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NXP TFA9879 class-D audio amplifier Required properties: - compatible : "nxp,tfa9879" - reg : the I2C address of the device - #sound-dai-cells : must be 0. Example: &i2c1 { pinctrl-names = "default"; pinctrl-0 = <&pinctrl_i2c1>; amp: amp@6c { #sound-dai-cells = <0>; compatible = "nxp,tfa9879"; reg = <0x6c>; }; };