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pata_cmd64x: add cmd64x_fixup()

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Factor out common code from cmd64x_[re]init_one() to cmd64x_fixup().

Remove stale comment and fix a minor CodingStyle issue while at it.

Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
This commit is contained in:
Bartlomiej Zolnierkiewicz 2011-10-11 19:56:03 +02:00 committed by Jeff Garzik
parent dc5e44ec6f
commit f4c6ae5020
1 changed files with 20 additions and 22 deletions
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42
drivers/ata/pata_cmd64x.c
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@ -288,6 +288,22 @@ static struct ata_port_operations cmd648_port_ops = {
.cable_detect = cmd648_cable_detect,
};
static void cmd64x_fixup(struct pci_dev *pdev)
{
u8 mrdmode;
pci_write_config_byte(pdev, PCI_LATENCY_TIMER, 64);
pci_read_config_byte(pdev, MRDMODE, &mrdmode);
mrdmode &= ~0x30; /* IRQ set up */
mrdmode |= 0x02; /* Memory read line enable */
pci_write_config_byte(pdev, MRDMODE, mrdmode);
/* PPC specific fixup copied from old driver */
#ifdef CONFIG_PPC
pci_write_config_byte(pdev, UDIDETCR0, 0xF0);
#endif
}
static int cmd64x_init_one(struct pci_dev *pdev, const struct pci_device_id *id)
{
static const struct ata_port_info cmd_info[6] = {
@ -336,7 +352,7 @@ static int cmd64x_init_one(struct pci_dev *pdev, const struct pci_device_id *id)
&cmd_info[id->driver_data],
NULL
};
u8 mrdmode, reg;
u8 reg;
int rc;
struct pci_dev *bridge = pdev->bus->self;
/* mobility split bridges don't report enabled ports correctly */
@ -368,11 +384,7 @@ static int cmd64x_init_one(struct pci_dev *pdev, const struct pci_device_id *id)
cntrl_ch0_ok = 0;
}
pci_write_config_byte(pdev, PCI_LATENCY_TIMER, 64);
pci_read_config_byte(pdev, MRDMODE, &mrdmode);
mrdmode &= ~ 0x30; /* IRQ set up */
mrdmode |= 0x02; /* Memory read line enable */
pci_write_config_byte(pdev, MRDMODE, mrdmode);
cmd64x_fixup(pdev);
/* check for enabled ports */
pci_read_config_byte(pdev, CNTRL, &reg);
@ -388,13 +400,6 @@ static int cmd64x_init_one(struct pci_dev *pdev, const struct pci_device_id *id)
ppi[1] = &ata_dummy_port_info;
}
/* Force PIO 0 here.. */
/* PPC specific fixup copied from old driver */
#ifdef CONFIG_PPC
pci_write_config_byte(pdev, UDIDETCR0, 0xF0);
#endif
return ata_pci_bmdma_init_one(pdev, ppi, &cmd64x_sht, NULL, 0);
}
@ -402,21 +407,14 @@ static int cmd64x_init_one(struct pci_dev *pdev, const struct pci_device_id *id)
static int cmd64x_reinit_one(struct pci_dev *pdev)
{
struct ata_host *host = dev_get_drvdata(&pdev->dev);
u8 mrdmode;
int rc;
rc = ata_pci_device_do_resume(pdev);
if (rc)
return rc;
pci_write_config_byte(pdev, PCI_LATENCY_TIMER, 64);
pci_read_config_byte(pdev, MRDMODE, &mrdmode);
mrdmode &= ~ 0x30; /* IRQ set up */
mrdmode |= 0x02; /* Memory read line enable */
pci_write_config_byte(pdev, MRDMODE, mrdmode);
#ifdef CONFIG_PPC
pci_write_config_byte(pdev, UDIDETCR0, 0xF0);
#endif
cmd64x_fixup(pdev);
ata_host_resume(host);
return 0;
}