[RFC PATCH 1/8] virtio: pci: switch to new PM API

[Amit Shah <amit.shah@redhat.com>]

The older PM API doesn't have a way to get notifications on hibernate
events, switch to the newer one that gives us those notifications.

Signed-off-by: Amit Shah <amit.shah@redhat.com>
---
 drivers/virtio/virtio_pci.c |   17 +++++++++++++----
 1 files changed, 13 insertions(+), 4 deletions(-)

diff --git a/drivers/virtio/virtio_pci.c b/drivers/virtio/virtio_pci.c
index 4bcc8b8..3879c3e 100644
--- a/drivers/virtio/virtio_pci.c
+++ b/drivers/virtio/virtio_pci.c
@@ -17,6 +17,7 @@
 #include <linux/module.h>
 #include <linux/list.h>
 #include <linux/pci.h>
+#include <linux/pm.h>
 #include <linux/slab.h>
 #include <linux/interrupt.h>
 #include <linux/virtio.h>
@@ -685,19 +686,28 @@ static void __devexit virtio_pci_remove(struct pci_dev *pci_dev)
 }
 
 #ifdef CONFIG_PM
-static int virtio_pci_suspend(struct pci_dev *pci_dev, pm_message_t state)
+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 pci_dev *pci_dev)
+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 const struct dev_pm_ops virtio_pci_pm_ops = {
+	.suspend = virtio_pci_suspend,
+	.resume  = virtio_pci_resume,
+};
 #endif
 
 static struct pci_driver virtio_pci_driver = {
@@ -706,8 +716,7 @@ static struct pci_driver virtio_pci_driver = {
 	.probe		= virtio_pci_probe,
 	.remove		= __devexit_p(virtio_pci_remove),
 #ifdef CONFIG_PM
-	.suspend	= virtio_pci_suspend,
-	.resume		= virtio_pci_resume,
+	.driver.pm	= &virtio_pci_pm_ops,
 #endif
 };
 
-- 
1.7.6