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drm/i915: leave rc6 enabled at suspend time v4

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This allows the system to enter the lowest power mode during system freeze.

v2: delete force wake timer at suspend (Imre)
v3: add GT work suspend function (Imre)
v4: use uncore forcewake reset (Daniel)

Reviewed-by: Imre Deak <imre.deak@intel.com>
Signed-off-by: Kristen Carlson Accardi <kristen@linux.intel.com>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
This commit is contained in:
Jesse Barnes
2014-06-12 08:35:45 -07:00
committed by Daniel Vetter
parent 85e9067933
commit 156c7ca081
5 changed files with 25 additions and 3 deletions
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drivers/gpu/drm/i915/i915_drv.c
+2 -2
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@@ -529,7 +529,7 @@ static int i915_drm_freeze(struct drm_device *dev)
drm_irq_uninstall(dev);
dev_priv->enable_hotplug_processing = false;
intel_disable_gt_powersave(dev);
intel_suspend_gt_powersave(dev);
/*
* Disable CRTCs directly since we want to preserve sw state
@@ -548,8 +548,8 @@ static int i915_drm_freeze(struct drm_device *dev)
i915_save_state(dev);
intel_uncore_forcewake_reset(dev, false);
intel_opregion_fini(dev);
intel_uncore_fini(dev);
console_lock();
intel_fbdev_set_suspend(dev, FBINFO_STATE_SUSPENDED);