[alsa-devel] [PATCH] ASoC: Convert WM8903 MICBIAS to a supply widget

Mark Brown broonie at opensource.wolfsonmicro.com
Mon Nov 28 18:00:29 CET 2011


On Mon, Nov 28, 2011 at 08:58:32AM -0800, Stephen Warren wrote:
> Mark Brown wrote at Sunday, November 27, 2011 5:22 AM:

> > -SND_SOC_DAPM_MICBIAS("Mic Bias", WM8903_MIC_BIAS_CONTROL_0, 0, 0),
> > +SND_SOC_DAPM_SUPPLY("MICBIAS", WM8903_MIC_BIAS_CONTROL_0, 0, 0, NULL, 0),

> For my education, why is this better modeled as a supply instead of a
> mic bias? Thanks.

The wiring in the DAPM map is *much* more comprehensible.


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