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

On Monday, March 29th, 2021 at 5:39 PM, Paul Cercueil paul@crapouillou.net 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