xref: /linux/Documentation/devicetree/bindings/sound/wlf,wm8994.yaml (revision 24168c5e6dfbdd5b414f048f47f75d64533296ca) 
1# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
2%YAML 1.2
3---
4$id: http://devicetree.org/schemas/sound/wlf,wm8994.yaml#
5$schema: http://devicetree.org/meta-schemas/core.yaml#
6
7title: Wolfson WM1811/WM8994/WM8958 audio codecs
8
9maintainers:
10  - Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
11  - patches@opensource.cirrus.com
12
13description: |
14  These devices support both I2C and SPI (configured with pin strapping on the
15  board).
16
17  Pins on the device (for linking into audio routes):
18  IN1LN, IN1LP, IN2LN, IN2LP:VXRN, IN1RN, IN1RP, IN2RN, IN2RP:VXRP, SPKOUTLP,
19  SPKOUTLN, SPKOUTRP, SPKOUTRN, HPOUT1L, HPOUT1R, HPOUT2P, HPOUT2N, LINEOUT1P,
20  LINEOUT1N, LINEOUT2P, LINEOUT2N.
21
22properties:
23  compatible:
24    enum:
25      - wlf,wm1811
26      - wlf,wm8994
27      - wlf,wm8958
28
29  reg:
30    maxItems: 1
31
32  clocks:
33    minItems: 1
34    maxItems: 2
35
36  clock-names:
37    minItems: 1
38    items:
39      - const: MCLK1
40      - const: MCLK2
41
42  gpio-controller: true
43
44  '#gpio-cells':
45    const: 2
46
47  interrupts:
48    maxItems: 1
49
50  interrupt-controller: true
51
52  '#interrupt-cells':
53    const: 2
54    description:
55      The first cell is the IRQ number. The second cell is the flags, encoded
56      as the trigger masks.
57
58  AVDD1-supply: true
59  AVDD2-supply: true
60  CPVDD-supply: true
61  DBVDD-supply: true
62  DBVDD1-supply: true
63  DBVDD2-supply: true
64  DBVDD3-supply: true
65  DCVDD-supply: true
66  LDO1VDD-supply: true
67  LDO2VDD-supply: true
68  SPKVDD1-supply: true
69  SPKVDD2-supply: true
70
71  '#sound-dai-cells':
72    const: 0
73
74  wlf,gpio-cfg:
75    $ref: /schemas/types.yaml#/definitions/uint32-array
76    maxItems: 11
77    description:
78      A list of GPIO configuration register values. If absent, no configuration
79      of these registers is performed. If any value is over 0xffff then the
80      register will be left as default. If present 11 values must be supplied.
81
82  wlf,micbias-cfg:
83    $ref: /schemas/types.yaml#/definitions/uint32-array
84    maxItems: 2
85    description:
86      Two MICBIAS register values for WM1811 or WM8958.  If absent the register
87      defaults will be used.
88
89  wlf,ldo1ena-gpios:
90    maxItems: 1
91    description:
92      Control of LDO1ENA input to device.
93
94  wlf,ldo2ena-gpios:
95    maxItems: 1
96    description:
97      Control of LDO2ENA input to device.
98
99  wlf,lineout1-se:
100    type: boolean
101    description:
102      LINEOUT1 is in single ended mode.
103
104  wlf,lineout2-se:
105    type: boolean
106    description:
107      INEOUT2 is in single ended mode.
108
109  wlf,lineout1-feedback:
110    type: boolean
111    description:
112      LINEOUT1 has common mode feedback connected.
113
114  wlf,lineout2-feedback:
115    type: boolean
116    description:
117      LINEOUT2 has common mode feedback connected.
118
119  wlf,ldoena-always-driven:
120    type: boolean
121    description:
122      LDOENA is always driven.
123
124  wlf,spkmode-pu:
125    type: boolean
126    description:
127      Enable the internal pull-up resistor on the SPKMODE pin.
128
129  wlf,csnaddr-pd:
130    type: boolean
131    description:
132      Enable the internal pull-down resistor on the CS/ADDR pin.
133
134required:
135  - compatible
136  - reg
137  - AVDD2-supply
138  - CPVDD-supply
139  - SPKVDD1-supply
140  - SPKVDD2-supply
141
142allOf:
143  - $ref: dai-common.yaml#
144  - if:
145      properties:
146        compatible:
147          enum:
148            - wlf,wm1811
149            - wlf,wm8958
150    then:
151      properties:
152        DBVDD-supply: false
153        LDO2VDD-supply: false
154      required:
155        - DBVDD1-supply
156        - DBVDD2-supply
157        - DBVDD3-supply
158    else:
159      properties:
160        DBVDD1-supply: false
161        DBVDD2-supply: false
162        DBVDD3-supply: false
163      required:
164        - DBVDD-supply
165
166unevaluatedProperties: false
167
168examples:
169  - |
170    #include <dt-bindings/gpio/gpio.h>
171
172    i2c {
173        #address-cells = <1>;
174        #size-cells = <0>;
175
176        audio-codec@1a {
177            compatible = "wlf,wm1811";
178            reg = <0x1a>;
179            clocks = <&i2s0 0>;
180            clock-names = "MCLK1";
181
182            AVDD2-supply = <&main_dc_reg>;
183            CPVDD-supply = <&main_dc_reg>;
184            DBVDD1-supply = <&main_dc_reg>;
185            DBVDD2-supply = <&main_dc_reg>;
186            DBVDD3-supply = <&main_dc_reg>;
187            LDO1VDD-supply = <&main_dc_reg>;
188            SPKVDD1-supply = <&main_dc_reg>;
189            SPKVDD2-supply = <&main_dc_reg>;
190
191            wlf,ldo1ena-gpios = <&gpb0 0 GPIO_ACTIVE_HIGH>;
192            wlf,ldo2ena-gpios = <&gpb0 1 GPIO_ACTIVE_HIGH>;
193        };
194    };
195