[Intel-gfx] [PATCH 0/7] drm/i915: fbdev mode restoration improvements v2

[ville.syrjala at linux.intel.com]

Another attempt at restoring the fbdev mode.

Changes from v1:
- Cursors and sprites are disabled permanently (well, until someone
  explicitly re-enabls them). This was actually already the case for
  the old video overlay.
- Since the disabling is now permanent, all extra planes can be
  disabled before the crtc modeset/set_base is performed so there should
  be no extra blinking of the planes

I still left the new fbdev_restore_mode hook in place because I was too
lazy to figure out if I could just disable planes/cursors from drm_fb_helper
directly (i915 would be fine, but other drivers could have issues with it),
and even with i915 we still have to disable the old video overlay, which is
driven via some custom API, and hence can't be disabled from the common code.