1 RT5651 audio CODEC 1 RT5651 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 : "realtek,rt5651". 7 - compatible : "realtek,rt5651".
8 8
9 - reg : The I2C address of the device. 9 - reg : The I2C address of the device.
10 10
11 Optional properties: 11 Optional properties:
12 12
13 - realtek,in2-differential 13 - realtek,in2-differential
14 Boolean. Indicate MIC2 input are differentia 14 Boolean. Indicate MIC2 input are differential, rather than single-ended.
15 15
16 - realtek,dmic-en 16 - realtek,dmic-en
17 Boolean. true if dmic is used. 17 Boolean. true if dmic is used.
18 18
19 - realtek,jack-detect-source 19 - realtek,jack-detect-source
20 u32. Valid values: 20 u32. Valid values:
21 1: Use JD1_1 pin for jack-detect 21 1: Use JD1_1 pin for jack-detect
22 2: Use JD1_2 pin for jack-detect 22 2: Use JD1_2 pin for jack-detect
23 3: Use JD2 pin for jack-detect 23 3: Use JD2 pin for jack-detect
24 24
25 - realtek,jack-detect-not-inverted 25 - realtek,jack-detect-not-inverted
26 bool. Normal jack-detect switches give an in 26 bool. Normal jack-detect switches give an inverted (active-low) signal,
27 set this bool in the rare case you've a jack 27 set this bool in the rare case you've a jack-detect switch which is not
28 inverted. 28 inverted.
29 29
30 - realtek,over-current-threshold-microamp 30 - realtek,over-current-threshold-microamp
31 u32, micbias over-current detection threshol 31 u32, micbias over-current detection threshold in µA, valid values are
32 600, 1500 and 2000µA. 32 600, 1500 and 2000µA.
33 33
34 - realtek,over-current-scale-factor 34 - realtek,over-current-scale-factor
35 u32, micbias over-current detection scale-fa 35 u32, micbias over-current detection scale-factor, valid values are:
36 0: Scale current by 0.5 36 0: Scale current by 0.5
37 1: Scale current by 0.75 37 1: Scale current by 0.75
38 2: Scale current by 1.0 38 2: Scale current by 1.0
39 3: Scale current by 1.5 39 3: Scale current by 1.5
40 40
41 Pins on the device (for linking into audio rou 41 Pins on the device (for linking into audio routes) for RT5651:
42 42
43 * DMIC L1 43 * DMIC L1
44 * DMIC R1 44 * DMIC R1
45 * IN1P 45 * IN1P
46 * IN2P 46 * IN2P
47 * IN2N 47 * IN2N
48 * IN3P 48 * IN3P
49 * HPOL 49 * HPOL
50 * HPOR 50 * HPOR
51 * LOUTL 51 * LOUTL
52 * LOUTR 52 * LOUTR
53 * PDML 53 * PDML
54 * PDMR 54 * PDMR
55 55
56 Example: 56 Example:
57 57
58 rt5651: codec@1a { 58 rt5651: codec@1a {
59 compatible = "realtek,rt5651"; 59 compatible = "realtek,rt5651";
60 reg = <0x1a>; 60 reg = <0x1a>;
61 realtek,dmic-en = "true"; 61 realtek,dmic-en = "true";
62 realtek,in2-diff = "false"; 62 realtek,in2-diff = "false";
63 }; 63 };
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