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

From: Maxime Ripard
Date: Mon Mar 29 2021 - 10:08:32 EST


On Sat, Mar 27, 2021 at 11:22:14AM +0000, Paul Cercueil 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.

I mean, no? It's been documented for a while that a CRTC should only
have a single primary, so I'd say that the invalid assumption was that
it was possible to have multiple primary planes for a CRTC.

Since it looks like you have two mutually exclusive planes, just expose
one and be done with it?

Maxime

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