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Message-ID: <a664ad04-561d-5060-6e69-10f79c1398d0@starfivetech.com>
Date:   Fri, 7 Jul 2023 15:34:40 +0800
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Subject: Re: [PATCH] watchdog: starfive: Remove #ifdef guards for PM related
 functions
Content-Language: en-US
To:     Paul Cercueil <paul@crapouillou.net>
CC:     Samin Guo <samin.guo@starfivetech.com>,
        Wim Van Sebroeck <wim@linux-watchdog.org>,
        Guenter Roeck <linux@roeck-us.net>,
        <linux-watchdog@vger.kernel.org>, <linux-kernel@vger.kernel.org>
References: <20230706082928.10869-1-paul@crapouillou.net>
From:   Xingyu Wu <xingyu.wu@starfivetech.com>
In-Reply-To: <20230706082928.10869-1-paul@crapouillou.net>
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On 2023/7/6 16:29, Paul Cercueil wrote:
> Use the new PM macros for the suspend and resume functions to be
> automatically dropped by the compiler when CONFIG_PM or
> CONFIG_PM_SLEEP are disabled, without having to use #ifdef guards.
> 
> This has the advantage of always compiling these functions in,
> independently of any Kconfig option. Thanks to that, bugs and other
> regressions are subsequently easier to catch.
> 
> Signed-off-by: Paul Cercueil <paul@crapouillou.net>
> ---
>  drivers/watchdog/starfive-wdt.c | 10 +++-------
>  1 file changed, 3 insertions(+), 7 deletions(-)
> 
> diff --git a/drivers/watchdog/starfive-wdt.c b/drivers/watchdog/starfive-wdt.c
> index 8058fca4d05d..7c8a1c5e75be 100644
> --- a/drivers/watchdog/starfive-wdt.c
> +++ b/drivers/watchdog/starfive-wdt.c
> @@ -526,7 +526,6 @@ static void starfive_wdt_shutdown(struct platform_device *pdev)
>  	starfive_wdt_pm_stop(&wdt->wdd);
>  }
>  
> -#ifdef CONFIG_PM_SLEEP
>  static int starfive_wdt_suspend(struct device *dev)
>  {
>  	struct starfive_wdt *wdt = dev_get_drvdata(dev);
> @@ -556,9 +555,7 @@ static int starfive_wdt_resume(struct device *dev)
>  
>  	return starfive_wdt_start(wdt);
>  }
> -#endif /* CONFIG_PM_SLEEP */
>  
> -#ifdef CONFIG_PM
>  static int starfive_wdt_runtime_suspend(struct device *dev)
>  {
>  	struct starfive_wdt *wdt = dev_get_drvdata(dev);
> @@ -574,11 +571,10 @@ static int starfive_wdt_runtime_resume(struct device *dev)
>  
>  	return starfive_wdt_enable_clock(wdt);
>  }
> -#endif /* CONFIG_PM */
>  
>  static const struct dev_pm_ops starfive_wdt_pm_ops = {
> -	SET_RUNTIME_PM_OPS(starfive_wdt_runtime_suspend, starfive_wdt_runtime_resume, NULL)
> -	SET_SYSTEM_SLEEP_PM_OPS(starfive_wdt_suspend, starfive_wdt_resume)
> +	RUNTIME_PM_OPS(starfive_wdt_runtime_suspend, starfive_wdt_runtime_resume, NULL)
> +	SYSTEM_SLEEP_PM_OPS(starfive_wdt_suspend, starfive_wdt_resume)
>  };
>  
>  static const struct of_device_id starfive_wdt_match[] = {
> @@ -594,7 +590,7 @@ static struct platform_driver starfive_wdt_driver = {
>  	.shutdown = starfive_wdt_shutdown,
>  	.driver = {
>  		.name = "starfive-wdt",
> -		.pm = &starfive_wdt_pm_ops,
> +		.pm = pm_ptr(&starfive_wdt_pm_ops),
>  		.of_match_table = starfive_wdt_match,
>  	},
>  };

Great, Thank you for the improvements.

Best regards,
Xingyu Wu