1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
|
RT5682 audio CODEC
This device supports I2C only.
Required properties:
- compatible : "realtek,rt5682" or "realtek,rt5682i"
- reg : The I2C address of the device.
Optional properties:
- interrupts : The CODEC's interrupt output.
- realtek,dmic1-data-pin
0: dmic1 is not used
1: using GPIO2 pin as dmic1 data pin
2: using GPIO5 pin as dmic1 data pin
- realtek,dmic1-clk-pin
0: using GPIO1 pin as dmic1 clock pin
1: using GPIO3 pin as dmic1 clock pin
- realtek,jd-src
0: No JD is used
1: using JD1 as JD source
- realtek,ldo1-en-gpios : The GPIO that controls the CODEC's LDO1_EN pin.
- realtek,btndet-delay
The debounce delay for push button.
The delay time is realtek,btndet-delay value multiple of 8.192 ms.
If absent, the default is 16.
- #clock-cells : Should be set to '<1>', wclk and bclk sources provided.
- clock-output-names : Name given for DAI clocks output.
- clocks : phandle and clock specifier for codec MCLK.
- clock-names : Clock name string for 'clocks' attribute, should be "mclk".
- realtek,dmic-clk-rate-hz : Set the clock rate (hz) for the requirement of
the particular DMIC.
- realtek,dmic-delay-ms : Set the delay time (ms) for the requirement of
the particular DMIC.
- realtek,dmic-clk-driving-high : Set the high driving of the DMIC clock out.
- #sound-dai-cells: Should be set to '<0>'.
Pins on the device (for linking into audio routes) for RT5682:
* DMIC L1
* DMIC R1
* IN1P
* HPOL
* HPOR
Example:
rt5682 {
compatible = "realtek,rt5682i";
reg = <0x1a>;
interrupt-parent = <&gpio>;
interrupts = <TEGRA_GPIO(U, 6) IRQ_TYPE_LEVEL_HIGH>;
realtek,ldo1-en-gpios =
<&gpio TEGRA_GPIO(R, 2) GPIO_ACTIVE_HIGH>;
realtek,dmic1-data-pin = <1>;
realtek,dmic1-clk-pin = <1>;
realtek,jd-src = <1>;
realtek,btndet-delay = <16>;
#clock-cells = <1>;
clock-output-names = "rt5682-dai-wclk", "rt5682-dai-bclk";
clocks = <&osc>;
clock-names = "mclk";
};
|
