diff mbox series

[v2,2/6] usb: ehci-exynos: Switch from CONFIG_PM guards to pm_ptr()

Message ID 20240404071350.4242-3-linux.amoon@gmail.com (mailing list archive)
State New
Headers show
Series [v2,1/6] usb: ehci-exynos: Use devm_clk_get_enabled() helpers | expand

Commit Message

Anand Moon April 4, 2024, 7:13 a.m. UTC
Use the new PM macros for the suspend and resume functions to be
automatically dropped by the compiler when CONFIG_PM are disabled,
without having to use #ifdef guards. If CONFIG_PM unused,
they will simply be discarded by the compiler.

Signed-off-by: Anand Moon <linux.amoon@gmail.com>
---
v2: add __maybe_unused to suspend/resume functions in case CONFIG_PM is
disabled.
    dropped RUNTIME_PM_OPS
---
 drivers/usb/host/ehci-exynos.c | 11 +++--------
 1 file changed, 3 insertions(+), 8 deletions(-)

Comments

Alan Stern April 4, 2024, 6:26 p.m. UTC | #1
On Thu, Apr 04, 2024 at 12:43:18PM +0530, Anand Moon wrote:
> Use the new PM macros for the suspend and resume functions to be
> automatically dropped by the compiler when CONFIG_PM are disabled,
> without having to use #ifdef guards. If CONFIG_PM unused,
> they will simply be discarded by the compiler.
> 
> Signed-off-by: Anand Moon <linux.amoon@gmail.com>
> ---
> v2: add __maybe_unused to suspend/resume functions in case CONFIG_PM is
> disabled.
>     dropped RUNTIME_PM_OPS
> ---

Acked-by: Alan Stern <stern@rowland.harvard.edu>

>  drivers/usb/host/ehci-exynos.c | 11 +++--------
>  1 file changed, 3 insertions(+), 8 deletions(-)
> 
> diff --git a/drivers/usb/host/ehci-exynos.c b/drivers/usb/host/ehci-exynos.c
> index f00bfd0b13dc..4cfde1af32be 100644
> --- a/drivers/usb/host/ehci-exynos.c
> +++ b/drivers/usb/host/ehci-exynos.c
> @@ -236,8 +236,7 @@ static void exynos_ehci_remove(struct platform_device *pdev)
>  	usb_put_hcd(hcd);
>  }
>  
> -#ifdef CONFIG_PM
> -static int exynos_ehci_suspend(struct device *dev)
> +static int __maybe_unused exynos_ehci_suspend(struct device *dev)
>  {
>  	struct usb_hcd *hcd = dev_get_drvdata(dev);
>  	struct exynos_ehci_hcd *exynos_ehci = to_exynos_ehci(hcd);
> @@ -256,7 +255,7 @@ static int exynos_ehci_suspend(struct device *dev)
>  	return rc;
>  }
>  
> -static int exynos_ehci_resume(struct device *dev)
> +static int __maybe_unused exynos_ehci_resume(struct device *dev)
>  {
>  	struct usb_hcd *hcd = dev_get_drvdata(dev);
>  	struct exynos_ehci_hcd *exynos_ehci = to_exynos_ehci(hcd);
> @@ -279,10 +278,6 @@ 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,
> @@ -303,7 +298,7 @@ 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),
>  	}
>  };
> -- 
> 2.44.0
>
diff mbox series

Patch

diff --git a/drivers/usb/host/ehci-exynos.c b/drivers/usb/host/ehci-exynos.c
index f00bfd0b13dc..4cfde1af32be 100644
--- a/drivers/usb/host/ehci-exynos.c
+++ b/drivers/usb/host/ehci-exynos.c
@@ -236,8 +236,7 @@  static void exynos_ehci_remove(struct platform_device *pdev)
 	usb_put_hcd(hcd);
 }
 
-#ifdef CONFIG_PM
-static int exynos_ehci_suspend(struct device *dev)
+static int __maybe_unused exynos_ehci_suspend(struct device *dev)
 {
 	struct usb_hcd *hcd = dev_get_drvdata(dev);
 	struct exynos_ehci_hcd *exynos_ehci = to_exynos_ehci(hcd);
@@ -256,7 +255,7 @@  static int exynos_ehci_suspend(struct device *dev)
 	return rc;
 }
 
-static int exynos_ehci_resume(struct device *dev)
+static int __maybe_unused exynos_ehci_resume(struct device *dev)
 {
 	struct usb_hcd *hcd = dev_get_drvdata(dev);
 	struct exynos_ehci_hcd *exynos_ehci = to_exynos_ehci(hcd);
@@ -279,10 +278,6 @@  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,
@@ -303,7 +298,7 @@  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),
 	}
 };