10 Mar
2014
10 Mar
'14
1:11 p.m.
On Mon, Mar 10, 2014 at 12:09:38PM +0000, Mark Rutland wrote:
On Mon, Mar 10, 2014 at 08:52:21AM +0000, Jyri Sarha wrote:
1 or MICBIAS_2_0V - MICBIAS output is powered to 2.0V
2 or MICBIAS_2_5V - MICBIAS output is powered to 2.5V
3 or MICBIAS_AVDD - MICBIAS output is connected to AVDD
If this node is not mentioned or if the value is unknown, then
micbias is set to 2.0V.
Why does the dts write need to select these -- what prevents this getting selected dynamically?
It's a property of the system integration - the board will be designed to bias the microphone at some voltage.