ASoC: q6afe: dt-bindings: add q6afe clock bindings

q6afe exposes various lpass clocks controls via q6dsp q6afe commands.
This patch adds bindings required for this clock controller.

Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Link: https://lore.kernel.org/r/20200910135708.14842-2-srinivas.kandagatla@linaro.org
Signed-off-by: Mark Brown <broonie@kernel.org>

1 files changed, 23 insertions, 0 deletions

diff --git a/Documentation/devicetree/bindings/sound/qcom,q6afe.txt b/Documentation/devicetree/bindings/sound/qcom,q6afe.txt
index 4916dd6a0896..2d6fb2ea75a0 100644
--- a/Documentation/devicetree/bindings/sound/qcom,q6afe.txt
+++ b/Documentation/devicetree/bindings/sound/qcom,q6afe.txt
@@ -98,6 +98,24 @@ configuration of each dai. Must contain the following properties.
 		0 - MSB
 		1 - LSB
 
+= AFE CLOCKSS
+"clocks" subnode of the AFE node. It represents q6afe clocks
+"clocks" node should have following properties.
+- compatible:
+	Usage: required
+	Value type: <stringlist>
+	Definition: must be "qcom,q6afe-clocks"
+
+- #clock-cells:
+	Usage: required
+	Value type: <u32>
+	Definition: Must be 2. Clock Id followed by
+		below valid clock coupling attributes.
+		1 - for no coupled clock
+		2 - for dividend of the coupled clock
+		3 - for divisor of the coupled clock
+		4 - for inverted and no couple clock
+
 = EXAMPLE
 
 apr-service@4 {
@@ -175,4 +193,9 @@ apr-service@4 {
 			qcom,sd-lines = <1>;
 		};
 	};
+
+	clocks {
+		compatible = "qcom,q6afe-clocks";
+		#clock-cells = <2>;
+	};
 };