Commit aa6de494 authored by Alan Cox Cox's avatar Alan Cox Cox Committed by Jeff Garzik

pata_cs5520: suspend/resume

The CS5520 isn't just an ATA controller and we must not
pci_disable_device it as it turns into pci_disable_computer.
Signed-off-by: default avatarAlan Cox <alan@redhat.com>
Signed-off-by: default avatarJeff Garzik <jeff@garzik.org>
parent e852f705
......@@ -325,6 +325,30 @@ static int cs5520_reinit_one(struct pci_dev *pdev)
pci_write_config_byte(pdev, 0x60, pcicfg | 0x40);
return ata_pci_device_resume(pdev);
}
/**
* cs5520_pci_device_suspend - device suspend
* @pdev: PCI device
*
* We have to cut and waste bits from the standard method because
* the 5520 is a bit odd and not just a pure ATA device. As a result
* we must not disable it. The needed code is short and this avoids
* chip specific mess in the core code.
*/
static int cs5520_pci_device_suspend(struct pci_dev *pdev, pm_message_t mesg)
{
struct ata_host *host = dev_get_drvdata(&pdev->dev);
int rc = 0;
rc = ata_host_suspend(host, mesg);
if (rc)
return rc;
pci_save_state(pdev);
return 0;
}
/* For now keep DMA off. We can set it for all but A rev CS5510 once the
core ATA code can handle it */
......@@ -340,7 +364,7 @@ static struct pci_driver cs5520_pci_driver = {
.id_table = pata_cs5520,
.probe = cs5520_init_one,
.remove = cs5520_remove_one,
.suspend = ata_pci_device_suspend,
.suspend = cs5520_pci_device_suspend,
.resume = cs5520_reinit_one,
};
......
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