(-)

diff --git a/drivers/usb/dwc3/core.c b/drivers/usb/dwc3/core.c
index e2325ad..c35d49d 100644
--- a/drivers/usb/dwc3/core.c
+++ b/drivers/usb/dwc3/core.c
@@ -634,7 +634,7 @@ static int dwc3_remove(struct platform_device *pdev)
        return 0;
 }
 
-#ifdef CONFIG_PM
+#ifdef CONFIG_PM_SLEEP
 static int dwc3_prepare(struct device *dev)
 {
        struct dwc3     *dwc = dev_get_drvdata(dev);
diff --git a/drivers/usb/dwc3/dwc3-exynos.c b/drivers/usb/dwc3/dwc3-exynos.c
index 1ea7bd8..a8afe6e 100644
--- a/drivers/usb/dwc3/dwc3-exynos.c
+++ b/drivers/usb/dwc3/dwc3-exynos.c
@@ -181,7 +181,7 @@ static const struct of_device_id exynos_dwc3_match[] = {
 MODULE_DEVICE_TABLE(of, exynos_dwc3_match);
 #endif
 
-#ifdef CONFIG_PM
+#ifdef CONFIG_PM_SLEEP
 static int dwc3_exynos_suspend(struct device *dev)
 {
        struct dwc3_exynos *exynos = dev_get_drvdata(dev);
@@ -212,7 +212,7 @@ static const struct dev_pm_ops dwc3_exynos_dev_pm_ops = {
 #define DEV_PM_OPS     (&dwc3_exynos_dev_pm_ops)
 #else
 #define DEV_PM_OPS     NULL
-#endif /* CONFIG_PM */
+#endif /* CONFIG_PM_SLEEP */
 
 static struct platform_driver dwc3_exynos_driver = {
        .probe          = dwc3_exynos_probe,
diff --git a/drivers/usb/dwc3/dwc3-omap.c b/drivers/usb/dwc3/dwc3-omap.c
index 6de734f..34638b9 100644
--- a/drivers/usb/dwc3/dwc3-omap.c
+++ b/drivers/usb/dwc3/dwc3-omap.c
@@ -410,7 +410,7 @@ static const struct of_device_id of_dwc3_match[] = {
 };
 MODULE_DEVICE_TABLE(of, of_dwc3_match);
 
-#ifdef CONFIG_PM
+#ifdef CONFIG_PM_SLEEP
 static int dwc3_omap_prepare(struct device *dev)
 {
        struct dwc3_omap        *omap = dev_get_drvdata(dev);
@@ -461,7 +461,7 @@ static const struct dev_pm_ops dwc3_omap_dev_pm_ops = {
 #define DEV_PM_OPS     (&dwc3_omap_dev_pm_ops)
 #else
 #define DEV_PM_OPS     NULL
-#endif /* CONFIG_PM */
+#endif /* CONFIG_PM_SLEEP */
 
 static struct platform_driver dwc3_omap_driver = {
        .probe          = dwc3_omap_probe,
-- 
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