PCI: set device wakeup capable flag if platform support is present

When PCI devices are initialized, we check whether they support PCI PM
caps and set the device can_wakeup flag if so.  However, some devices
may have platform provided wakeup events rather than PCI PME signals, so
we need to set can_wakeup in that case too.  Doing so should allow
wakeups from many more devices, especially on cost constrained systems.

Reported-by: Alan Stern <stern@rowland.harvard.edu>
Tested-by: Joseph Chan <JosephChan@via.com.tw>
Acked-by: "Rafael J. Wysocki" <rjw@sisk.pl>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>

1 files changed, 1 insertions, 0 deletions

diff --git a/drivers/pci/probe.c b/drivers/pci/probe.c
index 2ee00962734b..303644614eea 100644
--- a/drivers/pci/probe.c
+++ b/drivers/pci/probe.c
@@ -965,6 +965,7 @@ static void pci_init_capabilities(struct pci_dev *dev)
 
         /* Power Management */
         pci_pm_init(dev);
+        platform_pci_wakeup_init(dev);
 
         /* Vital Product Data */
         pci_vpd_pci22_init(dev);