xref: /freebsd/sys/contrib/device-tree/Bindings/sound/wlf,wm8903.yaml (revision f126890ac5386406dadf7c4cfa9566cbb56537c5) 
1# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
2%YAML 1.2
3---
4$id: http://devicetree.org/schemas/sound/wlf,wm8903.yaml#
5$schema: http://devicetree.org/meta-schemas/core.yaml#
6
7title: WM8903 audio codec
8
9description: |
10  This device supports I2C only.
11  Pins on the device (for linking into audio routes):
12      * IN1L
13      * IN1R
14      * IN2L
15      * IN2R
16      * IN3L
17      * IN3R
18      * DMICDAT
19      * HPOUTL
20      * HPOUTR
21      * LINEOUTL
22      * LINEOUTR
23      * LOP
24      * LON
25      * ROP
26      * RON
27      * MICBIAS
28
29maintainers:
30  - patches@opensource.cirrus.com
31
32properties:
33  compatible:
34    const: wlf,wm8903
35
36  reg:
37    maxItems: 1
38
39  gpio-controller: true
40  '#gpio-cells':
41    const: 2
42
43  interrupts:
44    maxItems: 1
45
46  micdet-cfg:
47    $ref: /schemas/types.yaml#/definitions/uint32
48    default: 0
49    description: Default register value for R6 (Mic Bias).
50
51  micdet-delay:
52    $ref: /schemas/types.yaml#/definitions/uint32
53    default: 100
54    description: The debounce delay for microphone detection in mS.
55
56  gpio-cfg:
57    $ref: /schemas/types.yaml#/definitions/uint32-array
58    description: |
59      minItems: 5
60      maxItems: 5
61      A list of GPIO configuration register values.
62      If absent, no configuration of these registers is performed.
63      If any entry has the value 0xffffffff, that GPIO's
64      configuration will not be modified.
65
66  AVDD-supply:
67    description: Analog power supply regulator on the AVDD pin.
68
69  CPVDD-supply:
70    description: Charge pump supply regulator on the CPVDD pin.
71
72  DBVDD-supply:
73    description: Digital buffer supply regulator for the DBVDD pin.
74
75  DCVDD-supply:
76    description: Digital core supply regulator for the DCVDD pin.
77
78
79required:
80  - compatible
81  - reg
82  - gpio-controller
83  - '#gpio-cells'
84
85additionalProperties: false
86
87examples:
88  - |
89    i2c {
90      #address-cells = <1>;
91      #size-cells = <0>;
92
93      wm8903: codec@1a {
94        compatible = "wlf,wm8903";
95        reg = <0x1a>;
96        interrupts = <347>;
97
98        AVDD-supply = <&fooreg_a>;
99        CPVDD-supply = <&fooreg_b>;
100        DBVDD-supply = <&fooreg_c>;
101        DCVDD-supply = <&fooreg_d>;
102
103        gpio-controller;
104        #gpio-cells = <2>;
105
106        micdet-cfg = <0>;
107        micdet-delay = <100>;
108        gpio-cfg = <
109          0x0600 /* DMIC_LR, output */
110          0x0680 /* DMIC_DAT, input */
111          0x0000 /* GPIO, output, low */
112          0x0200 /* Interrupt, output */
113          0x01a0 /* BCLK, input, active high */
114        >;
115      };
116    };
117