Adding upstream version 4.19.249.upstream/4.19.249

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

1 files changed, 22 insertions, 0 deletions

diff --git a/Documentation/devicetree/bindings/sound/rockchip,rk3399-gru-sound.txt b/Documentation/devicetree/bindings/sound/rockchip,rk3399-gru-sound.txt
new file mode 100644
index 000000000..72d3cf4c2
--- /dev/null
+++ b/Documentation/devicetree/bindings/sound/rockchip,rk3399-gru-sound.txt
@@ -0,0 +1,22 @@
+ROCKCHIP with MAX98357A/RT5514/DA7219 codecs on GRU boards
+
+Required properties:
+- compatible: "rockchip,rk3399-gru-sound"
+- rockchip,cpu: The phandle of the Rockchip I2S controller that's
+  connected to the codecs
+- rockchip,codec: The phandle of the audio codecs
+
+Optional properties:
+- dmic-wakeup-delay-ms : specify delay time (ms) for DMIC ready.
+  If this option is specified, which means it's required dmic need
+  delay for DMIC to ready so that rt5514 can avoid recording before
+  DMIC send valid data
+
+Example:
+
+sound {
+	compatible = "rockchip,rk3399-gru-sound";
+	rockchip,cpu = <&i2s0>;
+	rockchip,codec = <&max98357a &rt5514 &da7219>;
+	dmic-wakeup-delay-ms = <20>;
+};