WM8741 audio CODEC This device supports both I2C and SPI (configured with pin strapping on the board). Required properties: - compatible : "wlf,wm8741" - reg : the I2C address of the device for I2C, the chip select number for SPI. Optional properties: - diff-mode: Differential output mode configuration. Default value for field DIFF in register R8 (MODE_CONTROL_2). If absent, the default is 0, shall be: 0 = stereo 1 = mono left 2 = stereo reversed 3 = mono right Example: codec: wm8741@1a { compatible = "wlf,wm8741"; reg = <0x1a>; diff-mode = <3>; };