Re: [PATCH v1 4/6] ASoC: codecs: msm8916-wcd-analog: set default micbias voltage to 1.8

From: Srinivas Kandagatla
Date: Fri Jul 28 2017 - 09:55:08 EST




On 28/07/17 14:40, Mark Brown wrote:
On Wed, Jul 26, 2017 at 02:35:10AM +0200, srinivas.kandagatla@xxxxxxxxxx wrote:
From: Srinivas Kandagatla <srinivas.kandagatla@xxxxxxxxxx>

This patch sets the default internal micbias voltage to 1.8v. This
default value is required for mbhc buttons to work. Also adds dt
bindings to allow the board level file to specify the required default
micbias value.

What was the default previously?

This was set to 2.7v previously for special headsets which have high impedance.