Re: [alsa-devel] [PATCH] ASoC: wm8904: fix runtime warning

[Bo Shen <voice.shen@xxxxxxxxx>]

Hi Lars-Peter Clausen,

On 01/13/2015 04:56 PM, Lars-Peter Clausen wrote:
> On 01/13/2015 06:36 AM, Bo Shen wrote:
> > Hi Lars-Perter Clausen,
> >
> > On 01/12/2015 05:30 PM, Lars-Peter Clausen wrote:
> > > On 01/12/2015 04:32 AM, Bo Shen wrote:
> > > [...]
> > > > > > diff --git a/sound/soc/codecs/wm8904.c b/sound/soc/codecs/wm8904.c
> > > > > > index 4d2d2b1..38582d7 100644
> > > > > > --- a/sound/soc/codecs/wm8904.c
> > > > > > +++ b/sound/soc/codecs/wm8904.c
> > > > > > @@ -1076,10 +1076,10 @@ static const struct snd_soc_dapm_route
> > > > > > adc_intercon[] = {
> > > > > >       { "Right Capture PGA", NULL, "Right Capture Mux" },
> > > > > >       { "Right Capture PGA", NULL, "Right Capture Inverting Mux" },
> > > > > >
> > > > > > -    { "AIFOUTL", "Left",  "ADCL" },
> > > > > > -    { "AIFOUTL", "Right", "ADCR" },
> > > > > > -    { "AIFOUTR", "Left",  "ADCL" },
> > > > > > -    { "AIFOUTR", "Right", "ADCR" },
> > > > > > +    { "AIFOUTL", NULL, "ADCL" },
> > > > > > +    { "AIFOUTL", NULL, "ADCR" },
> > > > > > +    { "AIFOUTR", NULL, "ADCL" },
> > > > > > +    { "AIFOUTR", NULL, "ADCR" },
> > > > >
> > > > > Is this the right fix here? I am not super familiar with the
> > > > > driver but it appears to contain an "AIFOUTL Mux" control which
> > > > > is not connected to anything. Looks like maybe this is a mistake
> > > > > the mux is indeded to be included in the path? Feels like we
> > > > > should either remove the control as well or hook it into the
> > > > > path.
> > > >
> > > > Thank for your information.
> > > > I think here it should correct the path name as
> > > > --->8---
> > > > { "AIFOUTL Mux", "Left",  "ADCL" },
> > > > { "AIFOUTL Mux", "Right", "ADCR" },
> > > > { "AIFOUTR Mux", "Left",  "ADCL" },
> > > > { "AIFOUTR Mux", "Right", "ADCR" },
> > > > ---8<---
> > > >
> > > > Thanks again. I will send out the new version.
> > >
> > > Your probably also need to connect the mux to the output pins.
> >
> > Thanks for you information, after check the datasheet, I still don't know
> > which the mux should connect to which output pins.
>
> AIFOUTL Mux to AIFOUTL
> AIFOUTR Mux to AIFOUTR

Thanks. I will send new version patch for review.

Best Regards,
Bo Shen

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