Documentation/devicetree/bindings/sound/wlf,wm8731.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/wlf,wm8731.yaml#
   5 $schema: http://devicetree.org/meta-schemas/core.yaml#
   6
   7 title: Wolfson Microelectromics WM8731 audio CODEC
   8
   9 maintainers:
  10   - patches@opensource.cirrus.com
  11
  12 description: |
  13   Wolfson Microelectronics WM8731 audio CODEC
  14
  15   Pins on the device (for linking into audio routes):
  16     * LOUT: Left Channel Line Output
  17     * ROUT: Right Channel Line Output
  18     * LHPOUT: Left Channel Headphone Output
  19     * RHPOUT: Right Channel Headphone Output
  20     * LLINEIN: Left Channel Line Input
  21     * RLINEIN: Right Channel Line Input
  22     * MICIN: Microphone Input
  23
  24 properties:
  25   compatible:
  26     enum:
  27       - wlf,wm8731
  28
  29   reg:
  30     maxItems: 1
  31
  32   "#sound-dai-cells":
  33     const: 0
  34
  35   clocks:
  36     description: Clock provider for MCLK pin.
  37     maxItems: 1
  38
  39   clock-names:
  40     items:
  41       - const: mclk
  42
  43   AVDD-supply:
  44     description: Analog power supply regulator on the AVDD pin.
  45
  46   HPVDD-supply:
  47     description: Headphone power supply regulator on the HPVDD pin.
  48
  49   DBVDD-supply:
  50     description: Digital buffer supply regulator for the DBVDD pin.
  51
  52   DCVDD-supply:
  53     description: Digital core supply regulator for the DCVDD pin.
  54
  55 required:
  56   - reg
  57   - compatible
  58   - AVDD-supply
  59   - HPVDD-supply
  60   - DBVDD-supply
  61   - DCVDD-supply
  62
  63 allOf:
  64   - $ref: dai-common.yaml#
  65   - $ref: /schemas/spi/spi-peripheral-props.yaml#
  66
  67 unevaluatedProperties: false
  68
  69 examples:
  70   - |
  71     spi {
  72         #address-cells = <1>;
  73         #size-cells = <0>;
  74         wm8731_i2c: codec@0 {
  75             compatible = "wlf,wm8731";
  76             reg = <0>;
  77             spi-max-frequency = <12500000>;
  78
  79             AVDD-supply = <&avdd_reg>;
  80             HPVDD-supply = <&hpvdd_reg>;
  81             DCVDD-supply = <&dcvdd_reg>;
  82             DBVDD-supply = <&dbvdd_reg>;
  83         };
  84     };
  85   - |
  86
  87     i2c {
  88         #address-cells = <1>;
  89         #size-cells = <0>;
  90         wm8731_spi: codec@1b {
  91             compatible = "wlf,wm8731";
  92             reg = <0x1b>;
  93
  94             AVDD-supply = <&avdd_reg>;
  95             HPVDD-supply = <&hpvdd_reg>;
  96             DCVDD-supply = <&dcvdd_reg>;
  97             DBVDD-supply = <&dbvdd_reg>;
  98         };
  99     };