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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 - <int> - 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 = <®ulator>;
IOVDD-supply = <®ulator>;
DRVDD-supply = <®ulator>;
DVDD-supply = <®ulator>;
};
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