Re: [alsa-devel] [PATCH] ASoC: sgtl5000: Enable VAG when DAC/ADC up

On Thu, Mar 29, 2012 at 03:17:00PM +0800, Zeng Zhaoming wrote:

So the code should be:

•  {"MIC_IN", NULL, "Mic Bias},	       /* mic bias --> mic_in */
   {"Capture Mux", "MIC_IN", "MIC_IN"},    /* mic_in --> adc_mux */
  

-+ {"Mic Bias", NULL, "MIC_IN"}, /* mic_in --> mic bias */ -+ {"Capture Mux", "MIC_IN", "Mic Bias"}, /* mic bias --> adc_mux */

and platform code

•  {"Mic Bias", NULL, "MIC"},
  

•  {"MIC_IN", NULL, "MIC"},
  

No, the bias should be a supply for the microphone - ensuring that this happens is the whole point of the patch I sent the other day.