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Subject[PATCH 20/20] usb/gadget/udc: snps: Use pm_ptr() macro
Date
Use the newly introduced pm_ptr() macro, and mark the suspend/resume
functions __maybe_unused. These functions can then be moved outside the
CONFIG_PM_SUSPEND block, and the compiler can then process them and
detect build failures independently of the config. If unused, they will
simply be discarded by the compiler.

Signed-off-by: Paul Cercueil <paul@crapouillou.net>
---
drivers/usb/gadget/udc/snps_udc_plat.c | 16 +++++-----------
1 file changed, 5 insertions(+), 11 deletions(-)

diff --git a/drivers/usb/gadget/udc/snps_udc_plat.c b/drivers/usb/gadget/udc/snps_udc_plat.c
index 32f1d3e90c26..6b8f08287c84 100644
--- a/drivers/usb/gadget/udc/snps_udc_plat.c
+++ b/drivers/usb/gadget/udc/snps_udc_plat.c
@@ -257,8 +257,7 @@ static int udc_plat_remove(struct platform_device *pdev)
return 0;
}

-#ifdef CONFIG_PM_SLEEP
-static int udc_plat_suspend(struct device *dev)
+static int __maybe_unused udc_plat_suspend(struct device *dev)
{
struct udc *udc;

@@ -275,7 +274,7 @@ static int udc_plat_suspend(struct device *dev)
return 0;
}

-static int udc_plat_resume(struct device *dev)
+static int __maybe_unused udc_plat_resume(struct device *dev)
{
struct udc *udc;
int ret;
@@ -302,11 +301,8 @@ static int udc_plat_resume(struct device *dev)

return 0;
}
-static const struct dev_pm_ops udc_plat_pm_ops = {
- .suspend = udc_plat_suspend,
- .resume = udc_plat_resume,
-};
-#endif
+
+static SIMPLE_DEV_PM_OPS(plat_pm_ops, udc_plat_suspend, udc_plat_resume);

#if defined(CONFIG_OF)
static const struct of_device_id of_udc_match[] = {
@@ -324,9 +320,7 @@ static struct platform_driver udc_plat_driver = {
.driver = {
.name = "snps-udc-plat",
.of_match_table = of_match_ptr(of_udc_match),
-#ifdef CONFIG_PM_SLEEP
- .pm = &udc_plat_pm_ops,
-#endif
+ .pm = pm_ptr(&udc_plat_pm_ops),
},
};
module_platform_driver(udc_plat_driver);
--
2.28.0
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