[alsa-devel] ASoC WM8510 Mic PGA problem

ext-jukka.hynninen at vaisala.com ext-jukka.hynninen at vaisala.com
Fri Oct 3 15:20:20 CEST 2008

Hi all,

I'm facing trouble with programmable mic gain stage and WM8510 ASoC

First of all, the DAPM control "Mic PGA Switch" seems to be operating
just the opposite way the codec datasheet suggests. I inverted the
control with expected result, PGA now almost works.

When I start capturing, the "Mic PGA" control is instantly turned off
again. If I manually enable the control while the capture is running, it
works just fine.

Any ideas? Am I missing some DAPM routings?


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