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>

1 files changed, 5 insertions, 21 deletions

diff --git a/drivers/ata/pata_artop.c b/drivers/ata/pata_artop.c
index 78a93b690959..ef2bec0d4479 100644
--- a/drivers/ata/pata_artop.c
+++ b/drivers/ata/pata_artop.c
@@ -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,
 };