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