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,tlv320aic33" - TLV320AIC33
  10     "ti,tlv320aic3007" - TLV320AIC3007
  11     "ti,tlv320aic3106" - TLV320AIC3106
  12     "ti,tlv320aic3104" - TLV320AIC3104
  13
  14
  15 - reg - <int> -  I2C slave address
  16
  17
  18 Optional properties:
  19
  20 - reset-gpios - GPIO specification for the active low RESET input.
  21 - ai3x-gpio-func - <array of 2 int> - AIC3X_GPIO1 & AIC3X_GPIO2 Functionality
  22                                     - Not supported on tlv320aic3104
  23 - ai3x-micbias-vg - MicBias Voltage required.
  24         1 - MICBIAS output is powered to 2.0V,
  25         2 - MICBIAS output is powered to 2.5V,
  26         3 - MICBIAS output is connected to AVDD,
  27         If this node is not mentioned or if the value is incorrect, then MicBias
  28         is powered down.
  29 - ai3x-ocmv - Output Common-Mode Voltage selection:
  30         0 - 1.35V,
  31         1 - 1.5V,
  32         2 - 1.65V,
  33         3 - 1.8V
  34 - AVDD-supply, IOVDD-supply, DRVDD-supply, DVDD-supply : power supplies for the
  35   device as covered in Documentation/devicetree/bindings/regulator/regulator.txt
  36
  37 Deprecated properties:
  38
  39 - gpio-reset - gpio pin number used for codec reset
  40
  41 CODEC output pins:
  42   * LLOUT
  43   * RLOUT
  44   * MONO_LOUT
  45   * HPLOUT
  46   * HPROUT
  47   * HPLCOM
  48   * HPRCOM
  49
  50 CODEC input pins for TLV320AIC3104:
  51   * MIC2L
  52   * MIC2R
  53   * LINE1L
  54   * LINE1R
  55
  56 CODEC input pins for other compatible codecs:
  57   * MIC3L
  58   * MIC3R
  59   * LINE1L
  60   * LINE2L
  61   * LINE1R
  62   * LINE2R
  63
  64 The pins can be used in referring sound node's audio-routing property.
  65
  66 Example:
  67
  68 #include <dt-bindings/gpio/gpio.h>
  69
  70 tlv320aic3x: tlv320aic3x@1b {
  71         compatible = "ti,tlv320aic3x";
  72         reg = <0x1b>;
  73
  74         reset-gpios = <&gpio1 17 GPIO_ACTIVE_LOW>;
  75
  76         AVDD-supply = <&regulator>;
  77         IOVDD-supply = <&regulator>;
  78         DRVDD-supply = <&regulator>;
  79         DVDD-supply = <&regulator>;
  80 };