drm/i915: Create helper functions to determine eDP power state

We need to check eDP VDD force and panel on in several places, so
create some simple helper functions to avoid duplicating code.

Signed-off-by: Keith Packard <keithp@keithp.com>
This commit is contained in:
Keith Packard 2011-09-29 15:53:27 -07:00
commit ebf33b1881