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Unverified Commit d5a5dcd3 authored by Alexandru Ardelean's avatar Alexandru Ardelean Committed by Mark Brown
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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: default avatarAlexandru Ardelean <alexandru.ardelean@analog.com>
Signed-off-by: default avatarMark Brown <broonie@kernel.org>
parent 9c6c4d96

Documentation/devicetree/bindings/sound/adi,adau1977.txt

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Original line number Diff line number Diff line 
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 = <&regulator>;

		DVDD-supply = <&regulator_digital>;



		reset_gpio = <&gpio 10 GPIO_ACTIVE_LOW>;

	};



	adau1977_i2c: adau1977@11 {

		compatible = "adi,adau1977";

		reg = <0x11>;



		AVDD-supply = <&regulator>;

		DVDD-supply = <&regulator_digital>;



		reset_gpio = <&gpio 10 GPIO_ACTIVE_LOW>;

	};