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Commit 8e8f8aec authored by Paulo Zanoni's avatar Paulo Zanoni Committed by Daniel Vetter
Browse files

drm/i915: don't save/restore LBB on Gen5+ 



Because this PCI config register doesn't exist on Gen5+.

Signed-off-by: default avatarPaulo Zanoni <paulo.r.zanoni@intel.com>
Reviewed-by: default avatarVille Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: default avatarDaniel Vetter <daniel.vetter@ffwll.ch>
parent 9d49c0ef

drivers/gpu/drm/i915/i915_suspend.c

+6 −2
Original line number Diff line number Diff line
@@ -340,7 +340,9 @@ int i915_save_state(struct drm_device *dev) 
	struct drm_i915_private *dev_priv = dev->dev_private;

	int i;



	pci_read_config_byte(dev->pdev, LBB, &dev_priv->regfile.saveLBB);

	if (INTEL_INFO(dev)->gen <= 4)

		pci_read_config_byte(dev->pdev, LBB,

				     &dev_priv->regfile.saveLBB);



	mutex_lock(&dev->struct_mutex);
@@ -390,7 +392,9 @@ int i915_restore_state(struct drm_device *dev) 
	struct drm_i915_private *dev_priv = dev->dev_private;

	int i;



	pci_write_config_byte(dev->pdev, LBB, dev_priv->regfile.saveLBB);

	if (INTEL_INFO(dev)->gen <= 4)

		pci_write_config_byte(dev->pdev, LBB,

				      dev_priv->regfile.saveLBB);



	mutex_lock(&dev->struct_mutex);