[PATCH v3 2/4] dt-bindings: media: sun6i-a31-csi: Add ISP output port

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Some Allwinner devices come with an Image Signal Processor (ISP) that
allows processing camera data to produce good-looking images,
especially from raw bayer representations.

The ISP does not have a dedicated capture path: it is fed directly by
one of the CSI controllers, which can be selected at run-time.

Represent this possibility as a graph connection between the CSI
controller and the ISP in the device-tree bindings.

Signed-off-by: Paul Kocialkowski <paul.kocialkowski@xxxxxxxxxxx>
---
 .../bindings/media/allwinner,sun6i-a31-csi.yaml    | 14 ++++++++++++++
 1 file changed, 14 insertions(+)

diff --git a/Documentation/devicetree/bindings/media/allwinner,sun6i-a31-csi.yaml b/Documentation/devicetree/bindings/media/allwinner,sun6i-a31-csi.yaml
index 53aa6dbe8e2c..1b41a6008195 100644
--- a/Documentation/devicetree/bindings/media/allwinner,sun6i-a31-csi.yaml
+++ b/Documentation/devicetree/bindings/media/allwinner,sun6i-a31-csi.yaml
@@ -87,6 +87,20 @@ properties:
 
         additionalProperties: false
 
+      port@2:
+        $ref: /schemas/graph.yaml#/$defs/port-base
+        description: ISP output port
+
+        properties:
+          reg:
+            const: 2
+
+          endpoint:
+            $ref: /schemas/graph.yaml#/$defs/endpoint-base
+            unevaluatedProperties: false
+
+        additionalProperties: false
+
     anyOf:
       - required:
           - port@0
-- 
2.35.2





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