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

Srinivas Kandagatla srinivas.kandagatla at linaro.org
Fri Jul 28 15:54:59 CEST 2017



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


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