1 Texas Instruments - tlv320aic31xx Codec module
3 The tlv320aic31xx serial control bus communicates through I2C protocols
7 - compatible - "string" - One of:
8 "ti,tlv320aic310x" - Generic TLV320AIC31xx with mono speaker amp
9 "ti,tlv320aic311x" - Generic TLV320AIC31xx with stereo speaker amp
10 "ti,tlv320aic3100" - TLV320AIC3100 (mono speaker amp, no MiniDSP)
11 "ti,tlv320aic3110" - TLV320AIC3110 (stereo speaker amp, no MiniDSP)
12 "ti,tlv320aic3120" - TLV320AIC3120 (mono speaker amp, MiniDSP)
13 "ti,tlv320aic3111" - TLV320AIC3111 (stereo speaker amp, MiniDSP)
14 "ti,tlv320dac3100" - TLV320DAC3100 (no ADC, mono speaker amp, no MiniDSP)
15 "ti,tlv320dac3101" - TLV320DAC3101 (no ADC, stereo speaker amp, no MiniDSP)
17 - reg - <int> - I2C slave address
18 - HPVDD-supply, SPRVDD-supply, SPLVDD-supply, AVDD-supply, IOVDD-supply,
19 DVDD-supply : power supplies for the device as covered in
20 Documentation/devicetree/bindings/regulator/regulator.txt
25 - reset-gpios - GPIO specification for the active low RESET input.
26 - ai31xx-micbias-vg - MicBias Voltage setting
27 1 or MICBIAS_2_0V - MICBIAS output is powered to 2.0V
28 2 or MICBIAS_2_5V - MICBIAS output is powered to 2.5V
29 3 or MICBIAS_AVDD - MICBIAS output is connected to AVDD
30 If this node is not mentioned or if the value is unknown, then
31 micbias is set to 2.0V.
32 - ai31xx-ocmv - output common-mode voltage setting
38 Deprecated properties:
40 - gpio-reset - gpio pin number used for codec reset
45 * SPL, devices with stereo speaker amp
46 * SPR, devices with stereo speaker amp
47 * SPK, devices with mono speaker amp
51 * MIC1LP, devices with ADC
52 * MIC1RP, devices with ADC
53 * MIC1LM, devices with ADC
54 * AIN1, devices without ADC
55 * AIN2, devices without ADC
57 The pins can be used in referring sound node's audio-routing property.
60 #include <dt-bindings/gpio/gpio.h>
61 #include <dt-bindings/sound/tlv320aic31xx.h>
63 tlv320aic31xx: tlv320aic31xx@18 {
64 compatible = "ti,tlv320aic311x";
67 ai31xx-micbias-vg = <MICBIAS_OFF>;
69 reset-gpios = <&gpio1 17 GPIO_ACTIVE_LOW>;
71 HPVDD-supply = <®ulator>;
72 SPRVDD-supply = <®ulator>;
73 SPLVDD-supply = <®ulator>;
74 AVDD-supply = <®ulator>;
75 IOVDD-supply = <®ulator>;
76 DVDD-supply = <®ulator>;