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path: root/drivers/scsi/aic7xxx/aic79xx_osm_pci.c
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Diffstat (limited to 'drivers/scsi/aic7xxx/aic79xx_osm_pci.c')
-rw-r--r--drivers/scsi/aic7xxx/aic79xx_osm_pci.c50
1 files changed, 50 insertions, 0 deletions
diff --git a/drivers/scsi/aic7xxx/aic79xx_osm_pci.c b/drivers/scsi/aic7xxx/aic79xx_osm_pci.c
index c62ce41f279..66f0259edb6 100644
--- a/drivers/scsi/aic7xxx/aic79xx_osm_pci.c
+++ b/drivers/scsi/aic7xxx/aic79xx_osm_pci.c
@@ -50,6 +50,8 @@ static int ahd_linux_pci_reserve_io_regions(struct ahd_softc *ahd,
static int ahd_linux_pci_reserve_mem_region(struct ahd_softc *ahd,
u_long *bus_addr,
uint8_t __iomem **maddr);
+static int ahd_linux_pci_dev_suspend(struct pci_dev *pdev, pm_message_t mesg);
+static int ahd_linux_pci_dev_resume(struct pci_dev *pdev);
static void ahd_linux_pci_dev_remove(struct pci_dev *pdev);
/* Define the macro locally since it's different for different class of chips.
@@ -86,10 +88,58 @@ MODULE_DEVICE_TABLE(pci, ahd_linux_pci_id_table);
static struct pci_driver aic79xx_pci_driver = {
.name = "aic79xx",
.probe = ahd_linux_pci_dev_probe,
+#ifdef CONFIG_PM
+ .suspend = ahd_linux_pci_dev_suspend,
+ .resume = ahd_linux_pci_dev_resume,
+#endif
.remove = ahd_linux_pci_dev_remove,
.id_table = ahd_linux_pci_id_table
};
+static int
+ahd_linux_pci_dev_suspend(struct pci_dev *pdev, pm_message_t mesg)
+{
+ struct ahd_softc *ahd = pci_get_drvdata(pdev);
+ int rc;
+
+ if ((rc = ahd_suspend(ahd)))
+ return rc;
+
+ ahd_pci_suspend(ahd);
+
+ pci_save_state(pdev);
+ pci_disable_device(pdev);
+
+ if (mesg.event == PM_EVENT_SUSPEND)
+ pci_set_power_state(pdev, PCI_D3hot);
+
+ return rc;
+}
+
+static int
+ahd_linux_pci_dev_resume(struct pci_dev *pdev)
+{
+ struct ahd_softc *ahd = 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);
+
+ ahd_pci_resume(ahd);
+
+ ahd_resume(ahd);
+
+ return rc;
+}
+
static void
ahd_linux_pci_dev_remove(struct pci_dev *pdev)
{