Documentation/devicetree/bindings/sound/tlv320aic3x.txt

   1 Texas Instruments - tlv320aic3x Codec module
   2
   3 The tlv320aic3x serial control bus communicates through I2C protocols
   4
   5 Required properties:
   6
   7 - compatible - "string" - One of:
   8     "ti,tlv320aic3x" - Generic TLV320AIC3x device
   9     "ti,tlv320aic32x4" - TLV320AIC32x4
  10     "ti,tlv320aic33" - TLV320AIC33
  11     "ti,tlv320aic3007" - TLV320AIC3007
  12     "ti,tlv320aic3106" - TLV320AIC3106
  13
  14
  15 - reg - <int> -  I2C slave address
  16
  17
  18 Optional properties:
  19
  20 - gpio-reset - gpio pin number used for codec reset
  21 - ai3x-gpio-func - <array of 2 int> - AIC3X_GPIO1 & AIC3X_GPIO2 Functionality
  22 - ai3x-micbias-vg - MicBias Voltage required.
  23         1 - MICBIAS output is powered to 2.0V,
  24         2 - MICBIAS output is powered to 2.5V,
  25         3 - MICBIAS output is connected to AVDD,
  26         If this node is not mentioned or if the value is incorrect, then MicBias
  27         is powered down.
  28 - AVDD-supply, IOVDD-supply, DRVDD-supply, DVDD-supply : power supplies for the
  29   device as covered in Documentation/devicetree/bindings/regulator/regulator.txt
  30
  31 CODEC output pins:
  32   * LLOUT
  33   * RLOUT
  34   * MONO_LOUT
  35   * HPLOUT
  36   * HPROUT
  37   * HPLCOM
  38   * HPRCOM
  39
  40 CODEC input pins:
  41   * MIC3L
  42   * MIC3R
  43   * LINE1L
  44   * LINE2L
  45   * LINE1R
  46   * LINE2R
  47
  48 The pins can be used in referring sound node's audio-routing property.
  49
  50 Example:
  51
  52 tlv320aic3x: tlv320aic3x@1b {
  53         compatible = "ti,tlv320aic3x";
  54         reg = <0x1b>;
  55
  56         AVDD-supply = <&regulator>;
  57         IOVDD-supply = <&regulator>;
  58         DRVDD-supply = <&regulator>;
  59         DVDD-supply = <&regulator>;
  60 };