[alsa-devel] ASoC: wm9712: Microphone doesn't work, "Capture Volume" inverted

Christoph Fritz chf.fritz at googlemail.com
Fri May 4 15:28:45 CEST 2012

On Fri, Apr 27, 2012 at 02:46:39PM +0100, Mark Brown wrote:
> On Fri, Apr 27, 2012 at 10:00:02AM +0200, Christoph Fritz wrote:
> > On Thu, 2012-04-26 at 22:37 +0100, Mark Brown wrote:
> > >   The write will be suppresed if the register contents don't
> > > change which looks like what you're seeing here - 
> > Can you imagine why the registers don't change?
> I can't immediately think of any reason, no - I'd step through or
> annotate the code and have a look.

I'm still on.

And while testing WM9712 its touchpad interface, connecting a 800x600
display (instead of the default 640x480 one) results in a gone sound and
input-device - pretty queer:

WM9711/WM9712 SoC Audio Codec 0.4
asoc: platform pcm constructor failed
asoc: can't create pcm HiFi
asoc: failed to instantiate card PhyCORE-ac97-audio: -12

I have to admit that I used this time a 3.2 kernel. I'll test with
current later these days.

 -- Christoph

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