Adding upstream version 5.10.209.upstream/5.10.209upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

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>;
+	};