[RESEND PATCH v3 4/5] ASoC: dt-bindings: wsa881x: add bindings for port mapping

[Srinivas Kandagatla]

WSA881x SoundWire device ports are statically assigned to master ports
at design time. So add bindings required to specify these mappings!

Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla at linaro.org>
---
 .../devicetree/bindings/sound/qcom,wsa881x.yaml          | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/Documentation/devicetree/bindings/sound/qcom,wsa881x.yaml b/Documentation/devicetree/bindings/sound/qcom,wsa881x.yaml
index ea44d03e58ca..491ce1270cb5 100644
--- a/Documentation/devicetree/bindings/sound/qcom,wsa881x.yaml
+++ b/Documentation/devicetree/bindings/sound/qcom,wsa881x.yaml
@@ -26,6 +26,13 @@ properties:
     description: GPIO spec for Powerdown/Shutdown line to use
     maxItems: 1
 
+  qcom,port-mapping:
+    description: |
+      Specifies static port mapping between slave and master ports.
+      In the order of slave port index.
+    maxItems: 4
+    $ref: /schemas/types.yaml#/definitions/uint32-array
+
   '#thermal-sensor-cells':
     const: 0
 
@@ -54,6 +61,7 @@ examples:
             powerdown-gpios = <&wcdpinctrl 2 0>;
             #thermal-sensor-cells = <0>;
             #sound-dai-cells = <0>;
+            qcom,port-mapping = <1 2 3 7>;
         };
 
         speaker at 0,2 {
@@ -62,6 +70,7 @@ examples:
             powerdown-gpios = <&wcdpinctrl 2 0>;
             #thermal-sensor-cells = <0>;
             #sound-dai-cells = <0>;
+            qcom,port-mapping = <4 5 6 8>;
         };
     };
 
-- 
2.21.0