Re: [PATCH v5 1/2] video: ARM CLCD: Add DT support

[Pawel Moll <pawel.moll@arm.com>]

On Fri, 2014-03-07 at 11:35 +0000, Tomi Valkeinen wrote:
> > ... and this makes me try to get out of its way. In other words, I fully
> > agree with you, but I don't think this applies to this particular patch,
> > as I'm not even trying to represent the display pipeline. The (optional)
> 
> Right, you are not, at the moment. My point was, if the driver is
> extended later to support pipelines, or common panel/encoder drivers,
> you (most likely) need to have similar bindings than the other people use.

No argument here.

> Note that the same DT bindings you add here should also work for the DRM
> driver in the future. So, in fact, the question is extended to: will the
> fbdev 

No, I don't think so. It's a end of line for it, I believe. From my
personal point of view the main goal is to fill the last gap between DT
and non-DT support on one of the Versatile Express boards - CLCD works
fine when booted with ATAGs, doesn't work when booted with DT. It looks
bad.

> or drm driver support common panels/encoders?

I would hope so, yes. VE display pipeline is quite complex (more than I
would hope ;-) so to implement KMS in a proper way (with hotplugging,
bells and whistles) it will have to know more than now. But it's out of
scope for me.

Pawel