xref: /freebsd/sys/contrib/device-tree/Bindings/sound/wlf,wm8731.yaml (revision d5b0e70f7e04d971691517ce1304d86a1e367e2e) 
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
7title: Wolfson Microelectromics WM8731 audio CODEC
8
9maintainers:
10  - patches@opensource.cirrus.com
11
12description: |
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
24properties:
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  spi-max-frequency: true
56
57additionalProperties: false
58
59required:
60  - reg
61  - compatible
62  - AVDD-supply
63  - HPVDD-supply
64  - DBVDD-supply
65  - DCVDD-supply
66
67examples:
68  - |
69    spi {
70        #address-cells = <1>;
71        #size-cells = <0>;
72        wm8731_i2c: codec@0 {
73            compatible = "wlf,wm8731";
74            reg = <0>;
75            spi-max-frequency = <12500000>;
76
77            AVDD-supply = <&avdd_reg>;
78            HPVDD-supply = <&hpvdd_reg>;
79            DCVDD-supply = <&dcvdd_reg>;
80            DBVDD-supply = <&dbvdd_reg>;
81        };
82    };
83  - |
84
85    i2c {
86        #address-cells = <1>;
87        #size-cells = <0>;
88        wm8731_spi: codec@1b {
89            compatible = "wlf,wm8731";
90            reg = <0x1b>;
91
92            AVDD-supply = <&avdd_reg>;
93            HPVDD-supply = <&hpvdd_reg>;
94            DCVDD-supply = <&dcvdd_reg>;
95            DBVDD-supply = <&dbvdd_reg>;
96        };
97    };
98