1*4882a593SmuzhiyunTexas Instruments - tlv320aic31xx Codec module 2*4882a593Smuzhiyun 3*4882a593SmuzhiyunThe tlv320aic31xx serial control bus communicates through I2C protocols 4*4882a593Smuzhiyun 5*4882a593SmuzhiyunRequired properties: 6*4882a593Smuzhiyun 7*4882a593Smuzhiyun- compatible - "string" - One of: 8*4882a593Smuzhiyun "ti,tlv320aic310x" - Generic TLV320AIC31xx with mono speaker amp 9*4882a593Smuzhiyun "ti,tlv320aic311x" - Generic TLV320AIC31xx with stereo speaker amp 10*4882a593Smuzhiyun "ti,tlv320aic3100" - TLV320AIC3100 (mono speaker amp, no MiniDSP) 11*4882a593Smuzhiyun "ti,tlv320aic3110" - TLV320AIC3110 (stereo speaker amp, no MiniDSP) 12*4882a593Smuzhiyun "ti,tlv320aic3120" - TLV320AIC3120 (mono speaker amp, MiniDSP) 13*4882a593Smuzhiyun "ti,tlv320aic3111" - TLV320AIC3111 (stereo speaker amp, MiniDSP) 14*4882a593Smuzhiyun "ti,tlv320dac3100" - TLV320DAC3100 (no ADC, mono speaker amp, no MiniDSP) 15*4882a593Smuzhiyun "ti,tlv320dac3101" - TLV320DAC3101 (no ADC, stereo speaker amp, no MiniDSP) 16*4882a593Smuzhiyun 17*4882a593Smuzhiyun- reg - <int> - I2C slave address 18*4882a593Smuzhiyun- HPVDD-supply, SPRVDD-supply, SPLVDD-supply, AVDD-supply, IOVDD-supply, 19*4882a593Smuzhiyun DVDD-supply : power supplies for the device as covered in 20*4882a593Smuzhiyun Documentation/devicetree/bindings/regulator/regulator.txt 21*4882a593Smuzhiyun 22*4882a593Smuzhiyun 23*4882a593SmuzhiyunOptional properties: 24*4882a593Smuzhiyun 25*4882a593Smuzhiyun- reset-gpios - GPIO specification for the active low RESET input. 26*4882a593Smuzhiyun- ai31xx-micbias-vg - MicBias Voltage setting 27*4882a593Smuzhiyun 1 or MICBIAS_2_0V - MICBIAS output is powered to 2.0V 28*4882a593Smuzhiyun 2 or MICBIAS_2_5V - MICBIAS output is powered to 2.5V 29*4882a593Smuzhiyun 3 or MICBIAS_AVDD - MICBIAS output is connected to AVDD 30*4882a593Smuzhiyun If this node is not mentioned or if the value is unknown, then 31*4882a593Smuzhiyun micbias is set to 2.0V. 32*4882a593Smuzhiyun- ai31xx-ocmv - output common-mode voltage setting 33*4882a593Smuzhiyun 0 - 1.35V, 34*4882a593Smuzhiyun 1 - 1.5V, 35*4882a593Smuzhiyun 2 - 1.65V, 36*4882a593Smuzhiyun 3 - 1.8V 37*4882a593Smuzhiyun 38*4882a593SmuzhiyunDeprecated properties: 39*4882a593Smuzhiyun 40*4882a593Smuzhiyun- gpio-reset - gpio pin number used for codec reset 41*4882a593Smuzhiyun 42*4882a593SmuzhiyunCODEC output pins: 43*4882a593Smuzhiyun * HPL 44*4882a593Smuzhiyun * HPR 45*4882a593Smuzhiyun * SPL, devices with stereo speaker amp 46*4882a593Smuzhiyun * SPR, devices with stereo speaker amp 47*4882a593Smuzhiyun * SPK, devices with mono speaker amp 48*4882a593Smuzhiyun * MICBIAS 49*4882a593Smuzhiyun 50*4882a593SmuzhiyunCODEC input pins: 51*4882a593Smuzhiyun * MIC1LP, devices with ADC 52*4882a593Smuzhiyun * MIC1RP, devices with ADC 53*4882a593Smuzhiyun * MIC1LM, devices with ADC 54*4882a593Smuzhiyun * AIN1, devices without ADC 55*4882a593Smuzhiyun * AIN2, devices without ADC 56*4882a593Smuzhiyun 57*4882a593SmuzhiyunThe pins can be used in referring sound node's audio-routing property. 58*4882a593Smuzhiyun 59*4882a593SmuzhiyunExample: 60*4882a593Smuzhiyun#include <dt-bindings/gpio/gpio.h> 61*4882a593Smuzhiyun#include <dt-bindings/sound/tlv320aic31xx-micbias.h> 62*4882a593Smuzhiyun 63*4882a593Smuzhiyuntlv320aic31xx: tlv320aic31xx@18 { 64*4882a593Smuzhiyun compatible = "ti,tlv320aic311x"; 65*4882a593Smuzhiyun reg = <0x18>; 66*4882a593Smuzhiyun 67*4882a593Smuzhiyun ai31xx-micbias-vg = <MICBIAS_OFF>; 68*4882a593Smuzhiyun 69*4882a593Smuzhiyun reset-gpios = <&gpio1 17 GPIO_ACTIVE_LOW>; 70*4882a593Smuzhiyun 71*4882a593Smuzhiyun HPVDD-supply = <®ulator>; 72*4882a593Smuzhiyun SPRVDD-supply = <®ulator>; 73*4882a593Smuzhiyun SPLVDD-supply = <®ulator>; 74*4882a593Smuzhiyun AVDD-supply = <®ulator>; 75*4882a593Smuzhiyun IOVDD-supply = <®ulator>; 76*4882a593Smuzhiyun DVDD-supply = <®ulator>; 77*4882a593Smuzhiyun}; 78