[Intel-gfx] [PATCH v2 02/20] drm: Don't update plane properties for atomic planes if it stays the same

[Daniel Vetter]

On Tue, Jul 07, 2015 at 12:20:10PM +0200, Maarten Lankhorst wrote:
> Op 07-07-15 om 11:18 schreef Daniel Vetter:
> > On Tue, Jul 07, 2015 at 09:08:13AM +0200, Maarten Lankhorst wrote:
> >> This allows the first atomic call during hw init to be a real modeset,
> >> which is useful for forcing a recalculation.
> > fbcon is optional, you can't rely on anything being done in any specific
> > way. What exactly do you need this for, what's the implications?
> In the hw readout I noticed some warnings when I wasn't setting any mode property in the readout.
> I want the first function to be the modeset, so we have a sane base to commit changes on.
> Ideally this whole function would have a atomic counterpart which does it in one go. :)

Yeah. Otoh as soon as we have atomic modeset working we can replace all
the legacy entry points with atomic helpers, and then even plane_disable
will be a full atomic modeset.

What did fall apart with just touching properties/planes now?
-Daniel
-- 
Daniel Vetter
Software Engineer, Intel Corporation
http://blog.ffwll.ch