Quote:
Originally Posted by NiLuJe
While doing the overlap check on your end certainly makes sense, in terms of choosing which region to feed to encompass everything in a single refresh ioctl, I'd be inclined to say that combining that with a wait_for is overly conservative, and potentially not actually helpful in avoiding EPDC corner-cases  . |
You might have misinterpreted the code excerpt. Waiting is necessary here, because if we write to a region of the framebuffer that's being transmitted to the display, it will lead to a display state that's inconsistent with the framebuffer state.