[Raring][PULL] drm/i915: quirk no PCH_PWM_ENABLE for Dell XPS13 backlight

[Kamal Mostafa]

Please pull this i915 quirk patch to fix the recent Dell XPS 13 brightness
control regression:

    BugLink: https://bugzilla.kernel.org/show_bug.cgi?id=47941
    BugLink: https://bugs.launchpad.net/bugs/1163720
    BugLink: https://bugs.launchpad.net/bugs/1162026

This fix only affects Dell XPS 13 models (Sandy Bridge and Ivy Bridge).

I have posted this patch to the bugzilla bug (linked above, comment #69), and
will submit it formally upstream pending reaction from upstream users and the
i915 maintainers there.  Since LP: #1163720 is a regression in Raring, I would
like to have it applied as SAUCE in the interim.

Thanks,

 -Kamal

-------- >8 ----------------------------------------------------

The following changes since commit 32c4f47c42bcbab2fd829365f4715cfe04ba93cf:

  UBUNTU: [Config] Disable CONFIG_PARPORT_PC_FIFO (2013-04-09 09:45:30 -0700)

are available in the git repository at:

  git://kernel.ubuntu.com/kamal/ubuntu-raring.git dellxps13-backlight

for you to fetch changes up to eb6ab05ed9e43eccb5aaed313a67c87e099d7b33:

  UBUNTU: SAUCE: drm/i915: quirk no PCH_PWM_ENABLE for Dell XPS13 backlight (2013-04-09 10:14:28 -0700)

----------------------------------------------------------------
Kamal Mostafa (1):
      UBUNTU: SAUCE: drm/i915: quirk no PCH_PWM_ENABLE for Dell XPS13 backlight

 drivers/gpu/drm/i915/i915_drv.h      |    1 +
 drivers/gpu/drm/i915/intel_display.c |   15 +++++++++++++++
 drivers/gpu/drm/i915/intel_panel.c   |    3 ++-
 3 files changed, 18 insertions(+), 1 deletion(-)