drm/bridge: Synopsys DW-HDMI bridge driver for the Ingenic JZ4780 (was Re: Specialising the Synopsys DW-HDMI bridge driver for the Ingenic JZ4780)

[H. Nikolaus Schaller]

Hi Ezequiel,

> Am 20.08.2020 um 00:26 schrieb Ezequiel Garcia <ezequiel at vanguardiasur.com.ar>:
> 
> On Wed, 19 Aug 2020 at 15:50, H. Nikolaus Schaller <hns at goldelico.com> wrote:
>> 
>> Maybe, can you share your rebased tree to clearly identify the
>> subtle differences? Maybe I have broken something by the rebase.
>> 
> 
> Sure.
> 
> Please give this a try and let me know if it works for you.
> 
> I've cleaned and squashed your changes, hopefully
> I've kept the correct authorship for all of them.
> 
> https://gitlab.collabora.com/linux/0day/-/commits/jz4780-drm-hdmi-v5.9-rc1
> 
> This should be enough to get an fbcon, launch weston, etc.
> However, there are few things that still don't look right.
> Seems planes X,Y offset is not working, and also enabling
> a second plane results in both planes going black for good.

Yes, it works!!!

There are some unexpected things related to CONFIG settings on my setup
(maybe missing modules) but for the first time I can see the boot log on the panel.

> 
> This needs some more investigation, but seems at least a good start.

Yes it is!

I can now git diff the code and the CONFIG.

So it seems we have indeed a breakthrough.

Thanks to all who did contribute (even behind the scenes in the DRM subsystem),
Nikolaus