1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
2 %YAML 1.2
3 ---
4 $id: http://devicetree.org/schemas/sound/wlf,wm8731.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
6
7 title: Wolfson Microelectromics WM8731 audio CODEC
8
9 maintainers:
10 - patches@opensource.cirrus.com
11
12 description: |
13 Wolfson Microelectronics WM8731 audio CODEC
14
15 Pins on the device (for linking into audio routes):
16 * LOUT: Left Channel Line Output
17 * ROUT: Right Channel Line Output
18 * LHPOUT: Left Channel Headphone Output
19 * RHPOUT: Right Channel Headphone Output
20 * LLINEIN: Left Channel Line Input
21 * RLINEIN: Right Channel Line Input
22 * MICIN: Microphone Input
23
24 properties:
25 compatible:
26 enum:
27 - wlf,wm8731
28
29 reg:
30 maxItems: 1
31
32 "#sound-dai-cells":
33 const: 0
34
35 clocks:
36 description: Clock provider for MCLK pin.
37 maxItems: 1
38
39 clock-names:
40 items:
41 - const: mclk
42
43 AVDD-supply:
44 description: Analog power supply regulator on the AVDD pin.
45
46 HPVDD-supply:
47 description: Headphone power supply regulator on the HPVDD pin.
48
49 DBVDD-supply:
50 description: Digital buffer supply regulator for the DBVDD pin.
51
52 DCVDD-supply:
53 description: Digital core supply regulator for the DCVDD pin.
54
55 required:
56 - reg
57 - compatible
58 - AVDD-supply
59 - HPVDD-supply
60 - DBVDD-supply
61 - DCVDD-supply
62
63 allOf:
64 - $ref: dai-common.yaml#
65 - $ref: /schemas/spi/spi-peripheral-props.yaml#
66
67 unevaluatedProperties: false
68
69 examples:
70 - |
71 spi {
72 #address-cells = <1>;
73 #size-cells = <0>;
74 wm8731_i2c: codec@0 {
75 compatible = "wlf,wm8731";
76 reg = <0>;
77 spi-max-frequency = <12500000>;
78
79 AVDD-supply = <&avdd_reg>;
80 HPVDD-supply = <&hpvdd_reg>;
81 DCVDD-supply = <&dcvdd_reg>;
82 DBVDD-supply = <&dbvdd_reg>;
83 };
84 };
85 - |
86
87 i2c {
88 #address-cells = <1>;
89 #size-cells = <0>;
90 wm8731_spi: codec@1b {
91 compatible = "wlf,wm8731";
92 reg = <0x1b>;
93
94 AVDD-supply = <&avdd_reg>;
95 HPVDD-supply = <&hpvdd_reg>;
96 DCVDD-supply = <&dcvdd_reg>;
97 DBVDD-supply = <&dbvdd_reg>;
98 };
99 };
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