Merge tag 'topic/core-stuff-2014-05-05' of git://anongit.freedesktop.org/drm-intel into drm-next

Update pull request with drm core patches. Mostly some polish for the
primary plane stuff and a pile of patches all over from Thierry. Has
survived a few days in drm-intel-nightly without causing ill.

I've frobbed my scripts a bit to also tag my topic branches so that you
have something stable to pull - I've accidentally pushed a bunch more
patches onto this branch before you've taken the old pull request.

* tag 'topic/core-stuff-2014-05-05' of git://anongit.freedesktop.org/drm-intel:
  drm: Make drm_crtc_helper_disable() return void
  drm: Fix indentation of closing brace
  drm/dp: Fix typo in comment
  drm: Fixup flip-work kerneldoc
  drm/fb: Fix typos
  drm/edid: Cleanup kerneldoc
  drm/edid: Drop revision argument for drm_mode_std()
  drm: Try to acquire modeset lock on panic or sysrq
  drm: remove unused argument from drm_open_helper
  drm: Handle ->disable_plane failures correctly
  drm: Simplify fb refcounting rules around ->update_plane
  drm/crtc-helper: gc usless connector loop in disable_unused_functions
  drm/plane_helper: don't disable plane in destroy function
  drm/plane-helper: Fix primary plane scaling check
  drm: make mode_valid callback optional
  drm/edid: Fill PAR in AVI infoframe based on CEA mode list

drivers/gpu/drm/drm_probe_helper.c

@@ -151,7 +151,7 @@ static int drm_helper_probe_single_connector_modes_merge_bits(struct drm_connect
 	drm_mode_validate_flag(connector, mode_flags);
 
 	list_for_each_entry(mode, &connector->modes, head) {
-		if (mode->status == MODE_OK)
+		if (mode->status == MODE_OK && connector_funcs->mode_valid)
 			mode->status = connector_funcs->mode_valid(connector,
 								   mode);
 	}