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e00447fa JS |
1 | Texas Instruments - tlv320aic31xx Codec module |
2 | ||
3 | The tlv320aic31xx serial control bus communicates through I2C protocols | |
4 | ||
5 | Required 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 | |
eb4dd20c AB |
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 | |
e00447fa JS |
19 | |
20 | ||
21 | Optional 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. | |
e00447fa JS |
30 | |
31 | CODEC 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 | ||
39 | CODEC input pins: | |
40 | * MIC1LP | |
41 | * MIC1RP | |
42 | * MIC1LM | |
43 | ||
44 | The pins can be used in referring sound node's audio-routing property. | |
45 | ||
46 | Example: | |
47 | #include <dt-bindings/sound/tlv320aic31xx-micbias.h> | |
48 | ||
49 | tlv320aic31xx: tlv320aic31xx@18 { | |
50 | compatible = "ti,tlv320aic311x"; | |
51 | reg = <0x18>; | |
52 | ||
53 | ai31xx-micbias-vg = <MICBIAS_OFF>; | |
54 | ||
55 | HPVDD-supply = <®ulator>; | |
56 | SPRVDD-supply = <®ulator>; | |
57 | SPLVDD-supply = <®ulator>; | |
58 | AVDD-supply = <®ulator>; | |
59 | IOVDD-supply = <®ulator>; | |
60 | DVDD-supply = <®ulator>; | |
61 | }; |