1RT5640/RT5639 audio CODEC 2 3This device supports I2C only. 4 5Required properties: 6 7- compatible : One of "realtek,rt5640" or "realtek,rt5639". 8 9- reg : The I2C address of the device. 10 11- interrupts : The CODEC's interrupt output. 12 13Optional properties: 14 15- clocks: The phandle of the master clock to the CODEC 16- clock-names: Should be "mclk" 17 18- realtek,in1-differential 19- realtek,in2-differential 20- realtek,in3-differential 21 Boolean. Indicate MIC1/2/3 input are differential, rather than single-ended. 22 23- realtek,lout-differential 24 Boolean. Indicate LOUT output is differential, rather than stereo. 25 26- realtek,ldo1-en-gpios : The GPIO that controls the CODEC's LDO1_EN pin. 27 28- realtek,dmic1-data-pin 29 0: dmic1 is not used 30 1: using IN1P pin as dmic1 data pin 31 2: using GPIO3 pin as dmic1 data pin 32 33- realtek,dmic2-data-pin 34 0: dmic2 is not used 35 1: using IN1N pin as dmic2 data pin 36 2: using GPIO4 pin as dmic2 data pin 37 38- realtek,jack-detect-source 39 u32. Valid values: 40 0: jack-detect is not used 41 1: Use GPIO1 for jack-detect 42 2: Use JD1_IN4P for jack-detect 43 3: Use JD2_IN4N for jack-detect 44 4: Use GPIO2 for jack-detect 45 5: Use GPIO3 for jack-detect 46 6: Use GPIO4 for jack-detect 47 48- realtek,jack-detect-not-inverted 49 bool. Normal jack-detect switches give an inverted signal, set this bool 50 in the rare case you've a jack-detect switch which is not inverted. 51 52- realtek,over-current-threshold-microamp 53 u32, micbias over-current detection threshold in µA, valid values are 54 600, 1500 and 2000µA. 55 56- realtek,over-current-scale-factor 57 u32, micbias over-current detection scale-factor, valid values are: 58 0: Scale current by 0.5 59 1: Scale current by 0.75 60 2: Scale current by 1.0 61 3: Scale current by 1.5 62 63Pins on the device (for linking into audio routes) for RT5639/RT5640: 64 65 * DMIC1 66 * DMIC2 67 * MICBIAS1 68 * IN1P 69 * IN1N 70 * IN2P 71 * IN2N 72 * IN3P 73 * IN3N 74 * HPOL 75 * HPOR 76 * LOUTL 77 * LOUTR 78 * SPOLP 79 * SPOLN 80 * SPORP 81 * SPORN 82 83Additional pins on the device for RT5640: 84 85 * MONOP 86 * MONON 87 88Example: 89 90rt5640 { 91 compatible = "realtek,rt5640"; 92 reg = <0x1c>; 93 interrupt-parent = <&gpio>; 94 interrupts = <TEGRA_GPIO(W, 3) IRQ_TYPE_LEVEL_HIGH>; 95 realtek,ldo1-en-gpios = 96 <&gpio TEGRA_GPIO(V, 3) GPIO_ACTIVE_HIGH>; 97}; 98