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authorMatthew Garrett <mjg59@srcf.ucam.org>2009-03-19 21:35:39 +0000
committerLen Brown <len.brown@intel.com>2009-03-27 22:11:03 -0400
commit74a365b3f354fafc537efa5867deb7a9fadbfe27 (patch)
tree66ebff203807d2ed77e77e1ccc2f71f63e571098 /drivers/gpu/drm/i915/i915_dma.c
parentc60d638e29c780b75b648283a197d0226e3576c3 (diff)
downloadblackbird-op-linux-74a365b3f354fafc537efa5867deb7a9fadbfe27.tar.gz
blackbird-op-linux-74a365b3f354fafc537efa5867deb7a9fadbfe27.zip
ACPI: Populate DIDL before registering ACPI video device on Intel
Intel graphics hardware that implements the ACPI IGD OpRegion spec requires that the list of display devices be populated before any ACPI video methods are called. Detect when this is the case and defer registration until the opregion code calls it. Fixes crashes on HP laptops. http://bugzilla.kernel.org/show_bug.cgi?id=11259 Signed-off-by: Matthew Garrett <mjg@redhat.com> Acked-by: Eric Anholt <eric@anholt.net> Signed-off-by: Len Brown <len.brown@intel.com>
Diffstat (limited to 'drivers/gpu/drm/i915/i915_dma.c')
-rw-r--r--drivers/gpu/drm/i915/i915_dma.c5
1 files changed, 3 insertions, 2 deletions
diff --git a/drivers/gpu/drm/i915/i915_dma.c b/drivers/gpu/drm/i915/i915_dma.c
index 6d21b9e48b89..638686904e06 100644
--- a/drivers/gpu/drm/i915/i915_dma.c
+++ b/drivers/gpu/drm/i915/i915_dma.c
@@ -1144,8 +1144,6 @@ int i915_driver_load(struct drm_device *dev, unsigned long flags)
if (!IS_I945G(dev) && !IS_I945GM(dev))
pci_enable_msi(dev->pdev);
- intel_opregion_init(dev);
-
spin_lock_init(&dev_priv->user_irq_lock);
dev_priv->user_irq_refcount = 0;
@@ -1164,6 +1162,9 @@ int i915_driver_load(struct drm_device *dev, unsigned long flags)
}
}
+ /* Must be done after probing outputs */
+ intel_opregion_init(dev, 0);
+
return 0;
out_iomapfree:
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