linux-kernel - Re: [PATCH v4] ASoC: amd: yc: Fix non-functional mic on Lenovo 82YM

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Message-Id: <9XKW1S.IRRCIDM08XWX1@gmail.com>
Date:   Mon, 02 Oct 2023 15:17:33 +0200
From:   Sven Frotscher <sven.frotscher@...il.com>
To:     Mark Brown <broonie@...nel.org>
Cc:     Linux regressions mailing list <regressions@...ts.linux.dev>,
        mario.limonciello@....com, git@...ustwikerfors.se,
        alsa-devel@...a-project.org, lgirdwood@...il.com,
        linux-kernel@...r.kernel.org, stable@...r.kernel.org,
        Takashi Iwai <tiwai@...e.com>
Subject: Re: [PATCH v4] ASoC: amd: yc: Fix non-functional mic on Lenovo 82YM



>>  > Until someone tests or otherwise provides specific information on 
>> a
>>  > given machine we're just guessing about how it's wired up.
> 
>>  What specific information are we talking about here? I have the 
>> 82YM in
>>  front of me and could help investigate.
> 
> We need to know what magic set of quirks makes the thing work.  Are 
> you
> saying that your patch doesn't actually do that?

It does.

Maybe the non-quirk check (ll. 395-403, seems to be using ACPI) is too 
specific? But I'm a bit out of my depth here, so I can't investigate 
that by myself.