[PATCH v5 07/21] ASoC: dt-bindings: move LPASS clocks related bindings out of q6afe

[Srinivas Kandagatla]

q6afe (Audio Front End) is one of the DSP service that handles both
LPASS (Low Power Audio SubSystem) Audio ports and LPASS clocks.
As LPASS is a hardwware IP and commonly used by Qualcomm Audio DSP.
In order to allow  multiple DSP frameworks to use these bindings
its best to move it out from the dsp specific bindings.

For compatibility reasons and not breaking which is already working
we still maintain same compatible string "qcom,q6afe-clocks"

Also as part of this change convert these LPASS clocks related bindings
into yaml format.

Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla at linaro.org>
Reviewed-by: Rob Herring <robh at kernel.org>
---
 .../devicetree/bindings/sound/qcom,q6afe.txt  | 23 --------
 .../sound/qcom,q6dsp-lpass-clocks.yaml        | 56 +++++++++++++++++++
 2 files changed, 56 insertions(+), 23 deletions(-)
 create mode 100644 Documentation/devicetree/bindings/sound/qcom,q6dsp-lpass-clocks.yaml

diff --git a/Documentation/devicetree/bindings/sound/qcom,q6afe.txt b/Documentation/devicetree/bindings/sound/qcom,q6afe.txt
index fcf81058504c..bc6b5f1fe4f1 100644
--- a/Documentation/devicetree/bindings/sound/qcom,q6afe.txt
+++ b/Documentation/devicetree/bindings/sound/qcom,q6afe.txt
@@ -12,32 +12,9 @@ used by all apr services. Must contain the following properties.
 		  from DSP.
 		  example "qcom,q6afe"
 
-= 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 at 4 {
 	compatible = "qcom,q6afe";
 	reg = <APR_SVC_AFE>;
-
-	clocks {
-		compatible = "qcom,q6afe-clocks";
-		#clock-cells = <2>;
-	};
 };
diff --git a/Documentation/devicetree/bindings/sound/qcom,q6dsp-lpass-clocks.yaml b/Documentation/devicetree/bindings/sound/qcom,q6dsp-lpass-clocks.yaml
new file mode 100644
index 000000000000..589c3f1e2008
--- /dev/null
+++ b/Documentation/devicetree/bindings/sound/qcom,q6dsp-lpass-clocks.yaml
@@ -0,0 +1,56 @@
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: "http://devicetree.org/schemas/sound/qcom,q6dsp-lpass-clocks.yaml#"
+$schema: "http://devicetree.org/meta-schemas/core.yaml#"
+
+title: Qualcomm DSP LPASS Clock Controller binding
+
+maintainers:
+  - Srinivas Kandagatla <srinivas.kandagatla at linaro.org>
+
+description: |
+  This binding describes the Qualcomm DSP Clock Controller
+
+properties:
+  compatible:
+    enum:
+      - qcom,q6afe-clocks
+
+  reg:
+    maxItems: 1
+
+  '#clock-cells':
+    const: 2
+    description:
+      Clock Id is followed by 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
+
+required:
+  - compatible
+  - reg
+  - "#clock-cells"
+
+additionalProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/soc/qcom,apr.h>
+    #include <dt-bindings/sound/qcom,q6afe.h>
+    apr {
+        #address-cells = <1>;
+        #size-cells = <0>;
+        apr-service at 4 {
+            reg = <APR_SVC_AFE>;
+            #address-cells = <1>;
+            #size-cells = <0>;
+            q6afecc at 2 {
+              compatible = "qcom,q6afe-clocks";
+              reg = <2>;
+              #clock-cells = <2>;
+            };
+        };
+      };
-- 
2.21.0