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. - realtek,dmic1-data-pin 0: dmic1 is not used 1: using IN1P pin as dmic1 data pin 2: using GPIO3 pin as dmic1 data pin - realtek,dmic2-data-pin 0: dmic2 is not used 1: using IN1N pin as dmic2 data pin 2: using GPIO4 pin as dmic2 data pin - realtek,jack-detect-source u32. Valid values: 0: jack-detect is not used 1: Use GPIO1 for jack-detect 2: Use JD1_IN4P for jack-detect 3: Use JD2_IN4N for jack-detect 4: Use GPIO2 for jack-detect 5: Use GPIO3 for jack-detect 6: Use GPIO4 for jack-detect - realtek,jack-detect-not-inverted bool. Normal jack-detect switches give an inverted signal, set this bool in the rare case you've a jack-detect switch which is not inverted. - realtek,over-current-threshold-microamp u32, micbias over-current detection threshold in µA, valid values are 600, 1500 and 2000µA. - realtek,over-current-scale-factor u32, micbias over-current detection scale-factor, valid values are: 0: Scale current by 0.5 1: Scale current by 0.75 2: Scale current by 1.0 3: Scale current by 1.5 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>; };