Zhaoming,

On Thu, Mar 29, 2012 at 08:09:33PM +0800, Zeng Zhaoming wrote: ...

This "Mic Bias" is codec internal controller, Machine code should not touch this.

In the end, machine driver will have to use it to specify the map. You even said the below.

and platform code + {"Mic Bias", NULL, "MIC"}, - {"MIC_IN", NULL, "MIC"},