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[SCSI] aic7xxx: Add suspend/resume support

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The aic7xxx driver already contains fragments for suspend/resume
support. So we only need to update them to the current interface
and have full PCI suspend/resume.

Signed-off-by: Hannes Reinecke <hare@suse.de>
Tested-by: Jens Axboe <jens.axboe@oracle.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
This commit is contained in:
Hannes Reinecke
2007-10-19 10:32:21 +02:00
committed by James Bottomley
parent eb7a1698d2
commit b5720729f5
8 changed files with 137 additions and 47 deletions
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50
drivers/scsi/aic7xxx/aic79xx_osm_pci.c
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@@ -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)
{