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Diffstat (limited to 'Documentation/devicetree/bindings/sound/rt5640.txt')
| -rw-r--r-- | Documentation/devicetree/bindings/sound/rt5640.txt | 53 |
1 files changed, 53 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/sound/rt5640.txt b/Documentation/devicetree/bindings/sound/rt5640.txt new file mode 100644 index 000000000..bac4d9ac1 --- /dev/null +++ b/Documentation/devicetree/bindings/sound/rt5640.txt @@ -0,0 +1,53 @@ +RT5640/RT5639 audio CODEC + +This device supports I2C only. + +Required properties: + +- compatible : One of "realtek,rt5640" or "realtek,rt5639". + +- reg : The I2C address of the device. + +- interrupts : The CODEC's interrupt output. + +Optional properties: + +- realtek,in1-differential +- realtek,in2-differential + Boolean. Indicate MIC1/2 input are differential, rather than single-ended. + +- realtek,ldo1-en-gpios : The GPIO that controls the CODEC's LDO1_EN pin. + +Pins on the device (for linking into audio routes) for RT5639/RT5640: + + * DMIC1 + * DMIC2 + * MICBIAS1 + * IN1P + * IN1R + * IN2P + * IN2R + * HPOL + * HPOR + * LOUTL + * LOUTR + * SPOLP + * SPOLN + * SPORP + * SPORN + +Additional pins on the device for RT5640: + + * MONOP + * MONON + +Example: + +rt5640 { + compatible = "realtek,rt5640"; + reg = <0x1c>; + interrupt-parent = <&gpio>; + interrupts = <TEGRA_GPIO(W, 3) GPIO_ACTIVE_HIGH>; + realtek,ldo1-en-gpios = + <&gpio TEGRA_GPIO(V, 3) GPIO_ACTIVE_HIGH>; +}; |