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

drivers/ata/pata_cs5520.c

+25 −1
Original line number Diff line number Diff line
@@ -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,

};