Re: [PATCH] ACPI: AC: use DEFINE_SIMPLE_DEV_PM_OPS

[Rafael J. Wysocki (Intel)]

On Wed, Sep 9, 2026 at 4:44 PM Rafael J. Wysocki (Intel)
<rafael@xxxxxxxxxx> wrote:
>
> On Thu, Aug 20, 2026 at 5:12 AM Triet Hoang <triet.hoang.dev@xxxxxxxxx> wrote:
> >
> > Convert the deprecated SIMPLE_DEV_PM_OPS
> > to DEFINE_SIMPLE_DEV_PM_OPS
> >
> > Also use pm_sleep_ptr() when assigning the ops to the driver.
> > This allows the removal of the ifdef CONFIG_PM_SLEEP.
> >
> > Signed-off-by: Triet Hoang <triet.hoang.dev@xxxxxxxxx>
> > ---
> >  drivers/acpi/ac.c | 6 ++----
> >  1 file changed, 2 insertions(+), 4 deletions(-)
> >
> > diff --git a/drivers/acpi/ac.c b/drivers/acpi/ac.c
> > index f19d6dd43473..eef0c8e32d73 100644
> > --- a/drivers/acpi/ac.c
> > +++ b/drivers/acpi/ac.c
> > @@ -239,7 +239,6 @@ static int acpi_ac_probe(struct platform_device *pdev)
> >         return 0;
> >  }
> >
> > -#ifdef CONFIG_PM_SLEEP
> >  static int acpi_ac_resume(struct device *dev)
> >  {
> >         struct acpi_ac *ac = dev_get_drvdata(dev);
> > @@ -253,9 +252,8 @@ static int acpi_ac_resume(struct device *dev)
> >
> >         return 0;
> >  }
> > -#endif
>
> And the function above is going to be unused when CONFIG_PM_SLEEP is
> unset, causing the compiler to complain AFAICS.

Scratch this, but you should mention in the changelog that the file is
going to contain dead code for CONFIG_PM_SLEEP after this change.

And I'm not really sure if I like that.

> > -static SIMPLE_DEV_PM_OPS(acpi_ac_pm, NULL, acpi_ac_resume);
> > +static DEFINE_SIMPLE_DEV_PM_OPS(acpi_ac_pm, NULL, acpi_ac_resume);
> >
> >  static void acpi_ac_remove(struct platform_device *pdev)
> >  {
> > @@ -270,7 +268,7 @@ static struct platform_driver acpi_ac_driver = {
> >         .driver = {
> >                 .name = "ac",
> >                 .acpi_match_table = ac_device_ids,
> > -               .pm = &acpi_ac_pm,
> > +               .pm = pm_sleep_ptr(&acpi_ac_pm),
> >         },
> >  };
> >
> > --
> > 2.53.0
> >