PCI: PCIe portdrv: Simplify suspend and resume

Simplify suspend and resume of the PCI Express port driver.  It no
longer needs to save and restore the standard configuration space of the
device; this is now done by the PCI PM core layer.

This patch is reported to fix the regression tracked as
http://bugzilla.kernel.org/show_bug.cgi?id=12598

Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
Reported-and-tested-by: Parag Warudkar <parag.lkml@gmail.com>
Acked-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>

diff --git a/drivers/pci/pcie/portdrv_pci.c b/drivers/pci/pcie/portdrv_pci.c
index 99a914a027f8530dc3abe923d3edf33d46bd1a3b..f9b874eaeb9f80daea9f7eff884574cf7f749008 100644 (file)
--- a/drivers/pci/pcie/portdrv_pci.c
+++ b/drivers/pci/pcie/portdrv_pci.c
@@ -55,25 +55,13 @@ static int pcie_portdrv_suspend(struct pci_dev *dev, pm_message_t state)
 
 }
 
-static int pcie_portdrv_suspend_late(struct pci_dev *dev, pm_message_t state)
-{
-       return pci_save_state(dev);
-}
-
-static int pcie_portdrv_resume_early(struct pci_dev *dev)
-{
-       return pci_restore_state(dev);
-}
-
 static int pcie_portdrv_resume(struct pci_dev *dev)
 {
-       pcie_portdrv_restore_config(dev);
+       pci_set_master(dev);
        return pcie_port_device_resume(dev);
 }
 #else
 #define pcie_portdrv_suspend NULL
-#define pcie_portdrv_suspend_late NULL
-#define pcie_portdrv_resume_early NULL
 #define pcie_portdrv_resume NULL
 #endif
 
@@ -292,8 +280,6 @@ static struct pci_driver pcie_portdriver = {
        .remove         = pcie_portdrv_remove,
 
        .suspend        = pcie_portdrv_suspend,
-       .suspend_late   = pcie_portdrv_suspend_late,
-       .resume_early   = pcie_portdrv_resume_early,
        .resume         = pcie_portdrv_resume,
 
        .err_handler    = &pcie_portdrv_err_handler,