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Sender: Guenter Roeck <groeck7@gmail.com>
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Date: Thu, 1 Feb 2024 05:36:53 -0800
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Subject: Re: [PATCH v2 02/11] watchdog: rzg2l_wdt: Select PM
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To: Geert Uytterhoeven <geert@linux-m68k.org>,
 Claudiu <claudiu.beznea@tuxon.dev>
Cc: wim@linux-watchdog.org, robh+dt@kernel.org,
 krzysztof.kozlowski+dt@linaro.org, conor+dt@kernel.org,
 geert+renesas@glider.be, magnus.damm@gmail.com, mturquette@baylibre.com,
 sboyd@kernel.org, p.zabel@pengutronix.de, biju.das.jz@bp.renesas.com,
 linux-watchdog@vger.kernel.org, devicetree@vger.kernel.org,
 linux-kernel@vger.kernel.org, linux-renesas-soc@vger.kernel.org,
 linux-clk@vger.kernel.org, Claudiu Beznea <claudiu.beznea.uj@bp.renesas.com>
References: <20240131102017.1841495-1-claudiu.beznea.uj@bp.renesas.com>
 <20240131102017.1841495-3-claudiu.beznea.uj@bp.renesas.com>
 <CAMuHMdUT3XFz2a+iWxrT2p_fbe+QCoXuhYprcWY9v4e5KA5q2w@mail.gmail.com>
From: Guenter Roeck <linux@roeck-us.net>
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In-Reply-To: <CAMuHMdUT3XFz2a+iWxrT2p_fbe+QCoXuhYprcWY9v4e5KA5q2w@mail.gmail.com>
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On 2/1/24 00:52, Geert Uytterhoeven wrote:
> Hi Claudiu,
> 
> On Thu, Feb 1, 2024 at 2:30 AM Claudiu <claudiu.beznea@tuxon.dev> wrote:
>> From: Claudiu Beznea <claudiu.beznea.uj@bp.renesas.com>
>>
>> The rzg2l_wdt watchdog driver cannot work w/o CONFIG_PM=y (e.g. the
>> clocks are enabled though pm_runtime_* specific APIs). To avoid building
>> a driver that don't work select CONFIG_PM.
>>
>> Suggested-by: Guenter Roeck <linux@roeck-us.net>
>> Signed-off-by: Claudiu Beznea <claudiu.beznea.uj@bp.renesas.com>
> 
> Thanks for your patch!
> 
>> --- a/drivers/watchdog/Kconfig
>> +++ b/drivers/watchdog/Kconfig
>> @@ -912,6 +912,7 @@ config RENESAS_RZG2LWDT
>>          tristate "Renesas RZ/G2L WDT Watchdog"
>>          depends on ARCH_RENESAS || COMPILE_TEST
>>          select WATCHDOG_CORE
>> +       select PM
> 
> depends on PM
> 

Yes, I did not want to suggest that the driver should _select_ PM.
Sorry that I wasn't more specific.

Guenter

> The availability of PM is architecture/platform-specific, hence it
> must not be selected by individual drivers.
> 
>>          help
>>            This driver adds watchdog support for the integrated watchdogs in the
>>            Renesas RZ/G2L SoCs. These watchdogs can be used to reset a system.
> 
> Gr{oetje,eeting}s,
> 
>                          Geert
> 
> 
> --
> Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-m68k.org
> 
> In personal conversations with technical people, I call myself a hacker. But
> when I'm talking to journalists I just say "programmer" or something like that.
>                                  -- Linus Torvalds
>