From mboxrd@z Thu Jan  1 00:00:00 1970
From: Fabio Estevam <festevam@gmail.com>
Subject: Re: [PATCH v2] ASoC: fsl_ssi: Fix channel swap on
	playback start
Date: Mon, 3 Apr 2017 20:40:02 -0300
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To: Caleb Crome <caleb@crome.org>
Cc: "alsa-devel@alsa-project.org" <alsa-devel@alsa-project.org>, Arnaud Mouiche <arnaud.mouiche@invoxia.com>, Timur Tabi <timur@tabi.org>, Nicolin Chen <nicoleotsuka@gmail.com>, Mark Brown <broonie@kernel.org>, Max Krummenacher <max.krummenacher@toradex.com>, Fabio Estevam <fabio.estevam@nxp.com>, Sascha Hauer <kernel@pengutronix.de>
List-Id: alsa-devel@alsa-project.org

Hi Caleb,

On Mon, Apr 3, 2017 at 8:22 PM, Caleb Crome <caleb@crome.org> wrote:

> With a vanilla kernel, it works perfectly with the pinctrl patch.
> In this case, I ran a cable from the wandboard over to my computer and
> recorded with audacity, using your wile true script above.
> Here you can see that with 4.11-rc5 plus the pinctrl patch, there is
> no channel swapping:
>
> http://imgur.com/od0LoJP

Which wandboard type do you have? mx6solo,dl or quad?

I am using  imx6dl-wandboard.

I am surprised that the channel swap does not happen on your case.
Maybe you need to run the test for an extended period of time?

On my case I usually get the swap in 1/10 of times. Max uses a Toradex
MX6DL Colibri board and sees the swap in 3-4% of the times.