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   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 ...