Merge tag 'drm-misc-fixes-2016-10-27' of git://anongit.freedesktop.org/git/drm-misc...

Set of drm core fixes.

Hopefully fixes a bug in MST unplugs in fbdev.

* tag 'drm-misc-fixes-2016-10-27' of git://anongit.freedesktop.org/git/drm-misc:
  drm/dp/mst: Check peer device type before attempting EDID read
  drm/dp/mst: Clear port->pdt when tearing down the i2c adapter
  drm/fb-helper: Keep references for the current set of used connectors
  drm: Don't force all planes to be added to the state due to zpos
  drm/fb-helper: Fix connector ref leak on error
  drm/fb-helper: Don't call dirty callback for untouched clips
  drm: Release reference from blob lookup after replacing property