i915: split some DP modesetting code into a separate function

this is just prep work for mst support.

Reviewed-by: Todd Previte <tprevite@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
This commit is contained in:
Dave Airlie 2014-05-02 13:36:43 +10:00
commit 44905a27dd
2 changed files with 14 additions and 5 deletions