tree 7f81ae58779e5d402ed6539dbc5eb4d25dba2af9
parent f7257a224ebbc897b21d0020cb2fedc43536068f
author Dave Airlie <airlied@redhat.com> 1407199220 +1000
committer Dave Airlie <airlied@redhat.com> 1407283913 +1000

drm/i915: lock around link status and link training.

We need to take the connection mutex around the link status
check for non-MST case, but also around the MST link training
on short HPDs.

I suspect we actually should have a dpcd lock in the future as
well, that just lock the local copies of dpcd and flags stored
from that.

Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Dave Airlie <airlied@redhat.com>