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-rw-r--r--Bindings/sound/dmic.txt2
1 files changed, 2 insertions, 0 deletions
diff --git a/Bindings/sound/dmic.txt b/Bindings/sound/dmic.txt
index 54c8ef6498a8..f7bf65611453 100644
--- a/Bindings/sound/dmic.txt
+++ b/Bindings/sound/dmic.txt
@@ -7,10 +7,12 @@ Required properties:
Optional properties:
- dmicen-gpios: GPIO specifier for dmic to control start and stop
+ - num-channels: Number of microphones on this DAI
Example node:
dmic_codec: dmic@0 {
compatible = "dmic-codec";
dmicen-gpios = <&gpio4 3 GPIO_ACTIVE_HIGH>;
+ num-channels = <1>;
};