RT5640/RT5639 audio CODEC This device supports I2C only. Required properties: - compatible : One of "realtek,rt5640" or "realtek,rt5639". - reg : The I2C address of the device. - interrupts : The CODEC's interrupt output. Optional properties: - clocks: The phandle of the master clock to the CODEC - clock-names: Should be "mclk" - realtek,in1-differential - realtek,in2-differential - realtek,in3-differential Boolean. Indicate MIC1/2/3 input are differential, rather than single-ended. - realtek,ldo1-en-gpios : The GPIO that controls the CODEC's LDO1_EN pin. Pins on the device (for linking into audio routes) for RT5639/RT5640: * DMIC1 * DMIC2 * MICBIAS1 * IN1P * IN1N * IN2P * IN2N * IN3P * IN3N * HPOL * HPOR * LOUTL * LOUTR * SPOLP * SPOLN * SPORP * SPORN Additional pins on the device for RT5640: * MONOP * MONON Example: rt5640 { compatible = "realtek,rt5640"; reg = <0x1c>; interrupt-parent = <&gpio>; interrupts = ; realtek,ldo1-en-gpios = <&gpio TEGRA_GPIO(V, 3) GPIO_ACTIVE_HIGH>; };