Re: [PATCH v2 07/10] pinctrl: mediatek: Switch to use DEFINE_NOIRQ_DEV_PM_OPS() helper

[Paul Cercueil]

Hi Andy,


Le lundi 17 juillet 2023 à 20:28 +0300, Andy Shevchenko a écrit :
> Since pm.h provides a helper for system no-IRQ PM callbacks,
> switch the driver to use it instead of open coded variant.
> 
> Signed-off-by: Andy Shevchenko <andriy.shevchenko@xxxxxxxxxxxxxxx>
> ---
>  drivers/pinctrl/mediatek/pinctrl-mtk-common.c | 5 +----
>  drivers/pinctrl/mediatek/pinctrl-paris.c      | 9 +++------
>  2 files changed, 4 insertions(+), 10 deletions(-)
> 
> diff --git a/drivers/pinctrl/mediatek/pinctrl-mtk-common.c
> b/drivers/pinctrl/mediatek/pinctrl-mtk-common.c
> index 665dec419e7c..2bf5082d3aa9 100644
> --- a/drivers/pinctrl/mediatek/pinctrl-mtk-common.c
> +++ b/drivers/pinctrl/mediatek/pinctrl-mtk-common.c
> @@ -922,10 +922,7 @@ static int mtk_eint_resume(struct device
> *device)
>         return mtk_eint_do_resume(pctl->eint);
>  }
>  
> -const struct dev_pm_ops mtk_eint_pm_ops = {
> -       .suspend_noirq = mtk_eint_suspend,
> -       .resume_noirq = mtk_eint_resume,
> -};
> +DEFINE_NOIRQ_DEV_PM_OPS(mtk_eint_pm_ops, mtk_eint_suspend,
> mtk_eint_resume);
>  
>  static int mtk_pctrl_build_state(struct platform_device *pdev)
>  {
> diff --git a/drivers/pinctrl/mediatek/pinctrl-paris.c
> b/drivers/pinctrl/mediatek/pinctrl-paris.c
> index 33d6c3fb7908..b1cbd5bafa2e 100644
> --- a/drivers/pinctrl/mediatek/pinctrl-paris.c
> +++ b/drivers/pinctrl/mediatek/pinctrl-paris.c
> @@ -1119,24 +1119,21 @@ int mtk_paris_pinctrl_probe(struct
> platform_device *pdev)
>  }
>  EXPORT_SYMBOL_GPL(mtk_paris_pinctrl_probe);
>  
> -static int mtk_paris_pinctrl_suspend(struct device *device)
> +static int mtk_paris_suspend(struct device *device)
>  {
>         struct mtk_pinctrl *pctl = dev_get_drvdata(device);
>  
>         return mtk_eint_do_suspend(pctl->eint);
>  }
>  
> -static int mtk_paris_pinctrl_resume(struct device *device)
> +static int mtk_paris_resume(struct device *device)
>  {
>         struct mtk_pinctrl *pctl = dev_get_drvdata(device);
>  
>         return mtk_eint_do_resume(pctl->eint);
>  }
>  
> -const struct dev_pm_ops mtk_paris_pinctrl_pm_ops = {
> -       .suspend_noirq = mtk_paris_pinctrl_suspend,
> -       .resume_noirq = mtk_paris_pinctrl_resume,
> -};
> +DEFINE_NOIRQ_DEV_PM_OPS(mtk_paris_pinctrl_pm_ops, mtk_paris_suspend,
> mtk_paris_resume);

It's a bit more work, but I think you should use EXPORT_GPL_DEV_PM_OPS
(or even better, EXPORT_NS_GPL_DEV_PM_OPS) so that the dev_pm_ops is
conditionally exported. All callers would have to be updated to use
pm_ptr().

Cheers,
-Paul

>  
>  MODULE_LICENSE("GPL v2");
>  MODULE_DESCRIPTION("MediaTek Pinctrl Common Driver V2 Paris");