PM: Introduce PM_EVENT_HIBERNATE callback state

[linux-2.6-omap-h63xx.git] / drivers / scsi / aic7xxx / aic7xxx_osm_pci.c

diff --git a/drivers/scsi/aic7xxx/aic7xxx_osm_pci.c b/drivers/scsi/aic7xxx/aic7xxx_osm_pci.c
index d20ca514e9f36f11ba120dbe132338fa9c7f8ce6..3d3eaef65fb3e6ded30a548eb7e1d25eab1e5300 100644 (file)
--- a/drivers/scsi/aic7xxx/aic7xxx_osm_pci.c
+++ b/drivers/scsi/aic7xxx/aic7xxx_osm_pci.c
@@ -42,15 +42,6 @@
 #include "aic7xxx_osm.h"
 #include "aic7xxx_pci.h"
 
-static int     ahc_linux_pci_dev_probe(struct pci_dev *pdev,
-                                       const struct pci_device_id *ent);
-static int     ahc_linux_pci_reserve_io_region(struct ahc_softc *ahc,
-                                               u_long *base);
-static int     ahc_linux_pci_reserve_mem_region(struct ahc_softc *ahc,
-                                                u_long *bus_addr,
-                                                uint8_t __iomem **maddr);
-static void    ahc_linux_pci_dev_remove(struct pci_dev *pdev);
-
 /* Define the macro locally since it's different for different class of chips.
 */
 #define ID(x)  ID_C(x, PCI_CLASS_STORAGE_SCSI)
@@ -130,12 +121,47 @@ static struct pci_device_id ahc_linux_pci_id_table[] = {
 
 MODULE_DEVICE_TABLE(pci, ahc_linux_pci_id_table);
 
-struct pci_driver aic7xxx_pci_driver = {
-       .name           = "aic7xxx",
-       .probe          = ahc_linux_pci_dev_probe,
-       .remove         = ahc_linux_pci_dev_remove,
-       .id_table       = ahc_linux_pci_id_table
-};
+#ifdef CONFIG_PM
+static int
+ahc_linux_pci_dev_suspend(struct pci_dev *pdev, pm_message_t mesg)
+{
+       struct ahc_softc *ahc = pci_get_drvdata(pdev);
+       int rc;
+
+       if ((rc = ahc_suspend(ahc)))
+               return rc;
+
+       pci_save_state(pdev);
+       pci_disable_device(pdev);
+
+       if (mesg.event & PM_EVENT_SLEEP)
+               pci_set_power_state(pdev, PCI_D3hot);
+
+       return rc;
+}
+
+static int
+ahc_linux_pci_dev_resume(struct pci_dev *pdev)
+{
+       struct ahc_softc *ahc = pci_get_drvdata(pdev);
+       int rc;
+
+       pci_set_power_state(pdev, PCI_D0);
+       pci_restore_state(pdev);
+
+       if ((rc = pci_enable_device(pdev))) {
+               dev_printk(KERN_ERR, &pdev->dev,
+                          "failed to enable device after resume (%d)\n", rc);
+               return rc;
+       }
+
+       pci_set_master(pdev);
+
+       ahc_pci_resume(ahc);
+
+       return (ahc_resume(ahc));
+}
+#endif
 
 static void
 ahc_linux_pci_dev_remove(struct pci_dev *pdev)
@@ -243,6 +269,17 @@ ahc_linux_pci_dev_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
        return (0);
 }
 
+static struct pci_driver aic7xxx_pci_driver = {
+       .name           = "aic7xxx",
+       .probe          = ahc_linux_pci_dev_probe,
+#ifdef CONFIG_PM
+       .suspend        = ahc_linux_pci_dev_suspend,
+       .resume         = ahc_linux_pci_dev_resume,
+#endif
+       .remove         = ahc_linux_pci_dev_remove,
+       .id_table       = ahc_linux_pci_id_table
+};
+
 int
 ahc_linux_pci_init(void)
 {