[PULL][Vivid SRU] another urgent fix for i915_bpo

[Timo Aaltonen]

	Hi

  This backport fixes an urgent bug on Skylake, where changing between
mirror/extended modes causes a system hang..


The following changes since commit 48daf2e6d3442eb86a3cb8b912e432fa2a3d7804:

  Linux 3.19.8-ckt6 (2015-09-08 15:48:27 +0100)

are available in the git repository at:

  git://kernel.ubuntu.com/tjaalton/ubuntu-vivid.git i915-bpo

for you to fetch changes up to fca8a268c36f223bc923e6443bf51811133c97cb:

  UBUNTU: SAUCE: i915_bpo: drm/i915: Split atomic wm update to pre and
post variants (2015-09-09 11:55:13 +0300)

----------------------------------------------------------------
Ville Syrjälä (1):
      UBUNTU: SAUCE: i915_bpo: drm/i915: Split atomic wm update to pre
and post variants

 ubuntu/i915/intel_display.c | 15 +++++++++++----
 ubuntu/i915/intel_drv.h     |  2 +-
 ubuntu/i915/intel_sprite.c  |  2 +-
 3 files changed, 13 insertions(+), 6 deletions(-)