PCI PM: Do not disable and enable bridges during suspend-resume
authorRafael J. Wysocki <rjw@sisk.pl>
Wed, 4 Feb 2009 01:01:15 +0000 (02:01 +0100)
committerJesse Barnes <jbarnes@virtuousgeek.org>
Thu, 5 Feb 2009 01:21:26 +0000 (17:21 -0800)
commitcbbc2f6b0d438f80831c20124137ea92f0e5149b
treed6742d56e3df1355a39df1c481430211d59f67f1
parent27be54a65c89c4b4aa9b25fc6fba31ffd01a08ca
PCI PM: Do not disable and enable bridges during suspend-resume

It is a mistake to disable and enable PCI bridges and PCI Express
ports during suspend-resume, at least at the time when it is
currently done.  Disabling them may lead to problems with accessing
devices behind them and they should be automatically enabled when
their standard config spaces are restored.  Fix this by not attempting
to disable bridges during suspend and enable them during resume.

Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
Acked-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
drivers/pci/pci-driver.c