linux-arkmicro/linux/Documentation/devicetree/bindings/sound/adi,adau7002.txt

Analog Devices ADAU7002 Stereo PDM-to-I2S/TDM Converter

Required properties:

 - compatible: Must be "adi,adau7002"

Optional properties:

 - IOVDD-supply: Phandle and specifier for the power supply providing the IOVDD
	supply as covered in Documentation/devicetree/bindings/regulator/regulator.txt

	If this property is not present it is assumed that the supply pin is
	hardwired to always on.

Example:
	adau7002: pdm-to-i2s {
		compatible = "adi,adau7002";
		IOVDD-supply = <&supply>;
	};