WM8524 audio CODEC This device does not use I2C or SPI but a simple Hardware Control Interface. Required properties: - compatible : "wlf,wm8524" - wlf,mute-gpios: a GPIO spec for the MUTE pin. Example: codec: wm8524@0 { compatible = "wlf,wm8524"; wlf,mute-gpios = <&gpio1 8 GPIO_ACTIVE_LOW>; };