virtio-pci: S3 support
There's no difference in supporting S3 and S4 for virtio devices: the
vqs have to be re-created as the device has to be assumed to be reset at
restore-time. Since S4 already handles this situation, we can directly
use the same code and callbacks for S3 support.
Signed-off-by: Amit Shah <amit.shah@redhat.com>
diff --git a/drivers/virtio/virtio_pci.c b/drivers/virtio/virtio_pci.c
index 982d6c9..0fa4f85 100644
--- a/drivers/virtio/virtio_pci.c
+++ b/drivers/virtio/virtio_pci.c
@@ -720,24 +720,6 @@
}
#ifdef CONFIG_PM
-static int virtio_pci_suspend(struct device *dev)
-{
- struct pci_dev *pci_dev = to_pci_dev(dev);
-
- pci_save_state(pci_dev);
- pci_set_power_state(pci_dev, PCI_D3hot);
- return 0;
-}
-
-static int virtio_pci_resume(struct device *dev)
-{
- struct pci_dev *pci_dev = to_pci_dev(dev);
-
- pci_restore_state(pci_dev);
- pci_set_power_state(pci_dev, PCI_D0);
- return 0;
-}
-
static int virtio_pci_freeze(struct device *dev)
{
struct pci_dev *pci_dev = to_pci_dev(dev);
@@ -786,12 +768,12 @@
}
static const struct dev_pm_ops virtio_pci_pm_ops = {
- .suspend = virtio_pci_suspend,
- .resume = virtio_pci_resume,
+ .suspend = virtio_pci_freeze,
+ .resume = virtio_pci_restore,
.freeze = virtio_pci_freeze,
.thaw = virtio_pci_restore,
.restore = virtio_pci_restore,
- .poweroff = virtio_pci_suspend,
+ .poweroff = virtio_pci_freeze,
};
#endif
