linux/Documentation/devicetree/bindings/sound/tlv320aic3x.txt
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   1Texas Instruments - tlv320aic3x Codec module
   2
   3The tlv320aic3x serial control bus communicates through I2C protocols
   4
   5Required properties:
   6- compatible - "string" -  "ti,tlv320aic3x"
   7- reg - <int> -  I2C slave address
   8
   9
  10Optional properties:
  11
  12- gpio-reset - gpio pin number used for codec reset
  13- ai3x-gpio-func - <array of 2 int> - AIC3X_GPIO1 & AIC3X_GPIO2 Functionality
  14- ai3x-micbias-vg - MicBias Voltage required.
  15        1 - MICBIAS output is powered to 2.0V,
  16        2 - MICBIAS output is powered to 2.5V,
  17        3 - MICBIAS output is connected to AVDD,
  18        If this node is not mentioned or if the value is incorrect, then MicBias
  19        is powered down.
  20
  21Example:
  22
  23tlv320aic3x: tlv320aic3x@1b {
  24        compatible = "ti,tlv320aic3x";
  25        reg = <0x1b>;
  26};
  27