Changes: o Verification that the framebuffer matches the display mode o Automatic upscaling if the framebuffer resolution is lower than the display mode's o VGA-plane support o HDMI pixel rate is limited to hardware constraints o Error tolerant handling of EDID header-pattern Change-Id: Icbfdf5f37caf99f66847a71f784730aced0826ab Signed-off-by: Nico Huber <nico.huber@secunet.com> Reviewed-on: https://review.coreboot.org/17775 Tested-by: build bot (Jenkins) Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net> Reviewed-by: Patrick Georgi <pgeorgi@google.com>