[PATCH v2 62/66] dt-bindings: media: sun6i-a31-csi: Add ISP output port

[Paul Kocialkowski]

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 at bootlin.com>
---
 .../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 3cc61866ea89..7952413f98d8 100644
--- a/Documentation/devicetree/bindings/media/allwinner,sun6i-a31-csi.yaml
+++ b/Documentation/devicetree/bindings/media/allwinner,sun6i-a31-csi.yaml
@@ -83,6 +83,20 @@ properties:
 
         additionalProperties: false
 
+      port at 2:
+        $ref: /schemas/graph.yaml#/$defs/port-base
+        description: ISP output port
+
+        properties:
+          reg:
+            const: 2
+
+          endpoint:
+            $ref: video-interfaces.yaml#
+            unevaluatedProperties: false
+
+        additionalProperties: false
+
     anyOf:
       - required:
         - port at 0
-- 
2.34.1