sata_mv: add power management support for the PCI controllers.

Signed-off-by: Saeed Bishara <saeed@marvell.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>

1 files changed, 29 insertions, 0 deletions

diff --git a/drivers/ata/sata_mv.c b/drivers/ata/sata_mv.c
index 53a1d97cd9a6..73768195ccc2 100755
--- a/drivers/ata/sata_mv.c
+++ b/drivers/ata/sata_mv.c
@@ -4161,6 +4161,9 @@ static struct platform_driver mv_platform_driver = {
 #ifdef CONFIG_PCI
 static int mv_pci_init_one(struct pci_dev *pdev,
                            const struct pci_device_id *ent);
+#ifdef CONFIG_PM
+static int mv_pci_device_resume(struct pci_dev *pdev);
+#endif
 
 
 static struct pci_driver mv_pci_driver = {
@@ -4168,6 +4171,11 @@ static struct pci_driver mv_pci_driver = {
         .id_table               = mv_pci_tbl,
         .probe                  = mv_pci_init_one,
         .remove                 = ata_pci_remove_one,
+#ifdef CONFIG_PM
+        .suspend                = ata_pci_device_suspend,
+        .resume                 = mv_pci_device_resume,
+#endif
+
 };
 
 /* move to PCI layer or libata core? */
@@ -4324,6 +4332,27 @@ static int mv_pci_init_one(struct pci_dev *pdev,
         return ata_host_activate(host, pdev->irq, mv_interrupt, IRQF_SHARED,
                                  IS_GEN_I(hpriv) ? &mv5_sht : &mv6_sht);
 }
+
+#ifdef CONFIG_PM
+static int mv_pci_device_resume(struct pci_dev *pdev)
+{
+        struct ata_host *host = dev_get_drvdata(&pdev->dev);
+        int rc;
+
+        rc = ata_pci_device_do_resume(pdev);
+        if (rc)
+                return rc;
+
+        /* initialize adapter */
+        rc = mv_init_host(host);
+        if (rc)
+                return rc;
+
+        ata_host_resume(host);
+
+        return 0;
+}
+#endif
 #endif
 
 static int mv_platform_probe(struct platform_device *pdev);