Describe the optional properties for endpoint nodes of port@0
and port@1 of the R-Car VIN driver device tree bindings documentation.

Signed-off-by: Jacopo Mondi <[email protected]>
Acked-by: Niklas Söderlund <[email protected]>
---
 Documentation/devicetree/bindings/media/rcar_vin.txt | 13 ++++++++++++-
 1 file changed, 12 insertions(+), 1 deletion(-)

diff --git a/Documentation/devicetree/bindings/media/rcar_vin.txt 
b/Documentation/devicetree/bindings/media/rcar_vin.txt
index 5c6f2a7..dab3118 100644
--- a/Documentation/devicetree/bindings/media/rcar_vin.txt
+++ b/Documentation/devicetree/bindings/media/rcar_vin.txt
@@ -54,6 +54,16 @@ from local SoC CSI-2 receivers (port1) depending on SoC.
       from external SoC pins described in video-interfaces.txt[1].
       Describing more then one endpoint in port 0 is invalid. Only VIN
       instances that are connected to external pins should have port 0.
+
+      - Optional properties for endpoint nodes of port@0:
+        - hsync-active: active state of the HSYNC signal, 0/1 for LOW/HIGH
+         respectively. Default is active high.
+        - vsync-active: active state of the VSYNC signal, 0/1 for LOW/HIGH
+         respectively. Default is active high.
+
+       If both HSYNC and VSYNC polarities are not specified, embedded
+       synchronization is selected.
+
     - port 1 - sub-nodes describing one or more endpoints connected to
       the VIN from local SoC CSI-2 receivers. The endpoint numbers must
       use the following schema.
@@ -63,6 +73,8 @@ from local SoC CSI-2 receivers (port1) depending on SoC.
         - Endpoint 2 - sub-node describing the endpoint connected to CSI40
         - Endpoint 3 - sub-node describing the endpoint connected to CSI41
 
+      Endpoint nodes of port@1 do not support any optional endpoint property.
+
 Device node example for Gen2 platforms
 --------------------------------------
 
@@ -113,7 +125,6 @@ Board setup example for Gen2 platforms (vin1 composite 
video input)
 
                 vin1ep0: endpoint {
                         remote-endpoint = <&adv7180>;
-                        bus-width = <8>;
                 };
         };
 };
-- 
2.7.4

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