diff --git a/Documentation/devicetree/bindings/sound/qcom,wsa8840.yaml b/Documentation/devicetree/bindings/sound/qcom,wsa8840.yaml
index 22798d22d981..83e0360301e1 100644
--- a/Documentation/devicetree/bindings/sound/qcom,wsa8840.yaml
+++ b/Documentation/devicetree/bindings/sound/qcom,wsa8840.yaml
@@ -32,6 +32,14 @@ properties:
     description: Powerdown/Shutdown line to use (pin SD_N)
     maxItems: 1
 
+  qcom,port-mapping:
+    description: |
+      Specifies static port mapping between slave and master ports.
+      In the order of slave port index.
+    $ref: /schemas/types.yaml#/definitions/uint32-array
+    minItems: 6
+    maxItems: 6
+
   '#sound-dai-cells':
     const: 0