Merge branch 'drm-intel-fixes' of git://people.freedesktop.org/~danvet/drm-intel...

Daniel writes:
As promised a stash of (mostly) fixes. Two pieces of non-fixes included:
- A notch more gtt refactoring from Ben, beating to death with igt in our
  nightly testing.
- Support for display display-less server chips (again from Ben). New hw
  support which is only likely to break itself ;-)

Otherwise just tons of fixes:
- hpd irq storm mitigation from Egbert Eich. Your -next tree already has
  the infrastructure, this here just supplies the logic.
- sdvo hw state check fix from Egbert Eich
- fb cb tune settings for the pch pll clocks on cpt/ppt
- "Bring a bigger gun" coherence workaround for multi-threade, mulit-core
  & thrashing tiled gtt cpu access from Chris.
- Update haswell mPHY code.
- l3$ caching for context objects on ivb/hsw (Chris).
- dp aux refclock fix for haswell (Jani)
- moar overclocking fixes for snb/ivb (Ben)
- ecobits ppgtt pte caching control fixes from Ville
- fence stride check fixes and limit improvements (Ville)
- fix up crtc force restoring, potentially resulting in tons of hw state
  check WARNs
- OOPS fix for NULL derefencing of fb pointers when force-restoring a crtc
  when other crtcs are disabled and the force-restored crtc is _not_ the
  first one.
- Fix pfit disabling on gen2/3.
- Haswell ring freq scaling fixes (Chris).
- backlight init/teardown fix (failed eDP init killed the lvds backlight)
  from Jani
- cpt/ppt fdi polarity fixes from Paulo (should help a lot of the FDI link
  train failures).
- And a bunch of smaller things all over.
* 'drm-intel-fixes' of git://people.freedesktop.org/~danvet/drm-intel: (56 commits)
  drm/i915: fix bpc vs. bpp confusion in intel_crtc_compute_config
  drm/i915: move cpu_transcoder to the pipe configuration
  drm/i915: preserve the PBC bits of TRANS_CHICKEN2
  drm/i915: set CPT FDI RX polarity bits based on VBT
  drm/i915: Add Reenable Timer to turn Hotplug Detection back on (v4)
  drm/i915: Disable HPD interrupt on pin when irq storm is detected (v3)
  drm/i915: Mask out the HPD irq bits before setting them individually.
  drm/i915: (re)init HPD interrupt storm statistics
  drm/i915: Add HPD IRQ storm detection (v5)
  drm/i915: WARN when LPT-LP is not paired with ULT CPU
  drm/i915: don't intel_crt_init on any ULT machines
  drm/i915: remove comment about IVB link training from intel_pm.c
  drm/i915: VLV doesn't have LLC
  drm/i915: Scale ring, rather than ia, frequency on Haswell
  drm/i915: shorten debugfs output simple attributes
  drm/i915: Fixup pfit disabling for gen2/3
  drm/i915: Fixup Oops in the pipe config computation
  drm/i915: ensure single initialization and cleanup of backlight device
  drm/i915: don't touch the PF regs if the power well is down
  drm/i915: add intel_using_power_well
  ...

diff --cc drivers/gpu/drm/i915/intel_crt.c
Simple merge

diff --cc drivers/gpu/drm/i915/intel_dp.c
Simple merge