Messages in this thread Patch in this message |  | | Date | Tue, 20 Feb 2007 17:44:25 +0000 | From | Alan <> | Subject | [PATCH] pata_cs5520: suspend/resume |
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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: Alan Cox <alan@redhat.com>
diff -u --new-file --recursive --exclude-from /usr/src/exclude linux.vanilla-2.6.20-mm2/drivers/ata/pata_cs5520.c linux-2.6.20-mm2/drivers/ata/pata_cs5520.c --- linux.vanilla-2.6.20-mm2/drivers/ata/pata_cs5520.c 2007-02-20 13:37:58.000000000 +0000 +++ linux-2.6.20-mm2/drivers/ata/pata_cs5520.c 2007-02-20 13:52:42.000000000 +0000 @@ -325,6 +325,30 @@ 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 @@ .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, }; - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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