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

Mark Brown wrote at Sunday, November 27, 2011 5:22 AM:

Also rename it to MICBIAS to reflect the pin name and help any out of tree users notice the change.

...

diff --git a/sound/soc/codecs/wm8903.c b/sound/soc/codecs/wm8903.c

...

-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),

Acked-by: Stephen Warren swarren@nvidia.com

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