[Quantal] pull-request: revert i915 backlight patches

Zhang, Xiong Y xiong.y.zhang at intel.com
Tue Sep 25 02:13:42 UTC 2012

Hi, Kamal:

   Please help report this issue to freedesktop.org bugzilla. 
   Or else these commits will be contained in next upstream release.


-----Original Message-----
From: kernel-team-bounces at lists.ubuntu.com [mailto:kernel-team-bounces at lists.ubuntu.com] On Behalf Of Kamal Mostafa
Sent: Tuesday, September 25, 2012 3:00 AM
To: kernel-team at lists.ubuntu.com
Subject: [Quantal] pull-request: revert i915 backlight patches

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.


    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!)



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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