linux-kernel - Re: [PATCH] ASoC: amd: fix unmet dependency on GPIOLIB for SND_SOC

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Date:   Tue, 18 Jan 2022 17:10:55 +0000
From:   Mark Brown <broonie@...nel.org>
To:     Julian Braha <julianbraha@...il.com>
Cc:     lgirdwood@...il.com, perex@...ex.cz, tiwai@...e.com,
        Vijendar.Mukunda@....com, AjitKumar.Pandey@....com,
        pierre-louis.bossart@...ux.intel.com, kai.vehmanen@...ux.intel.com,
        tanureal@...nsource.cirrus.com, linux-kernel@...r.kernel.org,
        alsa-devel@...a-project.org, fazilyildiran@...il.com
Subject: Re: [PATCH] ASoC: amd: fix unmet dependency on GPIOLIB for
 SND_SOC_DMIC

On Sun, Jan 16, 2022 at 11:15:28PM -0500, Julian Braha wrote:
> When SND_SOC_AMD_YC_MACH is selected,
> and GPIOLIB is not selected,
> Kbuild gives the following warning:
> 
> WARNING: unmet direct dependencies detected for SND_SOC_DMIC
>   Depends on [n]: SOUND [=y] && !UML && SND [=y] && SND_SOC [=y] && GPIOLIB [=n]
>   Selected by [y]:
>   - SND_SOC_AMD_YC_MACH [=y] && SOUND [=y] && !UML && SND [=y] && SND_SOC [=y] && SND_SOC_AMD_ACP6x [=y]

Why is this a good fix and not removing the dependency on gpiolib from
DMIC?  While a DMIC *can* use a GPIO it's not something that's an
intrinsic requirement and it's entirely optional in the code.

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