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};
95