linux-kernel - Re: [PATCH AUTOSEL 5.4 005/187] ASoC: max98090: remove msleep in PLL unlocked workaround

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Message-ID: <20191227224353.GN27497@sirena.org.uk>
Date:   Fri, 27 Dec 2019 22:43:53 +0000
From:   Mark Brown <broonie@...nel.org>
To:     Sasha Levin <sashal@...nel.org>
Cc:     linux-kernel@...r.kernel.org, stable@...r.kernel.org,
        Tzung-Bi Shih <tzungbi@...gle.com>,
        Pierre-Louis Bossart <pierre-louis.bossart@...ux.intel.com>,
        alsa-devel@...a-project.org
Subject: Re: [PATCH AUTOSEL 5.4 005/187] ASoC: max98090: remove msleep in PLL
 unlocked workaround

On Fri, Dec 27, 2019 at 12:37:53PM -0500, Sasha Levin wrote:
> From: Tzung-Bi Shih <tzungbi@...gle.com>
> 
> [ Upstream commit acb874a7c049ec49d8fc66c893170fb42c01bdf7 ]
> 
> It was observed Baytrail-based chromebooks could cause continuous PLL
> unlocked when using playback stream and capture stream simultaneously.
> Specifically, starting a capture stream after started a playback stream.
> As a result, the audio data could corrupt or turn completely silent.

This causes regressions, don't backport it.

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