[PATCH v2 5/7] dt-bindings: sound: qcom,sm8250: allow TDM slot properties

[Prasad Kumpatla]

Allow the standard TDM slot properties in CPU and codec endpoint
nodes.

Some audio backends operate in TDM mode and require the slot
configuration to be described in Devicetree. The common TDM binding
defines dai-tdm-slot-num, dai-tdm-slot-width,
dai-tdm-slot-tx-mask and dai-tdm-slot-rx-mask for this purpose.

Permit these standard properties in endpoint nodes so TDM-capable
links can describe their slot configuration using the common binding.

Signed-off-by: Prasad Kumpatla <prasad.kumpatla@xxxxxxxxxxxxxxxx>
---
 .../bindings/sound/qcom,sm8250.yaml           | 26 +++++++++++++++++++
 1 file changed, 26 insertions(+)

diff --git a/Documentation/devicetree/bindings/sound/qcom,sm8250.yaml b/Documentation/devicetree/bindings/sound/qcom,sm8250.yaml
index 15f38622b98b..c82c6c521f40 100644
--- a/Documentation/devicetree/bindings/sound/qcom,sm8250.yaml
+++ b/Documentation/devicetree/bindings/sound/qcom,sm8250.yaml
@@ -90,6 +90,19 @@ patternProperties:
           sound-dai:
             maxItems: 1
 
+          dai-tdm-slot-num:
+            $ref: /schemas/types.yaml#/definitions/uint32
+            description: Number of slots in use
+
+          dai-tdm-slot-width:
+            $ref: /schemas/types.yaml#/definitions/uint32
+            description: Width, in bits, of each slot
+
+        patternProperties:
+          '^dai-tdm-slot-[rt]x-mask$':
+            $ref: /schemas/types.yaml#/definitions/uint32-array
+            description: Slot mask for active TDM slots
+
       platform:
         description: Holds subnode which indicates platform dai.
         type: object
@@ -109,6 +122,19 @@ patternProperties:
             minItems: 1
             maxItems: 8
 
+          dai-tdm-slot-num:
+            $ref: /schemas/types.yaml#/definitions/uint32
+            description: Number of slots in use
+
+          dai-tdm-slot-width:
+            $ref: /schemas/types.yaml#/definitions/uint32
+            description: Width, in bits, of each slot
+
+        patternProperties:
+          '^dai-tdm-slot-[rt]x-mask$':
+            $ref: /schemas/types.yaml#/definitions/uint32-array
+            description: Slot mask for active TDM slots
+
     required:
       - link-name
       - cpu
-- 
2.34.1