Documentation/devicetree/bindings/sound/qcom,wcd938x.yaml

   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
   7 title: Bindings for Qualcomm WCD9380/WCD9385 Audio Codec
   8
   9 maintainers:
  10   - Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
  11
  12 description: |
  13   Qualcomm WCD9380/WCD9385 Codec is a standalone Hi-Fi audio codec IC.
  14   It has RX and TX Soundwire slave devices.
  15
  16 properties:
  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
  91 required:
  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
 102 additionalProperties: false
 103
 104 examples:
 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 ...