Re: [PATCH v2 01/12] PM: sleep: wakeirq: Introduce device-managed variant of dev_pm_set_wake_irq

[Rafael J. Wysocki]

On Fri, Jan 3, 2025 at 9:42 AM Peng Fan (OSS) <peng.fan@xxxxxxxxxxx> wrote:
>
> From: Peng Fan <peng.fan@xxxxxxx>
>
> Add device-managed variant of dev_pm_set_wake_irq which automatically
> clear the wake irq on device destruction to simplify error handling
> and resource management in drivers.
>
> Signed-off-by: Peng Fan <peng.fan@xxxxxxx>
> ---
>  drivers/base/power/wakeirq.c | 26 ++++++++++++++++++++++++++
>  include/linux/pm_wakeirq.h   |  6 ++++++
>  2 files changed, 32 insertions(+)
>
> diff --git a/drivers/base/power/wakeirq.c b/drivers/base/power/wakeirq.c
> index 5a5a9e978e85f3fc9d89cb7d43527dc1dd42a9b1..8aa28c08b2891f3af490175362cc1a759069bd50 100644
> --- a/drivers/base/power/wakeirq.c
> +++ b/drivers/base/power/wakeirq.c
> @@ -103,6 +103,32 @@ void dev_pm_clear_wake_irq(struct device *dev)
>  }
>  EXPORT_SYMBOL_GPL(dev_pm_clear_wake_irq);
>
> +static void devm_pm_clear_wake_irq(void *dev)
> +{
> +       dev_pm_clear_wake_irq(dev);
> +}
> +
> +/**
> + * devm_pm_set_wake_irq - device-managed variant of dev_pm_set_wake_irq
> + * @dev: Device entry
> + * @irq: Device IO interrupt
> + *
> + *
> + * Attach a device IO interrupt as a wake IRQ, same with dev_pm_set_wake_irq,
> + * but the device will be auto clear wake capability on driver detach.
> + */
> +int devm_pm_set_wake_irq(struct device *dev, int irq)
> +{
> +       int ret;
> +
> +       ret = dev_pm_set_wake_irq(dev, irq);
> +       if (ret)
> +               return ret;
> +
> +       return devm_add_action_or_reset(dev, devm_pm_clear_wake_irq, dev);
> +}
> +EXPORT_SYMBOL_GPL(devm_pm_set_wake_irq);
> +
>  /**
>   * handle_threaded_wake_irq - Handler for dedicated wake-up interrupts
>   * @irq: Device specific dedicated wake-up interrupt
> diff --git a/include/linux/pm_wakeirq.h b/include/linux/pm_wakeirq.h
> index d9642c6cf85211af603ce39e280a5b4de6617ee5..25b63ed51b765c2c6919f259668a12675330835e 100644
> --- a/include/linux/pm_wakeirq.h
> +++ b/include/linux/pm_wakeirq.h
> @@ -10,6 +10,7 @@ extern int dev_pm_set_wake_irq(struct device *dev, int irq);
>  extern int dev_pm_set_dedicated_wake_irq(struct device *dev, int irq);
>  extern int dev_pm_set_dedicated_wake_irq_reverse(struct device *dev, int irq);
>  extern void dev_pm_clear_wake_irq(struct device *dev);
> +extern int devm_pm_set_wake_irq(struct device *dev, int irq);
>
>  #else  /* !CONFIG_PM */
>
> @@ -32,5 +33,10 @@ static inline void dev_pm_clear_wake_irq(struct device *dev)
>  {
>  }
>
> +static inline int devm_pm_set_wake_irq(struct device *dev, int irq)
> +{
> +       return 0;
> +}
> +
>  #endif /* CONFIG_PM */
>  #endif /* _LINUX_PM_WAKEIRQ_H */
>
> --

I can apply this patch for 6.14, but the rest of the series will need
to be picked up by the respective driver maintainers.

I hope this works for you?