linux/Documentation/devicetree/bindings/sound/wm8962.txt
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   1WM8962 audio CODEC
   2
   3This device supports I2C only.
   4
   5Required properties:
   6
   7  - compatible : "wlf,wm8962"
   8
   9  - reg : the I2C address of the device.
  10
  11Optional properties:
  12  - spk-mono: This is a boolean property. If present, the SPK_MONO bit
  13    of R51 (Class D Control 2) gets set, indicating that the speaker is
  14    in mono mode.
  15
  16  - mic-cfg : Default register value for R48 (Additional Control 4).
  17    If absent, the default should be the register default.
  18
  19  - gpio-cfg : A list of GPIO configuration register values. The list must
  20    be 6 entries long. If absent, no configuration of these registers is
  21    performed. And note that only the value within [0x0, 0xffff] is valid.
  22    Any other value is regarded as setting the GPIO register by its reset
  23    value 0x0.
  24
  25Example:
  26
  27codec: wm8962@1a {
  28        compatible = "wlf,wm8962";
  29        reg = <0x1a>;
  30
  31        gpio-cfg = <
  32                0x0000 /* 0:Default */
  33                0x0000 /* 1:Default */
  34                0x0013 /* 2:FN_DMICCLK */
  35                0x0000 /* 3:Default */
  36                0x8014 /* 4:FN_DMICCDAT */
  37                0x0000 /* 5:Default */
  38        >;
  39};
  40