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authorBogdan Togorean <bogdan.togorean@gmail.com>2019-02-19 16:11:38 +0200
committerMark Brown <broonie@kernel.org>2019-02-19 15:23:38 +0000
commitfb7a97456e324b4ac13044db17a4f5b974e49e33 (patch)
treea9a250c55576a547523a4cd8d65212384f865966 /Documentation/devicetree
parenta6d9cef30eb11b2de8cbfed9065e3dc5b1f829a8 (diff)
ASoC: adau1977: Add MICBIAS example in DT bindings
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>
Diffstat (limited to 'Documentation/devicetree')
-rw-r--r--Documentation/devicetree/bindings/sound/adi,adau1977.txt7
1 files changed, 7 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/sound/adi,adau1977.txt b/Documentation/devicetree/bindings/sound/adi,adau1977.txt
index e79aeef73f28..87c16e6f2e7c 100644
--- a/Documentation/devicetree/bindings/sound/adi,adau1977.txt
+++ b/Documentation/devicetree/bindings/sound/adi,adau1977.txt
@@ -23,6 +23,12 @@ Optional properties:
- DVDD-supply: supply voltage for the digital core, please consult
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
Documentation/devicetree/bindings/spi/spi-bus.txt
@@ -40,6 +46,7 @@ Examples:
AVDD-supply = <&regulator>;
DVDD-supply = <&regulator_digital>;
+ adi,micbias = <3>;
reset_gpio = <&gpio 10 GPIO_ACTIVE_LOW>;
};