Merge tag 'ntb-3.18' of git://github.com/jonmason/ntb
[sfrench/cifs-2.6.git] / Documentation / devicetree / bindings / sound / rt5677.txt
1 RT5677 audio CODEC
2
3 This device supports I2C only.
4
5 Required properties:
6
7 - compatible : "realtek,rt5677".
8
9 - reg : The I2C address of the device.
10
11 - interrupts : The CODEC's interrupt output.
12
13 - gpio-controller : Indicates this device is a GPIO controller.
14
15 - #gpio-cells : Should be two. The first cell is the pin number and the
16   second cell is used to specify optional parameters (currently unused).
17
18 Optional properties:
19
20 - realtek,pow-ldo2-gpio : The GPIO that controls the CODEC's POW_LDO2 pin.
21
22 - realtek,in1-differential
23 - realtek,in2-differential
24 - realtek,lout1-differential
25 - realtek,lout2-differential
26 - realtek,lout3-differential
27   Boolean. Indicate MIC1/2 input and LOUT1/2/3 outputs are differential,
28   rather than single-ended.
29
30 Pins on the device (for linking into audio routes):
31
32   * IN1P
33   * IN1N
34   * IN2P
35   * IN2N
36   * MICBIAS1
37   * DMIC1
38   * DMIC2
39   * DMIC3
40   * DMIC4
41   * LOUT1
42   * LOUT2
43   * LOUT3
44
45 Example:
46
47 rt5677 {
48         compatible = "realtek,rt5677";
49         reg = <0x2c>;
50         interrupt-parent = <&gpio>;
51         interrupts = <TEGRA_GPIO(W, 3) GPIO_ACTIVE_HIGH>;
52
53         gpio-controller;
54         #gpio-cells = <2>;
55
56         realtek,pow-ldo2-gpio =
57                 <&gpio TEGRA_GPIO(V, 3) GPIO_ACTIVE_HIGH>;
58         realtek,in1-differential = "true";
59 };