linux-kernel - Re: [PATCH 4.4 035/190] ARM: dts: imx6qdl-wandboard: Fix audio channel swap

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Date:   Tue, 15 May 2018 20:35:24 +0100
From:   Ben Hutchings <ben.hutchings@...ethink.co.uk>
To:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        linux-kernel@...r.kernel.org
Cc:     stable@...r.kernel.org, Fabio Estevam <fabio.estevam@....com>,
        Shawn Guo <shawnguo@...nel.org>,
        Sasha Levin <alexander.levin@...rosoft.com>
Subject: Re: [PATCH 4.4 035/190] ARM: dts: imx6qdl-wandboard: Fix audio
 channel swap

On Wed, 2018-04-11 at 20:34 +0200, Greg Kroah-Hartman wrote:
> 4.4-stable review patch.  If anyone has any objections, please let me know.
> 
> ------------------
> 
> From: Fabio Estevam <fabio.estevam@....com>
> 
> 
> [ Upstream commit 79935915300c5eb88a0e94fa9148a7505c14a02a ]
> 
> When running a stress playback/stop loop test on a mx6wandboard channel
> swaps can be noticed randomly.
> 
> Increasing the SGTL5000 LRCLK pad strength to its maximum value fixes
> the issue, so add the 'lrclk-strength' property to avoid the audio
> channel swaps.
[...]

This depends on:

commit 570c70a60f53ca737ead4e5966c446bf0d39fac9
Author: Fabio Estevam <fabio.estevam@....com>
Date:   Wed Apr 5 11:32:34 2017 -0300

    ASoC: sgtl5000: Allow LRCLK pad drive strength to be changed

Ben.

-- 
Ben Hutchings
Software Developer, Codethink Ltd.