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

[Paul Cercueil]

Le lun. 29 mars 2021 à 15:42, Simon Ser <contact@xxxxxxxxxxx> a écrit 
:
> On Monday, March 29th, 2021 at 5:39 PM, Paul Cercueil 
> <paul@xxxxxxxxxxxxxxx> wrote:
>
> >  Ok, I read that as "all drivers should provide AT LEAST one primary
> >  plane per CRTC", and not as "all drivers should provide ONE AND ONLY
> >  ONE primary plane per CRTC". My bad.
>
> Yeah, it's a little complicated to document, because it's possible for
> a primary plane to be compatible with multiple CRTCs… We tried to
> improve this [1] recently.
>
> [1]: 
> https://dri.freedesktop.org/docs/drm/gpu/drm-kms.html#plane-abstraction

Ok, that is definitely much clearer :)

-Paul