Device-Tree bindings for Digital microphone (DMIC) codec
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This device support generic PDM digital microphone.
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Required properties:
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- compatible: should be "dmic-codec".
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Optional properties:
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- dmicen-gpios: GPIO specifier for dmic to control start and stop
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- num-channels: Number of microphones on this DAI
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- wakeup-delay-ms: Delay (in ms) after enabling the DMIC
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Example node:
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dmic_codec: dmic@0 {
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compatible = "dmic-codec";
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dmicen-gpios = <&gpio4 3 GPIO_ACTIVE_HIGH>;
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num-channels = <1>;
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wakeup-delay-ms <50>;
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};
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