diff options
| author | Alexandru Ardelean <alexandru.ardelean@analog.com> | 2018-10-02 15:06:30 +0300 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2018-10-05 12:40:40 +0100 |
| commit | d5a5dcd3f815c82e719fd6563f027673160f88e1 (patch) | |
| tree | 0d1939661b9c85acbb9ccc4cca4008313853965b /Documentation/devicetree/bindings/sound | |
| parent | 9c6c4d961e634413add345ee030e108e6d19cea2 (diff) | |
ASoC: dt-bindings: add dt bindings for adau1977 audio codec
Add device-tree bindings documentation file for ADAU1977 audio codec.
This describes device-tree fields that are already supported by the driver.
The driver supports both I2C AND and SPI, and this doc covers both aspects
of the DT configuration.
Signed-off-by: Alexandru Ardelean <alexandru.ardelean@analog.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'Documentation/devicetree/bindings/sound')
| -rw-r--r-- | Documentation/devicetree/bindings/sound/adi,adau1977.txt | 54 |
1 files changed, 54 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/sound/adi,adau1977.txt b/Documentation/devicetree/bindings/sound/adi,adau1977.txt new file mode 100644 index 000000000000..e79aeef73f28 --- /dev/null +++ b/Documentation/devicetree/bindings/sound/adi,adau1977.txt @@ -0,0 +1,54 @@ +Analog Devices ADAU1977/ADAU1978/ADAU1979 + +Datasheets: +http://www.analog.com/media/en/technical-documentation/data-sheets/ADAU1977.pdf +http://www.analog.com/media/en/technical-documentation/data-sheets/ADAU1978.pdf +http://www.analog.com/media/en/technical-documentation/data-sheets/ADAU1979.pdf + +This driver supports both the I2C and SPI bus. + +Required properties: + - compatible: Should contain one of the following: + "adi,adau1977" + "adi,adau1978" + "adi,adau1979" + + - AVDD-supply: analog power supply for the device, please consult + Documentation/devicetree/bindings/regulator/regulator.txt + +Optional properties: + - reset-gpio: the reset pin for the chip, for more details consult + Documentation/devicetree/bindings/gpio/gpio.txt + + - DVDD-supply: supply voltage for the digital core, please consult + Documentation/devicetree/bindings/regulator/regulator.txt + +For required properties on SPI, please consult +Documentation/devicetree/bindings/spi/spi-bus.txt + +Required properties on I2C: + + - reg: The i2c address. Value depends on the state of ADDR0 + and ADDR1, as wired in hardware. + +Examples: + + adau1977_spi: adau1977@0 { + compatible = "adi,adau1977"; + spi-max-frequency = <600000>; + + AVDD-supply = <®ulator>; + DVDD-supply = <®ulator_digital>; + + reset_gpio = <&gpio 10 GPIO_ACTIVE_LOW>; + }; + + adau1977_i2c: adau1977@11 { + compatible = "adi,adau1977"; + reg = <0x11>; + + AVDD-supply = <®ulator>; + DVDD-supply = <®ulator_digital>; + + reset_gpio = <&gpio 10 GPIO_ACTIVE_LOW>; + }; |