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)
16 - reg - <int> - I2C slave address
17 - HPVDD-supply, SPRVDD-supply, SPLVDD-supply, AVDD-supply, IOVDD-supply,
18 DVDD-supply : power supplies for the device as covered in
19 Documentation/devicetree/bindings/regulator/regulator.txt
24 - gpio-reset - gpio pin number used for codec reset
25 - ai31xx-micbias-vg - MicBias Voltage setting
26 1 or MICBIAS_2_0V - MICBIAS output is powered to 2.0V
27 2 or MICBIAS_2_5V - MICBIAS output is powered to 2.5V
28 3 or MICBIAS_AVDD - MICBIAS output is connected to AVDD
29 If this node is not mentioned or if the value is unknown, then
30 micbias is set to 2.0V.
35 * SPL, devices with stereo speaker amp
36 * SPR, devices with stereo speaker amp
37 * SPK, devices with mono speaker amp
41 * MIC1LP, devices with ADC
42 * MIC1RP, devices with ADC
43 * MIC1LM, devices with ADC
44 * AIN1, devices without ADC
45 * AIN2, devices without ADC
47 The pins can be used in referring sound node's audio-routing property.
50 #include <dt-bindings/sound/tlv320aic31xx-micbias.h>
52 tlv320aic31xx: tlv320aic31xx@18 {
53 compatible = "ti,tlv320aic311x";
56 ai31xx-micbias-vg = <MICBIAS_OFF>;
58 HPVDD-supply = <®ulator>;
59 SPRVDD-supply = <®ulator>;
60 SPLVDD-supply = <®ulator>;
61 AVDD-supply = <®ulator>;
62 IOVDD-supply = <®ulator>;
63 DVDD-supply = <®ulator>;