projects / deliverable / linux.git / blame
| Commit | Line | Data |
|---|---|---|
| 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 | |
| 16 | ||
| 17 | ||
| 18 | Optional properties: | |
| 19 | ||
| 20 | - gpio-reset - gpio pin number used for codec reset | |
| 21 | - ai31xx-micbias-vg - MicBias Voltage setting | |
| 22 | 1 or MICBIAS_2_0V - MICBIAS output is powered to 2.0V | |
| 23 | 2 or MICBIAS_2_5V - MICBIAS output is powered to 2.5V | |
| 24 | 3 or MICBIAS_AVDD - MICBIAS output is connected to AVDD | |
| 25 | If this node is not mentioned or if the value is unknown, then | |
| 26 | micbias is set to 2.0V. | |
| 27 | - HPVDD-supply, SPRVDD-supply, SPLVDD-supply, AVDD-supply, IOVDD-supply, | |
| 28 | DVDD-supply : power supplies for the device as covered in | |
| 29 | Documentation/devicetree/bindings/regulator/regulator.txt | |
| 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 | }; |