linux-kernel - Re: [PATCH v4] ASoC: fsl_sai: Force a software reset when starting in consumer mode

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Message-Id: <175128361295.28563.443890248287811390.b4-ty@kernel.org>
Date: Mon, 30 Jun 2025 12:40:12 +0100
From: Mark Brown <broonie@...nel.org>
To: Shengjiu Wang <shengjiu.wang@...il.com>, Xiubo Li <Xiubo.Lee@...il.com>, 
 Arun Raghavan <arun@...nraghavan.net>
Cc: Fabio Estevam <festevam@...il.com>, 
 Nicolin Chen <nicoleotsuka@...il.com>, Liam Girdwood <lgirdwood@...il.com>, 
 Jaroslav Kysela <perex@...ex.cz>, Takashi Iwai <tiwai@...e.com>, 
 Pieterjan Camerlynck <p.camerlynck@...evic.com>, 
 linux-sound@...r.kernel.org, linuxppc-dev@...ts.ozlabs.org, 
 linux-kernel@...r.kernel.org, Arun Raghavan <arun@...mptotic.io>, 
 stable@...r.kernel.org
Subject: Re: [PATCH v4] ASoC: fsl_sai: Force a software reset when starting
 in consumer mode

On Thu, 26 Jun 2025 09:08:25 -0400, Arun Raghavan wrote:
> On an imx8mm platform with an external clock provider, when running the
> receiver (arecord) and triggering an xrun with xrun_injection, we see a
> channel swap/offset. This happens sometimes when running only the
> receiver, but occurs reliably if a transmitter (aplay) is also
> concurrently running.
> 
> It seems that the SAI loses track of frame sync during the trigger stop
> -> trigger start cycle that occurs during an xrun. Doing just a FIFO
> reset in this case does not suffice, and only a software reset seems to
> get it back on track.
> 
> [...]

Applied to

   https://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound.git for-next

Thanks!

[1/1] ASoC: fsl_sai: Force a software reset when starting in consumer mode
      commit: dc78f7e59169d3f0e6c3c95d23dc8e55e95741e2

All being well this means that it will be integrated into the linux-next
tree (usually sometime in the next 24 hours) and sent to Linus during
the next merge window (or sooner if it is a bug fix), however if
problems are discovered then the patch may be dropped or reverted.

You may get further e-mails resulting from automated or manual testing
and review of the tree, please engage with people reporting problems and
send followup patches addressing any issues that are reported if needed.

If any updates are required or you are submitting further changes they
should be sent as incremental updates against current git, existing
patches will not be replaced.

Please add any relevant lists and maintainers to the CCs when replying
to this mail.

Thanks,
Mark