@@ -55,6 +55,21 @@ 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 numbering for the device.
+
+Port and endpoint numbering
+---------------------------
+
+Old binding documentation may have omitted explicitly specifying port and
+endpoint numbers. This often applies to devices that have a single port and a
+single endpoint in that port. In this case, the only valid port number for such
+a device is zero. The same applies for devices for which bindings do not
+document endpoint numbering: only zero is a valid endpoint.
Required properties
-------------------
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@linux.intel.com> --- .../devicetree/bindings/media/video-interfaces.txt | 15 +++++++++++++++ 1 file changed, 15 insertions(+)