Commit 960627b7 authored by Tejun Heo's avatar Tejun Heo Committed by Jeff Garzik
Browse files

pata_jmicron: drop unnecessary device programming in [re]init



Channel redirect and AHCI mode enable programmings are done via PCI
quirk for both probe and resume paths.  Drop duplicate and possibly
unsafe device programming from pata_jmicron().
Signed-off-by: default avatarTejun Heo <htejun@gmail.com>
Signed-off-by: default avatarJeff Garzik <jeff@garzik.org>
parent 09125ea6
......@@ -202,43 +202,13 @@ static int jmicron_init_one (struct pci_dev *pdev, const struct pci_device_id *i
};
struct ata_port_info *port_info[2] = { &info, &info };
u32 reg;
/* PATA controller is fn 1, AHCI is fn 0 */
if (id->driver_data != 368 && PCI_FUNC(pdev->devfn) != 1)
return -ENODEV;
/* The 365/66 have two PATA channels, redirect the second */
if (id->driver_data == 365 || id->driver_data == 366) {
pci_read_config_dword(pdev, 0x80, &reg);
reg |= (1 << 24); /* IDE1 to PATA IDE secondary */
pci_write_config_dword(pdev, 0x80, reg);
}
return ata_pci_init_one(pdev, port_info, 2);
}
static int jmicron_reinit_one(struct pci_dev *pdev)
{
u32 reg;
switch(pdev->device) {
case PCI_DEVICE_ID_JMICRON_JMB368:
break;
case PCI_DEVICE_ID_JMICRON_JMB365:
case PCI_DEVICE_ID_JMICRON_JMB366:
/* Restore mapping or disks swap and boy does it get ugly */
pci_read_config_dword(pdev, 0x80, &reg);
reg |= (1 << 24); /* IDE1 to PATA IDE secondary */
pci_write_config_dword(pdev, 0x80, reg);
/* Fall through */
default:
/* Make sure AHCI is turned back on */
pci_write_config_byte(pdev, 0x41, 0xa1);
}
return ata_pci_device_resume(pdev);
}
static const struct pci_device_id jmicron_pci_tbl[] = {
{ PCI_VDEVICE(JMICRON, PCI_DEVICE_ID_JMICRON_JMB361), 361},
{ PCI_VDEVICE(JMICRON, PCI_DEVICE_ID_JMICRON_JMB363), 363},
......@@ -255,7 +225,7 @@ static struct pci_driver jmicron_pci_driver = {
.probe = jmicron_init_one,
.remove = ata_pci_remove_one,
.suspend = ata_pci_device_suspend,
.resume = jmicron_reinit_one,
.resume = ata_pci_device_resume,
};
static int __init jmicron_init(void)
......
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