[PATCH] ASoC: dt-bindings: stm32: add missing port property

[Olivier Moysan <olivier.moysan@xxxxxxxxxxx>]

Add missing port property in STM32 SPDIFRX binding.
This will prevent potential warning:
Unevaluated properties are not allowed ('port' was unexpected)

Signed-off-by: Olivier Moysan <olivier.moysan@xxxxxxxxxxx>
---
 Documentation/devicetree/bindings/sound/st,stm32-spdifrx.yaml | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/Documentation/devicetree/bindings/sound/st,stm32-spdifrx.yaml b/Documentation/devicetree/bindings/sound/st,stm32-spdifrx.yaml
index 3dedc81ec12f..56c5738ea4c5 100644
--- a/Documentation/devicetree/bindings/sound/st,stm32-spdifrx.yaml
+++ b/Documentation/devicetree/bindings/sound/st,stm32-spdifrx.yaml
@@ -50,6 +50,10 @@ properties:
   resets:
     maxItems: 1
 
+  port:
+    $ref: audio-graph-port.yaml#
+    unevaluatedProperties: false
+
   access-controllers:
     minItems: 1
     maxItems: 2
-- 
2.25.1