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

[Bo Shen <voice.shen@xxxxxxxxx>]

Hi Charles,

On 01/09/2015 07:16 PM, Charles Keepax wrote:
> On Fri, Jan 09, 2015 at 04:53:40PM +0800, Bo Shen wrote:
> > As the commit 5fe5b76 (ASoC: dapm: Do not pretend to support
> > controls for non mixer/mux widgets) remove the fake control.
> >
> > Then, the wm8904 throw out the following warning at runtime.
> > --->8---
> > wm8904 1-001a: Control not supported for path ADCL -> [Left] -> AIFOUTL
> > wm8904 1-001a: ASoC: no dapm match for ADCL --> Left --> AIFOUTL
> > wm8904 1-001a: ASoC: Failed to add route ADCL -> Left -> AIFOUTL
> > wm8904 1-001a: Control not supported for path ADCR -> [Right] -> AIFOUTL
> > wm8904 1-001a: ASoC: no dapm match for ADCR --> Right --> AIFOUTL
> > wm8904 1-001a: ASoC: Failed to add route ADCR -> Right -> AIFOUTL
> > wm8904 1-001a: Control not supported for path ADCL -> [Left] -> AIFOUTR
> > wm8904 1-001a: ASoC: no dapm match for ADCL --> Left --> AIFOUTR
> > wm8904 1-001a: ASoC: Failed to add route ADCL -> Left -> AIFOUTR
> > wm8904 1-001a: Control not supported for path ADCR -> [Right] -> AIFOUTR
> > wm8904 1-001a: ASoC: no dapm match for ADCR --> Right --> AIFOUTR
> > wm8904 1-001a: ASoC: Failed to add route ADCR -> Right -> AIFOUTR
> > wm8904 1-001a: Control not supported for path AIFINR -> [Right] -> DACL
> > wm8904 1-001a: ASoC: no dapm match for AIFINR --> Right --> DACL
> > wm8904 1-001a: ASoC: Failed to add route AIFINR -> Right -> DACL
> > wm8904 1-001a: Control not supported for path AIFINL -> [Left] -> DACL
> > wm8904 1-001a: ASoC: no dapm match for AIFINL --> Left --> DACL
> > wm8904 1-001a: ASoC: Failed to add route AIFINL -> Left -> DACL
> > wm8904 1-001a: Control not supported for path AIFINR -> [Right] -> DACR
> > wm8904 1-001a: ASoC: no dapm match for AIFINR --> Right --> DACR
> > wm8904 1-001a: ASoC: Failed to add route AIFINR -> Right -> DACR
> > wm8904 1-001a: Control not supported for path AIFINL -> [Left] -> DACR
> > wm8904 1-001a: ASoC: no dapm match for AIFINL --> Left --> DACR
> > wm8904 1-001a: ASoC: Failed to add route AIFINL -> Left -> DACR
> > ---8<---
> >
> > This patch is used to remove these warning.
> >
> > Signed-off-by: Bo Shen <voice.shen@xxxxxxxxx>
> > ---
> >
> >   sound/soc/codecs/wm8904.c | 16 ++++++++--------
> >   1 file changed, 8 insertions(+), 8 deletions(-)
> >
> > 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.

> Thanks,
> Charles

Best Regards,
Bo Shen
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