[PATCH V7 11/12] Documentation: bridge: Add documentation for ps8622 DT properties

[Ajay kumar]

On Sat, Sep 20, 2014 at 8:57 PM, Javier Martinez Canillas
<javier at dowhile0.org> wrote:
> [adding Kukjin as cc]
>
> Hello Ajay,
>
> On Sat, Sep 20, 2014 at 1:22 PM, Ajay kumar <ajaynumb at gmail.com> wrote:
>>> Generally speaking, I sense that we have different views of how display
>>> devices and drivers are structured. You say "If some XYZ platform wishes
>>> to pick the DT node via a different method, they are always welcome to
>>> do it.". This sounds to me that you see the connections between display
>>> devices as something handled by a platform specific driver.
>>> I, on the other hand, see connections between display devices as common
>>> properties.
>> Well, I am okay with using video ports to describe the relationship
>> between the encoder, bridge and the panel.
>> But, its just that I need to make use of 2 functions when phandle
>> does it using just one function ;)
>> -        panel_node = of_parse_phandle(dev->of_node, "panel", 0)
>> +       endpoint = of_graph_get_next_endpoint(dev->of_node, NULL);
>> +       if (!endpoint)
>> +               return -EPROBE_DEFER;
>> +
>> +       panel_node = of_graph_get_remote_port_parent(endpoint);
>> +       if (!panel_node)
>> +               return -EPROBE_DEFER;
>>
>>
>> If nobody else has objections over using of_graph functions instead
>> of phandles, I can respin this patchset by making use of video ports.
>
> I certainly have no objections about re-using the video
> ports/endpoints DT bindings for the bridges but just wanted to point
> out that Kukjin has already merged on his tree the DTS changes for
> display on Snow and Peach Pit using the current binding and also sent
> the pull request [0] to ARM SoC maintainers since he probably was
> expecting this series to make ti for 3.18. So that should be handled
> somehow.
Kukjin,
Can you do something about this?
Or, I shall make video-port changes on top of whatever gets merged?

Ajay
> Tomi,
>
> I see that Documentation/devicetree/bindings/video/ti,omap-dss.txt
> mentions that the Video Ports binding documentation is in
> Documentation/devicetree/bindings/video/video-ports.txt but I don't
> see that this file exists in the kernel [1]. I see though that is was
> included on your series adding DSS DT support [2].
>
> Do you know what happened with this file?
>
> Best regards,
> Javier
>
> [0]: https://www.mail-archive.com/linux-samsung-soc@vger.kernel.org/msg36681.html
> [1]: https://git.kernel.org/cgit/linux/kernel/git/next/linux-next.git/tree/Documentation/devicetree/bindings/video
> [2]: http://lists.infradead.org/pipermail/linux-arm-kernel/2014-January/227088.html
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