PCI/PM: Resume device before shutdown

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Some actions during shutdown need device to be in D0 state, such as
MSI shutdown etc, so resume device before shutdown.

Without this patch, a device may not be enumerated after a kexec
because the corresponding bridge is not in D0, so that
configuration space of the device is not accessible.

Signed-off-by: Huang Ying <ying.huang@intel.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
CC: stable@vger.kernel.org		# v3.6+

...

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Huang Ying 2012-10-24 14:54:14 +08:00 • committed by Bjorn Helgaas

parent 90b5c1d7c4

commit 3ff2de9ba1

1 changed files with 2 additions and 10 deletions

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drivers/pci/pci-driver.c

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