[Quantal] pull-request: revert i915 backlight patches

[Kamal Mostafa]

This set of commit(s) causes black screen on boot issues on some
machines, and breaks backlight controls after suspend/resume on Dell XPS
13.

Bugs:

    BugLink: https://bugs.launchpad.net/bugs/1055665
    BugLink: https://bugs.launchpad.net/bugs/1053269
    BugLink: https://bugs.launchpad.net/bugs/1055231

Please apply this revert to Quantal.

Thanks (and sorry!)

 -Kamal
    

-----------

The following changes since commit 0ac9641dd1b4e607c1d7e8b8da424ac8256900de:

  UBUNTU: [Config] Disable CONFIG_DRM_AST (2012-09-21 11:50:24 -0700)

are available in the git repository at:

  git://kernel.ubuntu.com/kamal/ubuntu-quantal.git backlight-revert

for you to fetch changes up to c149cb4cc47197c41e99a5f67bc6bc1d37bbac4e:

  Revert "drm/i915: pnv has a backlight polarity control bit, too" (2012-09-24 11:44:04 -0700)

----------------------------------------------------------------
Kamal Mostafa (6):
      Revert "drm/i915: don't forget the PCH backlight registers"
      Revert "drm/i915: fix up PCH backlight #define mixup"
      Revert "drm/i915: allow pipe A for lvds on gen4"
      Revert "drm/i915: properly enable the blc controller on the right pipe"
      Revert "drm/i915: clear up backlight #define confusion on gen4+"
      Revert "drm/i915: pnv has a backlight polarity control bit, too"

 drivers/gpu/drm/i915/i915_reg.h    |   57 +++++++++++++-----------------------
 drivers/gpu/drm/i915/intel_drv.h   |    3 +-
 drivers/gpu/drm/i915/intel_lvds.c  |   34 ++++++++++++++++-----
 drivers/gpu/drm/i915/intel_panel.c |   51 +-------------------------------
 4 files changed, 48 insertions(+), 97 deletions(-)

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