WM8737 audio CODEC This device supports both I2C and SPI (configured with pin strapping on the board). Required properties: - compatible : "wlf,wm8737" - reg : the I2C address of the device for I2C, the chip select number for SPI. Example: codec: wm8737@1a { compatible = "wlf,wm8737"; reg = <0x1a>; };