xref: /freebsd/sys/contrib/device-tree/Bindings/sound/rt5682.txt (revision e32fecd0c2c3ee37c47ee100f169e7eb0282a873) 
1RT5682 audio CODEC
2
3This device supports I2C only.
4
5Required properties:
6
7- compatible : "realtek,rt5682" or "realtek,rt5682i"
8
9- reg : The I2C address of the device.
10
11Optional properties:
12
13- interrupts : The CODEC's interrupt output.
14
15- realtek,dmic1-data-pin
16  0: dmic1 is not used
17  1: using GPIO2 pin as dmic1 data pin
18  2: using GPIO5 pin as dmic1 data pin
19
20- realtek,dmic1-clk-pin
21  0: using GPIO1 pin as dmic1 clock pin
22  1: using GPIO3 pin as dmic1 clock pin
23
24- realtek,jd-src
25  0: No JD is used
26  1: using JD1 as JD source
27
28- realtek,ldo1-en-gpios : The GPIO that controls the CODEC's LDO1_EN pin.
29
30- realtek,btndet-delay
31  The debounce delay for push button.
32  The delay time is realtek,btndet-delay value multiple of 8.192 ms.
33  If absent, the default is 16.
34
35- #clock-cells : Should be set to '<1>',  wclk and bclk sources provided.
36- clock-output-names : Name given for DAI clocks output.
37
38- clocks : phandle and clock specifier for codec MCLK.
39- clock-names : Clock name string for 'clocks' attribute, should be "mclk".
40
41- realtek,dmic-clk-rate-hz : Set the clock rate (hz) for the requirement of
42  the particular DMIC.
43
44- realtek,dmic-delay-ms : Set the delay time (ms) for the requirement of
45  the particular DMIC.
46
47- realtek,dmic-clk-driving-high : Set the high driving of the DMIC clock out.
48
49- #sound-dai-cells: Should be set to '<0>'.
50
51Pins on the device (for linking into audio routes) for RT5682:
52
53  * DMIC L1
54  * DMIC R1
55  * IN1P
56  * HPOL
57  * HPOR
58
59Example:
60
61rt5682 {
62	compatible = "realtek,rt5682i";
63	reg = <0x1a>;
64	interrupt-parent = <&gpio>;
65	interrupts = <TEGRA_GPIO(U, 6) IRQ_TYPE_LEVEL_HIGH>;
66	realtek,ldo1-en-gpios =
67		<&gpio TEGRA_GPIO(R, 2) GPIO_ACTIVE_HIGH>;
68	realtek,dmic1-data-pin = <1>;
69	realtek,dmic1-clk-pin = <1>;
70	realtek,jd-src = <1>;
71	realtek,btndet-delay = <16>;
72
73	#clock-cells = <1>;
74	clock-output-names = "rt5682-dai-wclk", "rt5682-dai-bclk";
75
76	clocks = <&osc>;
77	clock-names = "mclk";
78};
79