[alsa-devel] [PATCH 1/4] ASoC: sgtl5000: give it a ramping time before writting

[Fabio Estevam]

On Mon, Jul 1, 2013 at 11:34 AM, Shawn Guo <shawn.guo at linaro.org> wrote:

> And also why we do not see the impact of i2c issue on sgtl5000 before
> the offending commit af8ee11 (ASoC: sgtl5000: Fix driver probe after
> reset)?

Probably because the mxs i2c was working before this commit.

Commit af8ee11 does fix the reset probe on mx51/mx53/mx6.

It's only on mx28 that we have this issue.

Also, please see this patch from Alexandre Belloni:
https://lkml.org/lkml/2013/6/24/430

He can only connect the ADC chip if he uses I2C bitbang mode on mx28.