Changes from V5 to V6:
1. The use of a particular EDID data set can now be restricted to a given connector using the syntax edid_firmware=[<connector>:]<edid> as suggested by Thomas Reim.
2. The patches to introduce a module parameter and a quirk to cope with an inverted brightness variable of some i915 graphics adapters are no longer part of this patch series.
Thanks, Carsten.