wlf,wm8903.yaml

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    1 # SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
    2 %YAML 1.2
    3 ---
    4 $id: "http://devicetree.org/schemas/sound/wlf,wm8903.yaml#"
    5 $schema: "http://devicetree.org/meta-schemas/core.yaml#"
    6 
    7 title: WM8903 audio codec
    8 
    9 description: |
   10   This device supports I2C only.
   11   Pins on the device (for linking into audio routes):
   12       * IN1L
   13       * IN1R
   14       * IN2L
   15       * IN2R
   16       * IN3L
   17       * IN3R
   18       * DMICDAT
   19       * HPOUTL
   20       * HPOUTR
   21       * LINEOUTL
   22       * LINEOUTR
   23       * LOP
   24       * LON
   25       * ROP
   26       * RON
   27       * MICBIAS
   28 
   29 maintainers:
   30   - patches@opensource.cirrus.com
   31 
   32 properties:
   33   compatible:
   34     const: wlf,wm8903
   35 
   36   reg:
   37     maxItems: 1
   38 
   39   gpio-controller: true
   40   '#gpio-cells':
   41     const: 2
   42 
   43   interrupts:
   44     maxItems: 1
   45 
   46   micdet-cfg:
   47     $ref: /schemas/types.yaml#/definitions/uint32
   48     default: 0
   49     description: Default register value for R6 (Mic Bias).
   50 
   51   micdet-delay:
   52     $ref: /schemas/types.yaml#/definitions/uint32
   53     default: 100
   54     description: The debounce delay for microphone detection in mS.
   55 
   56   gpio-cfg:
   57     $ref: /schemas/types.yaml#/definitions/uint32-array
   58     description: |
   59       minItems: 5
   60       maxItems: 5
   61       A list of GPIO configuration register values.
   62       If absent, no configuration of these registers is performed.
   63       If any entry has the value 0xffffffff, that GPIO's
   64       configuration will not be modified.
   65 
   66   AVDD-supply:
   67     description: Analog power supply regulator on the AVDD pin.
   68 
   69   CPVDD-supply:
   70     description: Charge pump supply regulator on the CPVDD pin.
   71 
   72   DBVDD-supply:
   73     description: Digital buffer supply regulator for the DBVDD pin.
   74 
   75   DCVDD-supply:
   76     description: Digital core supply regulator for the DCVDD pin.
   77 
   78 
   79 required:
   80   - compatible
   81   - reg
   82   - gpio-controller
   83   - '#gpio-cells'
   84 
   85 additionalProperties: false
   86 
   87 examples:
   88   - |
   89     i2c {
   90       #address-cells = <1>;
   91       #size-cells = <0>;
   92 
   93       wm8903: codec@1a {
   94         compatible = "wlf,wm8903";
   95         reg = <0x1a>;
   96         interrupts = <347>;
   97 
   98         AVDD-supply = <&fooreg_a>;
   99         CPVDD-supply = <&fooreg_b>;
  100         DBVDD-supply = <&fooreg_c>;
  101         DCVDD-supply = <&fooreg_d>;
  102 
  103         gpio-controller;
  104         #gpio-cells = <2>;
  105 
  106         micdet-cfg = <0>;
  107         micdet-delay = <100>;
  108         gpio-cfg = <
  109           0x0600 /* DMIC_LR, output */
  110           0x0680 /* DMIC_DAT, input */
  111           0x0000 /* GPIO, output, low */
  112           0x0200 /* Interrupt, output */
  113           0x01a0 /* BCLK, input, active high */
  114         >;
  115       };
  116     };

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sys/contrib/device-tree/Bindings/sound/wlf,wm8903.yaml