qcom,wcd938x.yaml

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    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   us-euro-gpios:
   27     description: GPIO spec for swapping gnd and mic segments
   28     maxItems: 1
   29 
   30   vdd-buck-supply:
   31     description: A reference to the 1.8V buck supply
   32 
   33   vdd-rxtx-supply:
   34     description: A reference to the 1.8V rx supply
   35 
   36   vdd-io-supply:
   37     description: A reference to the 1.8V I/O supply
   38 
   39   vdd-mic-bias-supply:
   40     description: A reference to the 3.8V mic bias supply
   41 
   42   qcom,tx-device:
   43     $ref: /schemas/types.yaml#/definitions/phandle-array
   44     description: A reference to Soundwire tx device phandle
   45 
   46   qcom,rx-device:
   47     $ref: /schemas/types.yaml#/definitions/phandle-array
   48     description: A reference to Soundwire rx device phandle
   49 
   50   qcom,micbias1-microvolt:
   51     description: micbias1 voltage
   52     minimum: 1800000
   53     maximum: 2850000
   54 
   55   qcom,micbias2-microvolt:
   56     description: micbias2 voltage
   57     minimum: 1800000
   58     maximum: 2850000
   59 
   60   qcom,micbias3-microvolt:
   61     description: micbias3 voltage
   62     minimum: 1800000
   63     maximum: 2850000
   64 
   65   qcom,micbias4-microvolt:
   66     description: micbias4 voltage
   67     minimum: 1800000
   68     maximum: 2850000
   69 
   70   qcom,hphl-jack-type-normally-closed:
   71     description: Indicates that HPHL jack switch type is normally closed
   72     type: boolean
   73 
   74   qcom,ground-jack-type-normally-closed:
   75     description: Indicates that Headset Ground switch type is normally closed
   76     type: boolean
   77 
   78   qcom,mbhc-headset-vthreshold-microvolt:
   79     description: Voltage threshold value for headset detection
   80     minimum: 0
   81     maximum: 2850000
   82 
   83   qcom,mbhc-headphone-vthreshold-microvolt:
   84     description: Voltage threshold value for headphone detection
   85     minimum: 0
   86     maximum: 2850000
   87 
   88   qcom,mbhc-buttons-vthreshold-microvolt:
   89     description:
   90       Array of 8 Voltage threshold values corresponding to headset
   91       button0 - button7
   92     minItems: 8
   93     maxItems: 8
   94 
   95   '#sound-dai-cells':
   96     const: 1
   97 
   98 required:
   99   - compatible
  100   - reset-gpios
  101   - qcom,tx-device
  102   - qcom,rx-device
  103   - qcom,micbias1-microvolt
  104   - qcom,micbias2-microvolt
  105   - qcom,micbias3-microvolt
  106   - qcom,micbias4-microvolt
  107   - "#sound-dai-cells"
  108 
  109 additionalProperties: false
  110 
  111 examples:
  112   - |
  113     codec {
  114         compatible = "qcom,wcd9380-codec";
  115         reset-gpios = <&tlmm 32 0>;
  116         #sound-dai-cells = <1>;
  117         qcom,tx-device = <&wcd938x_tx>;
  118         qcom,rx-device = <&wcd938x_rx>;
  119         qcom,micbias1-microvolt = <1800000>;
  120         qcom,micbias2-microvolt = <1800000>;
  121         qcom,micbias3-microvolt = <1800000>;
  122         qcom,micbias4-microvolt = <1800000>;
  123         qcom,hphl-jack-type-normally-closed;
  124         qcom,ground-jack-type-normally-closed;
  125         qcom,mbhc-buttons-vthreshold-microvolt = <75000 150000 237000 500000 500000 500000 500000 500000>;
  126         qcom,mbhc-headphone-vthreshold-microvolt = <50000>;
  127     };
  128 
  129     /* ... */
  130 
  131     soundwire@3210000 {
  132         #address-cells = <2>;
  133         #size-cells = <0>;
  134         reg = <0x03210000 0x2000>;
  135         wcd938x_rx: codec@0,4 {
  136             compatible = "sdw20217010d00";
  137             reg  = <0 4>;
  138             qcom,rx-port-mapping = <1 2 3 4 5>;
  139         };
  140     };
  141 
  142     soundwire@3230000 {
  143         #address-cells = <2>;
  144         #size-cells = <0>;
  145         reg = <0x03230000 0x2000>;
  146         wcd938x_tx: codec@0,3 {
  147             compatible = "sdw20217010d00";
  148             reg  = <0 3>;
  149             qcom,tx-port-mapping = <2 3 4 5>;
  150         };
  151     };
  152 
  153 ...

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