linux-kernel - Re: [PATCH v1 1/3] pm: Introduce DEFINE_NOIRQ_DEV_PM

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Message-ID: <CAJZ5v0j3Dv5DJh4oN+i2qXi=zU8PhGeMsUY2v-mZU5tKJWmsxg@mail.gmail.com>
Date:   Fri, 30 Dec 2022 19:43:04 +0100
From:   "Rafael J. Wysocki" <rafael@...nel.org>
To:     Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
Cc:     Mika Westerberg <mika.westerberg@...ux.intel.com>,
        "Rafael J. Wysocki" <rafael.j.wysocki@...el.com>,
        Paul Cercueil <paul@...pouillou.net>,
        linux-gpio@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-pm@...r.kernel.org, Andy Shevchenko <andy@...nel.org>,
        Linus Walleij <linus.walleij@...aro.org>,
        "Rafael J. Wysocki" <rafael@...nel.org>,
        Len Brown <len.brown@...el.com>, Pavel Machek <pavel@....cz>
Subject: Re: [PATCH v1 1/3] pm: Introduce DEFINE_NOIRQ_DEV_PM_OPS() helper

On Thu, Dec 29, 2022 at 1:59 PM Andy Shevchenko
<andriy.shevchenko@...ux.intel.com> wrote:
>
> There are a few drivers and might be more in the future that
> open code the functionality of proposed DEFINE_NOIRQ_DEV_PM_OPS()
> helper. From now on they may switch to the new helper and save
> a few lines of code.
>
> Signed-off-by: Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
> ---
>  include/linux/pm.h | 5 +++++
>  1 file changed, 5 insertions(+)
>
> diff --git a/include/linux/pm.h b/include/linux/pm.h
> index 93cd34f00822..eba96822b1d9 100644
> --- a/include/linux/pm.h
> +++ b/include/linux/pm.h
> @@ -444,6 +444,11 @@ const struct dev_pm_ops __maybe_unused name = { \
>         SET_RUNTIME_PM_OPS(suspend_fn, resume_fn, idle_fn) \
>  }
>
> +#define DEFINE_NOIRQ_DEV_PM_OPS(name, suspend_fn, resume_fn) \
> +const struct dev_pm_ops name = { \
> +       NOIRQ_SYSTEM_SLEEP_PM_OPS(suspend_fn, resume_fn) \
> +}

There is NOIRQ_SYSTEM_SLEEP_PM_OPS(), so why is the above needed in addition?

> +
>  #define pm_ptr(_ptr) PTR_IF(IS_ENABLED(CONFIG_PM), (_ptr))
>  #define pm_sleep_ptr(_ptr) PTR_IF(IS_ENABLED(CONFIG_PM_SLEEP), (_ptr))
>
> --