[PULL,SRU,Vivid] i915_bpo updates

Hi

This pull request syncs i915_bpo with v4.2-rc8, and migrates Broadwell to use this driver.
The sync fixes booting certain Braswell machines. Broadwell gains a number of bugfixes
by using i915_bpo, and also a fix for a regression found during testing which is
on it's way to stable@.


The following changes since commit 56f11aac4139ca2fd196038835f72696810c847d:

  UBUNTU: Ubuntu-3.19.0-28.30 (2015-08-31 16:10:17 +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 252ceddf0a4336a9f82eb50714b320c3509fe8f3:

  UBUNTU: SAUCE: Migrate Broadwell to i915_bpo. (2015-09-04 16:46:47 +0300)

----------------------------------------------------------------
Ander Conselvan de Oliveira (1):
      UBUNTU: SAUCE: i915_bpo: Set ddi_pll_sel in DP MST path

Chris Wilson (1):
      UBUNTU: SAUCE: i915_bpo: drm/i915: Flag the execlists context object as dirty after every use

Daniel Vetter (1):
      UBUNTU: SAUCE: i915_bpo: drm/i915: Only dither on 6bpc panels

Jani Nikula (1):
      UBUNTU: SAUCE: i915_bpo: Revert "drm/i915: Allow parsing of variable size child device entries from VBT"

Maarten Lankhorst (2):
      UBUNTU: SAUCE: i915_bpo: drm/i915: calculate primary visibility changes instead of calling from set_config
      UBUNTU: SAUCE: i915_bpo: drm/i915: Commit planes on each crtc separately.

Thulasimani,Sivakumar (3):
      UBUNTU: SAUCE: i915_bpo: Revert "drm/i915: Add eDP intermediate frequencies for CHV"
      UBUNTU: SAUCE: i915_bpo: drm/i915: remove HBR2 from chv supported list
      UBUNTU: SAUCE: i915_bpo: drm/i915: Avoid TP3 on CHV

Timo Aaltonen (2):
      Revert "UBUNTU: SAUCE: i915_bpo: drm/i915: Allow parsing of variable size child device entries from VBT, addendum v2"
      UBUNTU: SAUCE: Migrate Broadwell to i915_bpo.

Ville Syrjälä (1):
      UBUNTU: SAUCE: i915_bpo: drm/i915: Don't use link_bw for PLL setup

 drivers/gpu/drm/i915/i915_drv.c |  6 +----
 sound/pci/hda/hda_intel.c       |  1 +
 ubuntu/i915/i915_drv.c          |  4 +++
 ubuntu/i915/intel_atomic.c      | 45 ++++++-------------------------
 ubuntu/i915/intel_bios.c        | 32 +++-------------------
 ubuntu/i915/intel_bios.h        |  4 ---
 ubuntu/i915/intel_ddi.c         | 11 +++-----
 ubuntu/i915/intel_display.c     | 59 +++++++++++------------------------------
 ubuntu/i915/intel_dp.c          | 81 +++++++++++++++++++++++++++++++-------------------------
 ubuntu/i915/intel_dp_mst.c      |  5 ++++
 ubuntu/i915/intel_drv.h         |  1 +
 ubuntu/i915/intel_lrc.c         |  2 ++
 12 files changed, 90 insertions(+), 161 deletions(-)

Applied to the master-next branch of Vivid.