1# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
2%YAML 1.2
3---
4$id: http://devicetree.org/schemas/sound/qcom,wcd938x.yaml#
5$schema: http://devicetree.org/meta-schemas/core.yaml#
6
7title: Bindings for Qualcomm WCD9380/WCD9385 Audio Codec
8
9maintainers:
10  - Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
11
12description: |
13  Qualcomm WCD9380/WCD9385 Codec is a standalone Hi-Fi audio codec IC.
14  It has RX and TX Soundwire slave devices.
15
16properties:
17  compatible:
18    enum:
19      - qcom,wcd9380-codec
20      - qcom,wcd9385-codec
21
22  reset-gpios:
23    description: GPIO spec for reset line to use
24    maxItems: 1
25
26  vdd-buck-supply:
27    description: A reference to the 1.8V buck supply
28
29  vdd-rxtx-supply:
30    description: A reference to the 1.8V rx supply
31
32  vdd-io-supply:
33    description: A reference to the 1.8V I/O supply
34
35  qcom,tx-device:
36    $ref: /schemas/types.yaml#/definitions/phandle-array
37    description: A reference to Soundwire tx device phandle
38
39  qcom,rx-device:
40    $ref: /schemas/types.yaml#/definitions/phandle-array
41    description: A reference to Soundwire rx device phandle
42
43  qcom,micbias1-microvolt:
44    description: micbias1 voltage
45    minimum: 1800000
46    maximum: 2850000
47
48  qcom,micbias2-microvolt:
49    description: micbias2 voltage
50    minimum: 1800000
51    maximum: 2850000
52
53  qcom,micbias3-microvolt:
54    description: micbias3 voltage
55    minimum: 1800000
56    maximum: 2850000
57
58  qcom,micbias4-microvolt:
59    description: micbias4 voltage
60    minimum: 1800000
61    maximum: 2850000
62
63  qcom,hphl-jack-type-normally-closed:
64    description: Indicates that HPHL jack switch type is normally closed
65    type: boolean
66
67  qcom,ground-jack-type-normally-closed:
68    description: Indicates that Headset Ground switch type is normally closed
69    type: boolean
70
71  qcom,mbhc-headset-vthreshold-microvolt:
72    description: Voltage threshold value for headset detection
73    minimum: 0
74    maximum: 2850000
75
76  qcom,mbhc-headphone-vthreshold-microvolt:
77    description: Voltage threshold value for headphone detection
78    minimum: 0
79    maximum: 2850000
80
81  qcom,mbhc-buttons-vthreshold-microvolt:
82    description:
83      Array of 8 Voltage threshold values corresponding to headset
84      button0 - button7
85    minItems: 8
86    maxItems: 8
87
88  '#sound-dai-cells':
89    const: 1
90
91required:
92  - compatible
93  - reset-gpios
94  - qcom,tx-device
95  - qcom,rx-device
96  - qcom,micbias1-microvolt
97  - qcom,micbias2-microvolt
98  - qcom,micbias3-microvolt
99  - qcom,micbias4-microvolt
100  - "#sound-dai-cells"
101
102additionalProperties: false
103
104examples:
105  - |
106    codec {
107        compatible = "qcom,wcd9380-codec";
108        reset-gpios = <&tlmm 32 0>;
109        #sound-dai-cells = <1>;
110        qcom,tx-device = <&wcd938x_tx>;
111        qcom,rx-device = <&wcd938x_rx>;
112        qcom,micbias1-microvolt = <1800000>;
113        qcom,micbias2-microvolt = <1800000>;
114        qcom,micbias3-microvolt = <1800000>;
115        qcom,micbias4-microvolt = <1800000>;
116        qcom,hphl-jack-type-normally-closed;
117        qcom,ground-jack-type-normally-closed;
118        qcom,mbhc-buttons-vthreshold-microvolt = <75000 150000 237000 500000 500000 500000 500000 500000>;
119        qcom,mbhc-headphone-vthreshold-microvolt = <50000>;
120    };
121
122    /* ... */
123
124    soundwire@3210000 {
125        #address-cells = <2>;
126        #size-cells = <0>;
127        reg = <0x03210000 0x2000>;
128        wcd938x_rx: codec@0,4 {
129            compatible = "sdw20217010d00";
130            reg  = <0 4>;
131            qcom,rx-port-mapping = <1 2 3 4 5>;
132        };
133    };
134
135    soundwire@3230000 {
136        #address-cells = <2>;
137        #size-cells = <0>;
138        reg = <0x03230000 0x2000>;
139        wcd938x_tx: codec@0,3 {
140            compatible = "sdw20217010d00";
141            reg  = <0 3>;
142            qcom,tx-port-mapping = <2 3 4 5>;
143        };
144    };
145
146...
147