Re: [PATCH] ASoC: rt766: fix HID dependency for SND_SOC_SDCA_HID

[Charles Keepax <ckeepax@opensource.cirrus.com>]

On Wed, Sep 16, 2026 at 05:36:02PM +0200, Arnd Bergmann wrote:
> On Wed, Sep 16, 2026, at 17:10, Mark Brown wrote:
> > On Tue, Sep 15, 2026 at 11:16:34PM +0200, Arnd Bergmann wrote:
> >> Selecting SND_SOC_SDCA_HID only works if HID is enabled:
> >
> >> --- a/sound/soc/codecs/Kconfig
> >> +++ b/sound/soc/codecs/Kconfig
> >> @@ -1992,6 +1992,7 @@ config SND_SOC_RT766_SDCA_SDW
> >>  	tristate "Realtek RT766 SDCA Codec - SDW"
> >>  	depends on SOUNDWIRE
> >>  	depends on SND_SOC_SDCA
> >> +	depends on HID
> >>  	select SND_SOC_SDCA_HID
> >>  	select SND_SOC_SDCA_IRQ
> >>  	select REGMAP_SOUNDWIRE
> >
> > Should that be HID=y || HID=SND_SOC_SDCA like for SND_SOC_SDCA_HID and
> > SND_SOC_SDCA_CLASS?  The dependencies on _CLASS should stop the
> > problematic cases from actually occurring but I'm not sure if it stops
> > the warning.
> 
> Yes. Just as I was trying to write up my presentation slides for next
> week trying to explain how nobody ever gets this right, you have reminded
> me that I can't do it either ;-)
> 
> How about this version?
> 
> diff --git a/sound/soc/codecs/Kconfig b/sound/soc/codecs/Kconfig
> index 181ed1b8a6dc..f88381523ea3 100644
> --- a/sound/soc/codecs/Kconfig
> +++ b/sound/soc/codecs/Kconfig
> @@ -1991,10 +1991,7 @@ config SND_SOC_RT715_SDCA_SDW
>  config SND_SOC_RT766_SDCA_SDW
>  	tristate "Realtek RT766 SDCA Codec - SDW"
>  	depends on SOUNDWIRE
> -	depends on SND_SOC_SDCA
> -	depends on HID
> -	select SND_SOC_SDCA_HID
> -	select SND_SOC_SDCA_IRQ
> +	depends on SND_SOC_SDCA_CLASS
>  	select REGMAP_SOUNDWIRE
>  	select REGMAP_SOUNDWIRE_MBQ
>  
> I think this is much clearer than the original version or my
> first patch, as it avoids the fragile 'select'. If you like this
> one, I'll send a v2 after this passes some more randconfig testing,
> or you can apply that directly.

This seems a little odd though, as the driver doesn't actually
depend on SND_SOC_SDCA_CLASS. That builds in the actual class
driver, which this driver doesn't use, it only uses functions
from the SDCA library.

THanks,
Charles