[PATCH 28/35] drm: refcounting for crtc framebuffers

With the prep patch to encapsulate ->set_crtc calls, this is now rather easy. Hooray for inconsistent semantics between ->set_crtc and ->page_flip, where the driver callback is supposed to update the fb pointer, and ->update_plane, where the drm core does the same. Also, since the drm core functio

[PATCH 28/35] drm: refcounting for crtc framebuffers

With the prep patch to encapsulate ->set_crtc calls, this is now rather easy. Hooray for inconsistent semantics between ->set_crtc and ->page_flip, where the driver callback is supposed to update the fb pointer, and ->update_plane, where the drm core does the same. Also, since the drm core functio