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| -rw-r--r-- | Documentation/devicetree/bindings/sound/dmic.txt | 22 |
1 files changed, 22 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..32e871037 --- /dev/null +++ b/Documentation/devicetree/bindings/sound/dmic.txt @@ -0,0 +1,22 @@ +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 + - modeswitch-delay-ms: Delay (in ms) to complete DMIC mode switch + +Example node: + + dmic_codec: dmic@0 { + compatible = "dmic-codec"; + dmicen-gpios = <&gpio4 3 GPIO_ACTIVE_HIGH>; + num-channels = <1>; + wakeup-delay-ms <50>; + modeswitch-delay-ms <35>; + }; |