Kernel-4.18.0-80.el8_tlv320aic3x

Texas Instruments - tlv320aic3x Codec module

The tlv320aic3x serial control bus communicates through I2C protocols

Required properties:

• compatible - “string” - One of:
  “ti,tlv320aic3x” - Generic TLV320AIC3x device
  “ti,tlv320aic33” - TLV320AIC33
  “ti,tlv320aic3007” - TLV320AIC3007
  “ti,tlv320aic3106” - TLV320AIC3106
  “ti,tlv320aic3104” - TLV320AIC3104

• reg - - I2C slave address

Optional properties:

• reset-gpios - GPIO specification for the active low RESET input.
• ai3x-gpio-func - <array of 2 int> - AIC3X_GPIO1 & AIC3X_GPIO2 Functionality

                - Not supported on tlv320aic3104
  

• ai3x-micbias-vg - MicBias Voltage required.
  1 - MICBIAS output is powered to 2.0V,
  2 - MICBIAS output is powered to 2.5V,
  3 - MICBIAS output is connected to AVDD,
  If this node is not mentioned or if the value is incorrect, then MicBias
  is powered down.
• ai3x-ocmv - Output Common-Mode Voltage selection:
  0 - 1.35V,
  1 - 1.5V,
  2 - 1.65V,
  3 - 1.8V
• AVDD-supply, IOVDD-supply, DRVDD-supply, DVDD-supply : power supplies for the
  device as covered in Documentation/devicetree/bindings/regulator/regulator.txt

Deprecated properties:

• gpio-reset - gpio pin number used for codec reset

CODEC output pins:

• LLOUT
• RLOUT
• MONO_LOUT
• HPLOUT
• HPROUT
• HPLCOM
• HPRCOM

CODEC input pins for TLV320AIC3104:

• MIC2L
• MIC2R
• LINE1L
• LINE1R

CODEC input pins for other compatible codecs:

• MIC3L
• MIC3R
• LINE1L
• LINE2L
• LINE1R
• LINE2R

The pins can be used in referring sound node’s audio-routing property.

Example:

#include <dt-bindings/gpio/gpio.h>

tlv320aic3x: tlv320aic3x@1b {
compatible = “ti,tlv320aic3x”;
reg = <0x1b>;

reset-gpios = <&gpio1 17 GPIO_ACTIVE_LOW>;

AVDD-supply = <&regulator>;
IOVDD-supply = <&regulator>;
DRVDD-supply = <&regulator>;
DVDD-supply = <&regulator>;

};