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authorYinghai Lu <yinghai@kernel.org>2011-12-17 18:33:37 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2011-12-18 14:10:16 -0800
commit497f16f21a04060098c0da6ed522fbcafb90c0db (patch)
tree8827d2d1d515dc1ea34d63965bf93e9ee21ae9bc /drivers/gpu/drm
parentab347d94d6515ea9a5be04faccd9b14a319b0a7a (diff)
pci: Fix hotplug of Express Module with pci bridges
I noticed that hotplug of one setup does not work with recent change in pci tree. After checking the bridge conf setup, I noticed that the bridges get assigned but do not get enabled. The reason is the following commit, while simply ignores bridge resources when enabling a pci device: | commit bbef98ab0f019f1b0c25c1acdf1683c68933d41b | Author: Ram Pai <linuxram@us.ibm.com> | Date: Sun Nov 6 10:33:10 2011 +0800 | | PCI: defer enablement of SRIOV BARS |... | NOTE: Note, there is subtle change in the pci_enable_device() API. Any | driver that depends on SRIOV BARS to be enabled in pci_enable_device() | can fail. Put back bridge resource and ROM resource checking to fix the problem. That should fix regression like BIOS does not assign correct resource to bridge. Discussion can be found at: http://www.spinics.net/lists/linux-pci/msg12874.html Signed-off-by: Yinghai Lu <yinghai@kernel.org> Acked-by: Jesse Barnes <jbarnes@virtuousgeek.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'drivers/gpu/drm')
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