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| -rw-r--r-- | Documentation/devicetree/bindings/sound/dmic.txt | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/sound/dmic.txt b/Documentation/devicetree/bindings/sound/dmic.txt new file mode 100644 index 000000000..e957b4136 --- /dev/null +++ b/Documentation/devicetree/bindings/sound/dmic.txt @@ -0,0 +1,20 @@ +Device-Tree bindings for Digital microphone (DMIC) codec + +This device support generic PDM digital microphone. + +Required properties: + - compatible: should be "dmic-codec". + +Optional properties: + - dmicen-gpios: GPIO specifier for dmic to control start and stop + - num-channels: Number of microphones on this DAI + - wakeup-delay-ms: Delay (in ms) after enabling the DMIC + +Example node: + + dmic_codec: dmic@0 { + compatible = "dmic-codec"; + dmicen-gpios = <&gpio4 3 GPIO_ACTIVE_HIGH>; + num-channels = <1>; + wakeup-delay-ms <50>; + }; |