[PATCH 03/11] ASoC: dt-bindings: everest,es8316: Document audio graph port

[Cristian Ciocaltea <cristian.ciocaltea@xxxxxxxxxxxxx>]

The ES8316 codec is currently used in conjunction with audio-graph-card
to provide an endpoint for binding with the other side of the audio
link.

This is achieved via the 'port' property, which is not allowed:

  rk3399-rockpro64.dtb: codec@11: Unevaluated properties are not allowed ('port' was unexpected)

Fix the issue by documenting the missing property.

Signed-off-by: Cristian Ciocaltea <cristian.ciocaltea@xxxxxxxxxxxxx>
---
 Documentation/devicetree/bindings/sound/everest,es8316.yaml | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/Documentation/devicetree/bindings/sound/everest,es8316.yaml b/Documentation/devicetree/bindings/sound/everest,es8316.yaml
index d9f8f0c7f6bb..80cd81ecae6f 100644
--- a/Documentation/devicetree/bindings/sound/everest,es8316.yaml
+++ b/Documentation/devicetree/bindings/sound/everest,es8316.yaml
@@ -28,6 +28,10 @@ properties:
     items:
       - const: mclk
 
+  port:
+    $ref: audio-graph-port.yaml#
+    unevaluatedProperties: false
+
   "#sound-dai-cells":
     const: 0
 
-- 
2.39.1