1Texas Instruments - tlv320aic31xx Codec module
2
3The tlv320aic31xx serial control bus communicates through I2C protocols
4
5Required properties:
6
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
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
20
21
22Optional properties:
23
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.
31
32CODEC output pins:
33  * HPL
34  * HPR
35  * SPL, devices with stereo speaker amp
36  * SPR, devices with stereo speaker amp
37  * SPK, devices with mono speaker amp
38  * MICBIAS
39
40CODEC input pins:
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
46
47The pins can be used in referring sound node's audio-routing property.
48
49Example:
50#include <dt-bindings/sound/tlv320aic31xx-micbias.h>
51
52tlv320aic31xx: tlv320aic31xx@18 {
53	compatible = "ti,tlv320aic311x";
54	reg = <0x18>;
55
56	ai31xx-micbias-vg = <MICBIAS_OFF>;
57
58	HPVDD-supply = <&regulator>;
59	SPRVDD-supply = <&regulator>;
60	SPLVDD-supply = <&regulator>;
61	AVDD-supply = <&regulator>;
62	IOVDD-supply = <&regulator>;
63	DVDD-supply = <&regulator>;
64};
65