Re: [PATCH] drm: DON'T require each CRTC to have a unique primary plane

[Paul Cercueil <paul@xxxxxxxxxxxxxxx>]

It has two mutually exclusive background planes (same Z level) + one 
overlay plane.

-Paul


Le sam. 27 mars 2021 à 11:24, Simon Ser <contact@xxxxxxxxxxx> a écrit 
:
> On Saturday, March 27th, 2021 at 12:22 PM, Paul Cercueil 
> <paul@xxxxxxxxxxxxxxx> wrote:
>
> >  The ingenic-drm driver has two mutually exclusive primary planes
> >  already; so the fact that a CRTC must have one and only one primary
> >  plane is an invalid assumption.
>
> Why does this driver expose two primary planes, if it only has a 
> single
> CRTC?