Re: [PATCH 4/8] drm/sun4i: crtc: Add a custom crtc atomic_check

2017-12-13 Thread Neil Armstrong
On 13/12/2017 16:33, Maxime Ripard wrote: > We have some restrictions on what the planes and CRTC can provide that are > tied to only one generation of display engines. > > For example, on the first generation, we can only have one YUV plane or one > plane that uses the frontend output. > > Let's

[PATCH 4/8] drm/sun4i: crtc: Add a custom crtc atomic_check

2017-12-13 Thread Maxime Ripard
We have some restrictions on what the planes and CRTC can provide that are tied to only one generation of display engines. For example, on the first generation, we can only have one YUV plane or one plane that uses the frontend output. Let's allow our engines to provide an atomic_check callback t