On Mon, Jul 1, 2013 at 12:33 PM, Shawn Guo shawn.guo@linaro.org wrote:
On Mon, Jul 01, 2013 at 12:11:58PM -0300, Fabio Estevam wrote:
On Mon, Jul 1, 2013 at 11:34 AM, Shawn Guo shawn.guo@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.
Do you have a commit id at which mxs i2c is known good? I would like to find out it's a mxs i2c issue or sgtl5000 problem.
I don't have it, but I am adding Alexandre in case he knows.
Alexandre,
Do you happen to know a commit id which does not show the mxs i2c timeouts you have been observing?
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.
Does I2C bitbang mode help fix the sgtl5000 issue here?
I haven't made this test.