Re: [PATCH v6 2/9] watchdog: rzg2l_wdt: Make the driver depend on PM

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Hi Claudiu,

On Fri, Feb 9, 2024 at 1:25 PM claudiu beznea <claudiu.beznea@xxxxxxxxx> wrote:
> On 08.02.2024 14:53, Geert Uytterhoeven wrote:
> > On Thu, Feb 8, 2024 at 1:26 PM Claudiu <claudiu.beznea@xxxxxxxxx> wrote:
> >> From: Claudiu Beznea <claudiu.beznea.uj@xxxxxxxxxxxxxx>
> >>
> >> 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 doesn't work make explicit the dependency on CONFIG_PM.
> >>
> >> Suggested-by: Guenter Roeck <linux@xxxxxxxxxxxx>
> >> Signed-off-by: Claudiu Beznea <claudiu.beznea.uj@xxxxxxxxxxxxxx>
> >> ---
> >>
> >> Changes in v6:
> >> - update patch description
> >> - fixed the dependency on COMPILE_TEST previously introduced
> >
> > Thanks for the update!
> >
> >> --- a/drivers/watchdog/Kconfig
> >> +++ b/drivers/watchdog/Kconfig
> >> @@ -911,6 +911,7 @@ config RENESAS_RZN1WDT
> >>  config RENESAS_RZG2LWDT
> >>         tristate "Renesas RZ/G2L WDT Watchdog"
> >>         depends on ARCH_RZG2L || ARCH_R9A09G011 || COMPILE_TEST
> >> +       depends on PM
> >
> > depends on PM || COMPILE_TEST
>
> Isn't "depends on PM" enough? As of [1] ("If multiple dependencies are
> defined, they are connected with '&&'") the above:
>
> depends on ARCH_RZG2L || ARCH_R9A09G011 || COMPILE_TEST
> depends on PM
>
> are translated into:
> depends on (ARCH_RZG2L || ARCH_R9A09G011 || COMPILE_TEST) && PM
>
> Please let me know if I'm wrong.

That is correct.  But you still can compile-test this driver when
compiling for a different platform, and CONFIG_PM is disabled.

Gr{oetje,eeting}s,

                        Geert

-- 
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@xxxxxxxxxxxxxx

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





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