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drm/vmwgfx: Fix hibernation device reset 

The device would not reset properly when resuming from hibernation.

Signed-off-by: Thomas Hellstrom <thellstrom@vmware.com>
Reviewed-by: Brian Paul <brianp@vmware.com>
Reviewed-by: Dmitry Torokhov <dtor@vmware.com>
Cc: stable@vger.kernel.org
Cc: linux-graphics-maintainer@vmware.com
Signed-off-by: Dave Airlie <airlied@redhat.com>
This commit is contained in:
Thomas Hellstrom 2012-11-09 10:05:57 +01:00 committed by Dave Airlie
parent 4a48ed2334
commit 95e8f6a219
1 changed files with 5 additions and 0 deletions
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5
drivers/gpu/drm/vmwgfx/vmwgfx_drv.c
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@ -1098,6 +1098,11 @@ static void vmw_pm_complete(struct device *kdev)
struct drm_device *dev = pci_get_drvdata(pdev);
struct vmw_private *dev_priv = vmw_priv(dev);
mutex_lock(&dev_priv->hw_mutex);
vmw_write(dev_priv, SVGA_REG_ID, SVGA_ID_2);
(void) vmw_read(dev_priv, SVGA_REG_ID);
mutex_unlock(&dev_priv->hw_mutex);
/**
* Reclaim 3d reference held by fbdev and potentially
* start fifo.