[PATCH v2 01/37] dt-bindings: display: xlnx: zynqmp-dpsub: Add OF graph ports

[Laurent Pinchart]

The DPSUB doesn't live in isolation, but is connected to the
programmable logic for live inputs and outputs, and also has a
DisplayPort output. Model all those using OF graph.

Signed-off-by: Laurent Pinchart <laurent.pinchart at ideasonboard.com>
Reviewed-by: Rob Herring <robh at kernel.org>
---
 .../display/xlnx/xlnx,zynqmp-dpsub.yaml       | 67 +++++++++++++++++++
 1 file changed, 67 insertions(+)

diff --git a/Documentation/devicetree/bindings/display/xlnx/xlnx,zynqmp-dpsub.yaml b/Documentation/devicetree/bindings/display/xlnx/xlnx,zynqmp-dpsub.yaml
index 10ec78ca1c65..554f9d5809d4 100644
--- a/Documentation/devicetree/bindings/display/xlnx/xlnx,zynqmp-dpsub.yaml
+++ b/Documentation/devicetree/bindings/display/xlnx/xlnx,zynqmp-dpsub.yaml
@@ -117,6 +117,45 @@ properties:
       - const: dp-phy0
       - const: dp-phy1
 
+  ports:
+    $ref: /schemas/graph.yaml#/properties/ports
+    description: |
+      Connections to the programmable logic and the DisplayPort PHYs. Each port
+      shall have a single endpoint.
+
+    properties:
+      port at 0:
+        $ref: /schemas/graph.yaml#/properties/port
+        description: The live video input from the programmable logic
+
+      port at 1:
+        $ref: /schemas/graph.yaml#/properties/port
+        description: The live graphics input from the programmable logic
+
+      port at 2:
+        $ref: /schemas/graph.yaml#/properties/port
+        description: The live audio input from the programmable logic
+
+      port at 3:
+        $ref: /schemas/graph.yaml#/properties/port
+        description: The blended video output to the programmable logic
+
+      port at 4:
+        $ref: /schemas/graph.yaml#/properties/port
+        description: The mixed audio output to the programmable logic
+
+      port at 5:
+        $ref: /schemas/graph.yaml#/properties/port
+        description: The DisplayPort output
+
+    required:
+      - port at 0
+      - port at 1
+      - port at 2
+      - port at 3
+      - port at 4
+      - port at 5
+
 required:
   - compatible
   - reg
@@ -130,6 +169,7 @@ required:
   - dma-names
   - phys
   - phy-names
+  - ports
 
 additionalProperties: false
 
@@ -164,6 +204,33 @@ examples:
                <&psgtr 0 PHY_TYPE_DP 1 3>;
 
         phy-names = "dp-phy0", "dp-phy1";
+
+        ports {
+            #address-cells = <1>;
+            #size-cells = <0>;
+
+            port at 0 {
+                reg = <0>;
+            };
+            port at 1 {
+                reg = <1>;
+            };
+            port at 2 {
+                reg = <2>;
+            };
+            port at 3 {
+                reg = <3>;
+            };
+            port at 4 {
+                reg = <4>;
+            };
+            port at 5 {
+                reg = <5>;
+                dpsub_dp_out: endpoint {
+                    remote-endpoint = <&dp_connector>;
+                };
+            };
+        };
     };
 
 ...
-- 
Regards,

Laurent Pinchart