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pata_artop: unify ->prereset methods 

* Unify ->prereset methods for ATP850 and ATP86x[R] chipsets.

* Fix ->prereset documentation 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 19:45:52 +02:00 committed by Jeff Garzik
parent d0dd4a016b
commit f6b56696b9
1 changed files with 5 additions and 21 deletions
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26
drivers/ata/pata_artop.c
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@ -39,31 +39,15 @@
static int clock = 0;
static int artop6210_pre_reset(struct ata_link *link, unsigned long deadline)
{
struct ata_port *ap = link->ap;
struct pci_dev *pdev = to_pci_dev(ap->host->dev);
const struct pci_bits artop_enable_bits[] = {
{ 0x4AU, 1U, 0x02UL, 0x02UL }, /* port 0 */
{ 0x4AU, 1U, 0x04UL, 0x04UL }, /* port 1 */
};
if (!pci_test_config_bits(pdev, &artop_enable_bits[ap->port_no]))
return -ENOENT;
return ata_sff_prereset(link, deadline);
}
/**
* artop6260_pre_reset - check for 40/80 pin
* artop62x0_pre_reset - probe begin
* @link: link
* @deadline: deadline jiffies for the operation
*
* The ARTOP hardware reports the cable detect bits in register 0x49.
* Nothing complicated needed here.
*/
static int artop6260_pre_reset(struct ata_link *link, unsigned long deadline)
static int artop62x0_pre_reset(struct ata_link *link, unsigned long deadline)
{
static const struct pci_bits artop_enable_bits[] = {
{ 0x4AU, 1U, 0x02UL, 0x02UL }, /* port 0 */
@ -73,7 +57,7 @@ static int artop6260_pre_reset(struct ata_link *link, unsigned long deadline)
struct ata_port *ap = link->ap;
struct pci_dev *pdev = to_pci_dev(ap->host->dev);
/* Odd numbered device ids are the units with enable bits (the -R cards) */
/* Odd numbered device ids are the units with enable bits. */
if ((pdev->device & 1) &&
!pci_test_config_bits(pdev, &artop_enable_bits[ap->port_no]))
return -ENOENT;
@ -317,7 +301,7 @@ static struct ata_port_operations artop6210_ops = {
.cable_detect = ata_cable_40wire,
.set_piomode = artop6210_set_piomode,
.set_dmamode = artop6210_set_dmamode,
.prereset = artop6210_pre_reset,
.prereset = artop62x0_pre_reset,
.qc_defer = artop6210_qc_defer,
};
@ -326,7 +310,7 @@ static struct ata_port_operations artop6260_ops = {
.cable_detect = artop6260_cable_detect,
.set_piomode = artop6260_set_piomode,
.set_dmamode = artop6260_set_dmamode,
.prereset = artop6260_pre_reset,
.prereset = artop62x0_pre_reset,
};