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

[Caleb Crome]

On Mon, Apr 3, 2017 at 4:40 PM, Fabio Estevam <festevam at gmail.com> wrote:
> 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?

Running on a quad.

>
> 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.

I'll run it for a much longer time and see what happens.