linux-kernel - Re: [PATCH] ASoC: fsl_sai: Fix channel swap issue on i.MX8MP

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Message-ID: <CAOMZO5CjoXFx4uX7w7My_zSeo_+mhQqhWYH3PNdV6SQOUXTxtg@mail.gmail.com>
Date: Mon, 18 Dec 2023 07:11:36 -0300
From: Fabio Estevam <festevam@...il.com>
To: Shengjiu Wang <shengjiu.wang@....com>
Cc: shengjiu.wang@...il.com, Xiubo.Lee@...il.com, nicoleotsuka@...il.com, 
	lgirdwood@...il.com, broonie@...nel.org, perex@...ex.cz, tiwai@...e.com, 
	alsa-devel@...a-project.org, linuxppc-dev@...ts.ozlabs.org, 
	linux-kernel@...r.kernel.org, linux-sound@...r.kernel.org
Subject: Re: [PATCH] ASoC: fsl_sai: Fix channel swap issue on i.MX8MP

On Mon, Dec 18, 2023 at 7:10 AM Shengjiu Wang <shengjiu.wang@....com> wrote:
>
> When flag mclk_with_tere and mclk_direction_output enabled,
> The SAI transmitter or receiver will be enabled in very early
> stage, that if FSL_SAI_xMR is set by previous case,
> for example previous case is one channel, current case is
> two channels, then current case started with wrong xMR in
> the beginning, then channel swap happen.
>
> The patch is to clear xMR in hw_free() to avoid such
> channel swap issue.
>
> Signed-off-by: Shengjiu Wang <shengjiu.wang@....com>

Fixes tag, please.