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Merge tag 'drm-intel-fixes-2016-07-14' of git://anongit.freedesktop.org/drm-intel into drm-fixes

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I've also realized that a pile of hang fixes for kbl landed in next, and
no one thought of backporting it to 4.7 - kbl has lost prelim_hw_support
tagging in 4.7-rc1 already. Mika is prepping a topic branch for those,
will send you a separate pull request since it's quite a bit (but should
be all well restricted to kbl code, so similar to polaris in amdgpu).

* tag 'drm-intel-fixes-2016-07-14' of git://anongit.freedesktop.org/drm-intel:
  drm/i915: Ignore panel type from OpRegion on SKL
  drm/i915: Update ifdeffery for mutex->owner
This commit is contained in:
Dave Airlie 2016-07-15 09:19:14 +10:00
commit 71404e8a88
2 changed files with 12 additions and 1 deletions
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2
drivers/gpu/drm/i915/i915_gem_shrinker.c
View File

@ -40,7 +40,7 @@ static bool mutex_is_locked_by(struct mutex *mutex, struct task_struct *task)
if (!mutex_is_locked(mutex))
return false;
#if defined(CONFIG_SMP) || defined(CONFIG_DEBUG_MUTEXES)
#if defined(CONFIG_DEBUG_MUTEXES) || defined(CONFIG_MUTEX_SPIN_ON_OWNER)
return mutex->owner == task;
#else
/* Since UP may be pre-empted, we cannot assume that we own the lock */

11
drivers/gpu/drm/i915/intel_opregion.c
View File

@ -1038,5 +1038,16 @@ intel_opregion_get_panel_type(struct drm_device *dev)
return -ENODEV;
}
/*
* FIXME On Dell XPS 13 9350 the OpRegion panel type (0) gives us
* low vswing for eDP, whereas the VBT panel type (2) gives us normal
* vswing instead. Low vswing results in some display flickers, so
* let's simply ignore the OpRegion panel type on SKL for now.
*/
if (IS_SKYLAKE(dev)) {
DRM_DEBUG_KMS("Ignoring OpRegion panel type (%d)\n", ret - 1);
return -ENODEV;
}
return ret - 1;
}