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PCI PM: Introduce device flag wakeup_prepared

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Introduce a new PCI device flag, wakeup_prepared, to prevent PCI
wake-up preparation code from being executed twice in a row for the
same device and for the same purpose.

Reviewed-by: Matthew Garrett <mjg59@srcf.ucam.org>
Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
This commit is contained in:
Rafael J. Wysocki 2009-09-08 23:14:49 +02:00 • committed by Jesse Barnes
parent df8db91fc3
commit e80bb09d2c
2 changed files with 9 additions and 0 deletions
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include/linux/pci.h
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@ -241,6 +241,7 @@ struct pci_dev {
unsigned int d1_support:1; /* Low power state D1 is supported */
unsigned int d2_support:1; /* Low power state D2 is supported */
unsigned int no_d1d2:1; /* Only allow D0 and D3 */
unsigned int wakeup_prepared:1;
#ifdef CONFIG_PCIEASPM
struct pcie_link_state *link_state; /* ASPM link state. */