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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) | |
ef9656b6 | 14 | "ti,tlv320dac3100" - TLV320DAC3100 (no ADC, mono speaker amp, no MiniDSP) |
4e2cc814 | 15 | "ti,tlv320dac3101" - TLV320DAC3101 (no ADC, stereo speaker amp, no MiniDSP) |
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16 | |
17 | - reg - <int> - I2C slave address | |
eb4dd20c AB |
18 | - HPVDD-supply, SPRVDD-supply, SPLVDD-supply, AVDD-supply, IOVDD-supply, |
19 | DVDD-supply : power supplies for the device as covered in | |
20 | Documentation/devicetree/bindings/regulator/regulator.txt | |
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21 | |
22 | ||
23 | Optional properties: | |
24 | ||
f00e0030 | 25 | - reset-gpios - GPIO specification for the active low RESET input. |
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26 | - ai31xx-micbias-vg - MicBias Voltage setting |
27 | 1 or MICBIAS_2_0V - MICBIAS output is powered to 2.0V | |
28 | 2 or MICBIAS_2_5V - MICBIAS output is powered to 2.5V | |
29 | 3 or MICBIAS_AVDD - MICBIAS output is connected to AVDD | |
30 | If this node is not mentioned or if the value is unknown, then | |
31 | micbias is set to 2.0V. | |
e48fdb53 LS |
32 | - ai31xx-ocmv - output common-mode voltage setting |
33 | 0 - 1.35V, | |
34 | 1 - 1.5V, | |
35 | 2 - 1.65V, | |
36 | 3 - 1.8V | |
e00447fa | 37 | |
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38 | Deprecated properties: |
39 | ||
40 | - gpio-reset - gpio pin number used for codec reset | |
41 | ||
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42 | CODEC output pins: |
43 | * HPL | |
44 | * HPR | |
45 | * SPL, devices with stereo speaker amp | |
46 | * SPR, devices with stereo speaker amp | |
47 | * SPK, devices with mono speaker amp | |
48 | * MICBIAS | |
49 | ||
50 | CODEC input pins: | |
ef9656b6 NY |
51 | * MIC1LP, devices with ADC |
52 | * MIC1RP, devices with ADC | |
53 | * MIC1LM, devices with ADC | |
54 | * AIN1, devices without ADC | |
55 | * AIN2, devices without ADC | |
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56 | |
57 | The pins can be used in referring sound node's audio-routing property. | |
58 | ||
59 | Example: | |
f00e0030 | 60 | #include <dt-bindings/gpio/gpio.h> |
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61 | #include <dt-bindings/sound/tlv320aic31xx-micbias.h> |
62 | ||
63 | tlv320aic31xx: tlv320aic31xx@18 { | |
64 | compatible = "ti,tlv320aic311x"; | |
65 | reg = <0x18>; | |
66 | ||
67 | ai31xx-micbias-vg = <MICBIAS_OFF>; | |
68 | ||
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69 | reset-gpios = <&gpio1 17 GPIO_ACTIVE_LOW>; |
70 | ||
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71 | HPVDD-supply = <®ulator>; |
72 | SPRVDD-supply = <®ulator>; | |
73 | SPLVDD-supply = <®ulator>; | |
74 | AVDD-supply = <®ulator>; | |
75 | IOVDD-supply = <®ulator>; | |
76 | DVDD-supply = <®ulator>; | |
77 | }; |