Re: [PATCH] dt-bindings: display: bridge: Drop requirement on input port for DSI devices

Marek Vasut
2022-04-01T01:22:31Z

On 4/1/22 01:52, Rob Herring wrote:
> On Wed, 23 Mar 2022 16:48:23 +0100, Maxime Ripard wrote:
>> MIPI-DSI devices, if they are controlled through the bus itself, have to
>> be described as a child node of the controller they are attached to.
>>
>> Thus, there's no requirement on the controller having an OF-Graph output
>> port to model the data stream: it's assumed that it would go from the
>> parent to the child.
>>
>> However, some bridges controlled through the DSI bus still require an
>> input OF-Graph port, thus requiring a controller with an OF-Graph output
>> port. This prevents those bridges from being used with the controllers
>> that do not have one without any particular reason to.
>>
>> Let's drop that requirement.
>>
>> Signed-off-by: Maxime Ripard <maxime@cerno.tech>
>> ---
>> .../devicetree/bindings/display/bridge/chipone,icn6211.yaml | 1 -
>> .../devicetree/bindings/display/bridge/toshiba,tc358762.yaml | 1 -
>> 2 files changed, 2 deletions(-)
>>
>
> I tend to agree with port@0 not being needed and really like
> consistency.

The consistent thing to do would be to always use port@0 and OF graph, no ?