drm/i915: Cache LVDS EDID

We assume that the panel is permenantly connected and that the EDID data
is consistent from boot, so simply cache the whole EDID for the panel.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
This commit is contained in:
Chris Wilson 2010-09-16 23:05:10 +01:00
commit 219adae138