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drm/i915: Convert resume to atomic.

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Instead of all the ad-hoc updating, duplicate the old state first
before reading out the hw state, then restore it.

intel_display_resume is a new function that duplicates the sw state,
then reads out the hw state, and commits the old state.

intel_display_setup_hw_state now only reads out the atomic state.

Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=90396
Signed-off-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Reviewed-by: Daniel Stone <daniels@collabora.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
This commit is contained in:
Maarten Lankhorst
2015-07-13 16:30:25 +02:00
committed by Daniel Vetter
parent 5c1e342619
commit 043e9bda6b
4 changed files with 60 additions and 24 deletions
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2
drivers/gpu/drm/i915/i915_drv.c
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@@ -741,7 +741,7 @@ static int i915_drm_resume(struct drm_device *dev)
spin_unlock_irq(&dev_priv->irq_lock);
drm_modeset_lock_all(dev);
intel_modeset_setup_hw_state(dev, true);
intel_display_resume(dev);
drm_modeset_unlock_all(dev);
intel_dp_mst_resume(dev);