98 lines
2.2 KiB
Plaintext
98 lines
2.2 KiB
Plaintext
Texas Instruments - tlv320aic3x Codec module
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The tlv320aic3x serial control bus communicates through both I2C and SPI bus protocols
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Required properties:
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- compatible - "string" - One of:
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"ti,tlv320aic3x" - Generic TLV320AIC3x device
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"ti,tlv320aic33" - TLV320AIC33
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"ti,tlv320aic3007" - TLV320AIC3007
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"ti,tlv320aic3106" - TLV320AIC3106
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"ti,tlv320aic3104" - TLV320AIC3104
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- reg - <int> - I2C slave address
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Optional properties:
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- reset-gpios - GPIO specification for the active low RESET input.
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- ai3x-gpio-func - <array of 2 int> - AIC3X_GPIO1 & AIC3X_GPIO2 Functionality
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- Not supported on tlv320aic3104
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- ai3x-micbias-vg - MicBias Voltage required.
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1 - MICBIAS output is powered to 2.0V,
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2 - MICBIAS output is powered to 2.5V,
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3 - MICBIAS output is connected to AVDD,
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If this node is not mentioned or if the value is incorrect, then MicBias
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is powered down.
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- ai3x-ocmv - Output Common-Mode Voltage selection:
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0 - 1.35V,
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1 - 1.5V,
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2 - 1.65V,
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3 - 1.8V
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- AVDD-supply, IOVDD-supply, DRVDD-supply, DVDD-supply : power supplies for the
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device as covered in Documentation/devicetree/bindings/regulator/regulator.txt
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Deprecated properties:
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- gpio-reset - gpio pin number used for codec reset
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CODEC output pins:
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* LLOUT
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* RLOUT
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* MONO_LOUT
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* HPLOUT
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* HPROUT
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* HPLCOM
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* HPRCOM
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CODEC input pins for TLV320AIC3104:
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* MIC2L
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* MIC2R
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* LINE1L
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* LINE1R
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CODEC input pins for other compatible codecs:
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* MIC3L
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* MIC3R
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* LINE1L
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* LINE2L
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* LINE1R
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* LINE2R
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The pins can be used in referring sound node's audio-routing property.
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I2C example:
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#include <dt-bindings/gpio/gpio.h>
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tlv320aic3x: tlv320aic3x@1b {
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compatible = "ti,tlv320aic3x";
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reg = <0x1b>;
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reset-gpios = <&gpio1 17 GPIO_ACTIVE_LOW>;
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AVDD-supply = <®ulator>;
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IOVDD-supply = <®ulator>;
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DRVDD-supply = <®ulator>;
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DVDD-supply = <®ulator>;
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};
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SPI example:
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spi0: spi@f0000000 {
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tlv320aic3x: codec@0 {
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compatible = "ti,tlv320aic3x";
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reg = <0>; /* CS number */
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#sound-dai-cells = <0>;
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spi-max-frequency = <1000000>;
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AVDD-supply = <®ulator>;
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IOVDD-supply = <®ulator>;
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DRVDD-supply = <®ulator>;
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DVDD-supply = <®ulator>;
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ai3x-ocmv = <0>;
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};
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};
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