Describe the optional endpoint 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 <jacopo+renesas@xxxxxxxxxx>
---
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 a19517e1..c53ce4e 100644
--- a/Documentation/devicetree/bindings/media/rcar_vin.txt
+++ b/Documentation/devicetree/bindings/media/rcar_vin.txt
@@ -53,6 +53,16 @@ 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.
@@ -62,6 +72,8 @@ 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
--------------------------------------
@@ -112,7 +124,6 @@ Board setup example for Gen2 platforms (vin1 composite video input)
vin1ep0: endpoint {
remote-endpoint = <&adv7180>;
- bus-width = <8>;
};
};
};
--
2.7.4
