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
15- reg - <int> -  I2C slave address
16- HPVDD-supply, SPRVDD-supply, SPLVDD-supply, AVDD-supply, IOVDD-supply,
17  DVDD-supply : power supplies for the device as covered in
18  Documentation/devicetree/bindings/regulator/regulator.txt
19
20
21Optional properties:
22
23- gpio-reset - gpio pin number used for codec reset
24- ai31xx-micbias-vg - MicBias Voltage setting
25        1 or MICBIAS_2_0V - MICBIAS output is powered to 2.0V
26        2 or MICBIAS_2_5V - MICBIAS output is powered to 2.5V
27        3 or MICBIAS_AVDD - MICBIAS output is connected to AVDD
28	If this node is not mentioned or if the value is unknown, then
29	micbias	is set to 2.0V.
30
31CODEC output pins:
32  * HPL
33  * HPR
34  * SPL, devices with stereo speaker amp
35  * SPR, devices with stereo speaker amp
36  * SPK, devices with mono speaker amp
37  * MICBIAS
38
39CODEC input pins:
40  * MIC1LP
41  * MIC1RP
42  * MIC1LM
43
44The pins can be used in referring sound node's audio-routing property.
45
46Example:
47#include <dt-bindings/sound/tlv320aic31xx-micbias.h>
48
49tlv320aic31xx: tlv320aic31xx@18 {
50	compatible = "ti,tlv320aic311x";
51	reg = <0x18>;
52
53	ai31xx-micbias-vg = <MICBIAS_OFF>;
54
55	HPVDD-supply = <&regulator>;
56	SPRVDD-supply = <&regulator>;
57	SPLVDD-supply = <&regulator>;
58	AVDD-supply = <&regulator>;
59	IOVDD-supply = <&regulator>;
60	DVDD-supply = <&regulator>;
61};
62