[PATCH v3 1/2] dt: bindings: media: Document practices for DT bindings, ports, endpoints

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Port and endpoint numbering has been omitted in DT binding documentation
for a large number of devices. Also common properties the device uses have
been missed in binding documentation. Make it explicit that these things
need to be documented.

Signed-off-by: Sakari Ailus <sakari.ailus@xxxxxxxxxxxxxxx>
---
 Documentation/devicetree/bindings/media/video-interfaces.txt | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/Documentation/devicetree/bindings/media/video-interfaces.txt b/Documentation/devicetree/bindings/media/video-interfaces.txt
index 852041a..bc8f18fb 100644
--- a/Documentation/devicetree/bindings/media/video-interfaces.txt
+++ b/Documentation/devicetree/bindings/media/video-interfaces.txt
@@ -55,6 +55,15 @@ divided into two separate ITU-R BT.656 8-bit busses.  In such case bus-width
 and data-shift properties can be used to assign physical data lines to each
 endpoint node (logical bus).
 
+Documenting bindings for devices
+--------------------------------
+
+All required and optional bindings the device supports shall be explicitly
+documented in device DT binding documentation. This also includes port and
+endpoint nodes for the device, including unit-addresses and reg properties where
+relevant.
+
+Please also see Documentation/devicetree/bindings/graph.txt .
 
 Required properties
 -------------------
-- 
2.7.4

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