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usb: ehci-exynos: Use DEFINE_SIMPLE_DEV_PM_OPS for PM functions

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This macro has the advantage over SIMPLE_DEV_PM_OPS that we don't have to
care about when the functions are actually used.

Also make use of pm_ptr() to discard all PM related stuff if CONFIG_PM
isn't enabled.

Signed-off-by: Anand Moon <linux.amoon@gmail.com>
Link: https://lore.kernel.org/r/20240412142317.5191-3-linux.amoon@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Anand Moon 2024-04-12 19:52:51 +05:30 • committed by Greg Kroah-Hartman
parent 1ac579a4bf
commit 3f26e2b07a
1 changed files with 3 additions and 10 deletions
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13
drivers/usb/host/ehci-exynos.c
View file

@ -237,7 +237,6 @@ static void exynos_ehci_remove(struct platform_device *pdev)
usb_put_hcd(hcd);
}
#ifdef CONFIG_PM
static int exynos_ehci_suspend(struct device *dev)
{
struct usb_hcd *hcd = dev_get_drvdata(dev);
@ -280,15 +279,9 @@ static int exynos_ehci_resume(struct device *dev)
ehci_resume(hcd, false);
return 0;
}
#else
#define exynos_ehci_suspend NULL
#define exynos_ehci_resume NULL
#endif
static const struct dev_pm_ops exynos_ehci_pm_ops = {
.suspend = exynos_ehci_suspend,
.resume = exynos_ehci_resume,
};
static DEFINE_SIMPLE_DEV_PM_OPS(exynos_ehci_pm_ops,
exynos_ehci_suspend, exynos_ehci_resume);
#ifdef CONFIG_OF
static const struct of_device_id exynos_ehci_match[] = {
@ -304,7 +297,7 @@ static struct platform_driver exynos_ehci_driver = {
.shutdown = usb_hcd_platform_shutdown,
.driver = {
.name = "exynos-ehci",
.pm = &exynos_ehci_pm_ops,
.pm = pm_ptr(&exynos_ehci_pm_ops),
.of_match_table = of_match_ptr(exynos_ehci_match),
}
};