Re: [alsa-devel] PXA27x and AC97 reset bug

Hi,

Robert Jarzmik wrote:

I hope this subject wasn't previously discussed, as I couldn't find a trace ...

The basic question is : why can't the PXA27x reset the AC97 bus in front of an wm9713 ?

I have nearly the same problem here: pxa255, wm9712, sharp SL-6000 (tosa). However resetting the codec in a loop sometime helps.

Any info would be appreciated.

And more precisely, I'd like to know :

• are there any references to this bug (Intel note, mailing list ref,

...) - is it a hardware bug on PXA27x side ? - is it a hardware bug on wm9713 side ? - is there a known generic workaround (assuming GPIO113 is connected to wm9713 reset line is not generic for me) ?

• is there a known platform where this bug does not happen ?