e information that the driver will expect to be present coming from a D1 or D2 state will have been cleared. This patch addes a flag to the pci_dev structure to indicate that devices should not use states D1 or D2, and will set that flag for the affected chipsets. This patch also modifies pci_set_power_state() so that when a device driver tries to set the power state on a device that is downstream from an affected chipset, or on one of the affected devices it only allows state changes to or from D0 & D3. In addition, this patch allows the delay time between D3->D0 to be changed via a quirk. These chipsets also need additional time to change states beyond the normal 10ms. Signed-off-by: Kristen Carlson Accardi Signed-off-by: Greg Kroah-Hartman [Ƴ֛