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pata_hpt366: Enable bits are unreliable so don't use them

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Various people had problems with both old and new IDE when hpt366 enable
bits started getting honoured. It turns out they are not reliable so
don't rely on them

Signed-off-by: Alan Cox <alan@redhat.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
This commit is contained in:
Alan Cox 2007-05-21 14:52:49 +01:00 committed by Jeff Garzik
parent 39f198868d
commit 4349eebf67
1 changed files with 1 additions and 27 deletions
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28
drivers/ata/pata_hpt366.c
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@ -220,32 +220,6 @@ static int hpt36x_cable_detect(struct ata_port *ap)
return ATA_CBL_PATA80;
}
static int hpt36x_pre_reset(struct ata_port *ap, unsigned long deadline)
{
static const struct pci_bits hpt36x_enable_bits[] = {
{ 0x50, 1, 0x04, 0x04 },
{ 0x54, 1, 0x04, 0x04 }
};
struct pci_dev *pdev = to_pci_dev(ap->host->dev);
if (!pci_test_config_bits(pdev, &hpt36x_enable_bits[ap->port_no]))
return -ENOENT;
return ata_std_prereset(ap, deadline);
}
/**
* hpt36x_error_handler - reset the hpt36x bus
* @ap: ATA port to reset
*
* Perform the reset handling for the 366/368
*/
static void hpt36x_error_handler(struct ata_port *ap)
{
ata_bmdma_drive_eh(ap, hpt36x_pre_reset, ata_std_softreset, NULL, ata_std_postreset);
}
/**
* hpt366_set_piomode - PIO setup
* @ap: ATA interface
@ -351,7 +325,7 @@ static struct ata_port_operations hpt366_port_ops = {
.freeze = ata_bmdma_freeze,
.thaw = ata_bmdma_thaw,
.error_handler = hpt36x_error_handler,
.error_handler = ata_bmdma_error_handler,
.post_internal_cmd = ata_bmdma_post_internal_cmd,
.cable_detect = hpt36x_cable_detect,