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sis5513: fail early for unsupported chipsets

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* Factor out chipset family detection from init_chipset_sis5513()
  to sis_find_family().

* Use sis_find_family() in sis5513_init_one() to fail early if the
  chipset is unsupported.

* Keep a local copy sis5513_chipset in sis5513_init_one()
  and set .udma_mask according to chipset family.

* Remove no longer need ->ultra_mask setting from init_hwif_sis5513().

Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
This commit is contained in:
Bartlomiej Zolnierkiewicz 2008-04-26 17:36:43 +02:00
parent eb7a07e8d6
commit 4764b68405
1 changed files with 15 additions and 15 deletions
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30
drivers/ide/pci/sis5513.c
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@ -359,9 +359,7 @@ static u8 sis5513_ata133_udma_filter(ide_drive_t *drive)
return (regdw & 0x08) ? ATA_UDMA6 : ATA_UDMA5;
}
/* Chip detection and general config */
static unsigned int __devinit init_chipset_sis5513(struct pci_dev *dev,
const char *name)
static int __devinit sis_find_family(struct pci_dev *dev)
{
struct pci_dev *host;
int i = 0;
@ -442,14 +440,16 @@ static unsigned int __devinit init_chipset_sis5513(struct pci_dev *dev,
}
}
if (!chipset_family)
return -1;
return chipset_family;
}
static unsigned int __devinit init_chipset_sis5513(struct pci_dev *dev,
const char *name)
{
/* Make general config ops here
1/ tell IDE channels to operate in Compatibility mode only
2/ tell old chips to allow per drive IDE timings */
{
u8 reg;
u16 regw;
@ -495,7 +495,6 @@ static unsigned int __devinit init_chipset_sis5513(struct pci_dev *dev,
pci_write_config_byte(dev, 0x52, reg|0x08);
break;
}
}
return 0;
}
@ -546,8 +545,6 @@ static u8 __devinit ata66_sis5513(ide_hwif_t *hwif)
static void __devinit init_hwif_sis5513(ide_hwif_t *hwif)
{
u8 udma_rates[] = { 0x00, 0x00, 0x07, 0x1f, 0x3f, 0x3f, 0x7f, 0x7f };
hwif->set_pio_mode = &sis_set_pio_mode;
hwif->set_dma_mode = &sis_set_dma_mode;
@ -555,11 +552,6 @@ static void __devinit init_hwif_sis5513(ide_hwif_t *hwif)
hwif->udma_filter = sis5513_ata133_udma_filter;
hwif->cable_detect = ata66_sis5513;
if (hwif->dma_base == 0)
return;
hwif->ultra_mask = udma_rates[chipset_family];
}
static const struct ide_port_info sis5513_chipset __devinitdata = {
@ -574,7 +566,15 @@ static const struct ide_port_info sis5513_chipset __devinitdata = {
static int __devinit sis5513_init_one(struct pci_dev *dev, const struct pci_device_id *id)
{
return ide_setup_pci_device(dev, &sis5513_chipset);
struct ide_port_info d = sis5513_chipset;
u8 udma_rates[] = { 0x00, 0x00, 0x07, 0x1f, 0x3f, 0x3f, 0x7f, 0x7f };
if (sis_find_family(dev) == 0)
return -ENOTSUPP;
d.udma_mask = udma_rates[chipset_family];
return ide_setup_pci_device(dev, &d);
}
static const struct pci_device_id sis5513_pci_tbl[] = {