svn commit: r259376 - releng/10.0/sys/dev/drm2

[Jean-Sebastien Pedron]

Author: dumbbell
Date: Sat Dec 14 01:01:32 2013
New Revision: 259376
URL: http://svnweb.freebsd.org/changeset/base/259376

Log:
  MFC r259237:
  
  drm: Read PCIER_LINK_CAP/PCIER_LINK_CAP2 from the PCI bridge
  
  Before this fix, capabilities were read from vgapci and were incorrect.
  
  Approved by:	re (gjb)

Modified:
  releng/10.0/sys/dev/drm2/drm_pci.c
Directory Properties:
  releng/10.0/   (props changed)

Modified: releng/10.0/sys/dev/drm2/drm_pci.c
==============================================================================
--- releng/10.0/sys/dev/drm2/drm_pci.c	Sat Dec 14 00:59:40 2013	(r259375)
+++ releng/10.0/sys/dev/drm2/drm_pci.c	Sat Dec 14 01:01:32 2013	(r259376)
@@ -134,7 +134,11 @@ int drm_pcie_get_speed_cap_mask(struct d
 	if (!drm_device_is_pcie(dev))
 		return -EINVAL;
 
-	root = device_get_parent(dev->device);
+	root =
+	    device_get_parent( /* pcib             */
+	    device_get_parent( /* `-- pci          */
+	    device_get_parent( /*     `-- vgapci   */
+	    dev->device)));    /*         `-- drmn */
 
 	pos = 0;
 	pci_find_cap(root, PCIY_EXPRESS, &pos);