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

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Message-ID: <4fa7d39d-dc34-4550-97fa-2b089f364cca@sirena.org.uk>
Date:   Mon, 2 Oct 2023 12:52:04 +0100
From:   Mark Brown <broonie@...nel.org>
To:     Linux regressions mailing list <regressions@...ts.linux.dev>
Cc:     Sven Frotscher <sven.frotscher@...il.com>,
        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

On Mon, Oct 02, 2023 at 11:32:48AM +0200, Linux regression tracking (Thorsten Leemhuis) wrote:

> Makes me wonder: How many more such quirk entries will be needed? Will
> we have all machines listed soon, or do we expect that future Lenovo
> hardware will need entries as well? If it's the latter: are quirks
> really the right solution here, or do they just hide some bug or then
> need for code that automatically handles things?

x86 firmware descriptions are terrible, it's just an endless procession
of quirks.  The model for ACPI is not to describe key information in the
kernel and instead on Windows load device specific information from
separately supplied tables.  On Linux that translates into these endless
quirks, on Windows it's platform specific drivers for otherwise generic
audio hardware.

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