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ASoC: adau1977: Add MICBIAS example in DT bindings

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Add MICBIAS property to the optional devicetree bindings.

Signed-off-by: Bogdan Togorean <bogdan.togorean@gmail.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
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Bogdan Togorean 2019-02-19 16:11:38 +02:00 committed by Mark Brown
parent a6d9cef30e
commit fb7a97456e
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7
Documentation/devicetree/bindings/sound/adi,adau1977.txt
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@ -23,6 +23,12 @@ Optional properties:
- DVDD-supply: supply voltage for the digital core, please consult - DVDD-supply: supply voltage for the digital core, please consult
Documentation/devicetree/bindings/regulator/regulator.txt Documentation/devicetree/bindings/regulator/regulator.txt
- adi,micbias: configures the voltage setting for the MICBIAS pin.
Select 0/1/2/3/4/5/6/7/8 to specify MICBIAS voltage
5V/5.5V/6V/6.5V/7V/7.5V/8V/8.5V/9V
If not specified the default value will be "7" meaning 8.5 Volts.
This property is only valid for the ADAU1977
For required properties on SPI, please consult For required properties on SPI, please consult
Documentation/devicetree/bindings/spi/spi-bus.txt Documentation/devicetree/bindings/spi/spi-bus.txt
@ -40,6 +46,7 @@ Examples:
AVDD-supply = <&regulator>; AVDD-supply = <&regulator>;
DVDD-supply = <&regulator_digital>; DVDD-supply = <&regulator_digital>;
adi,micbias = <3>;
reset_gpio = <&gpio 10 GPIO_ACTIVE_LOW>; reset_gpio = <&gpio 10 GPIO_ACTIVE_LOW>;
}; };