rt5640.txt (2155B)
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,ldo1-en-gpios : The GPIO that controls the CODEC's LDO1_EN pin. 24 25- realtek,dmic1-data-pin 26 0: dmic1 is not used 27 1: using IN1P pin as dmic1 data pin 28 2: using GPIO3 pin as dmic1 data pin 29 30- realtek,dmic2-data-pin 31 0: dmic2 is not used 32 1: using IN1N pin as dmic2 data pin 33 2: using GPIO4 pin as dmic2 data pin 34 35- realtek,jack-detect-source 36 u32. Valid values: 37 0: jack-detect is not used 38 1: Use GPIO1 for jack-detect 39 2: Use JD1_IN4P for jack-detect 40 3: Use JD2_IN4N for jack-detect 41 4: Use GPIO2 for jack-detect 42 5: Use GPIO3 for jack-detect 43 6: Use GPIO4 for jack-detect 44 45- realtek,jack-detect-not-inverted 46 bool. Normal jack-detect switches give an inverted signal, set this bool 47 in the rare case you've a jack-detect switch which is not inverted. 48 49- realtek,over-current-threshold-microamp 50 u32, micbias over-current detection threshold in µA, valid values are 51 600, 1500 and 2000µA. 52 53- realtek,over-current-scale-factor 54 u32, micbias over-current detection scale-factor, valid values are: 55 0: Scale current by 0.5 56 1: Scale current by 0.75 57 2: Scale current by 1.0 58 3: Scale current by 1.5 59 60Pins on the device (for linking into audio routes) for RT5639/RT5640: 61 62 * DMIC1 63 * DMIC2 64 * MICBIAS1 65 * IN1P 66 * IN1N 67 * IN2P 68 * IN2N 69 * IN3P 70 * IN3N 71 * HPOL 72 * HPOR 73 * LOUTL 74 * LOUTR 75 * SPOLP 76 * SPOLN 77 * SPORP 78 * SPORN 79 80Additional pins on the device for RT5640: 81 82 * MONOP 83 * MONON 84 85Example: 86 87rt5640 { 88 compatible = "realtek,rt5640"; 89 reg = <0x1c>; 90 interrupt-parent = <&gpio>; 91 interrupts = <TEGRA_GPIO(W, 3) IRQ_TYPE_LEVEL_HIGH>; 92 realtek,ldo1-en-gpios = 93 <&gpio TEGRA_GPIO(V, 3) GPIO_ACTIVE_HIGH>; 94};