tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
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};