Introduce DrmPipeline
Split out of !632 (closed). With DrmPipeline that contains all the modesetting and presentation bits it will be far easier to test crtc and connector combinations, make use overlay planes, cloning and tiled displays.
Split out of !632 (closed). With DrmPipeline that contains all the modesetting and presentation bits it will be far easier to test crtc and connector combinations, make use overlay planes, cloning and tiled displays.