[alsa-devel] [PATCH v2] ASoC: fsl_ssi: Fix channel swap on playback start

[Fabio Estevam]

Hi Caleb,

On Mon, Apr 3, 2017 at 8:22 PM, Caleb Crome <caleb at 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.