pata_via: fix address setup timings underlocking

Correct via_do_set_mode() documentation while at it.

Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>

diff --git a/drivers/ata/pata_via.c b/drivers/ata/pata_via.c
index 0d97890..82e75a1 100644 (file)
--- a/drivers/ata/pata_via.c
+++ b/drivers/ata/pata_via.c
@@ -229,7 +229,7 @@ static int via_pre_reset(struct ata_link *link, unsigned long deadline)
 
 
 /**
- *     via_do_set_mode -       set initial PIO mode data
+ *     via_do_set_mode -       set transfer mode data
  *     @ap: ATA interface
  *     @adev: ATA device
  *     @mode: ATA mode being programmed
@@ -273,7 +273,7 @@ static void via_do_set_mode(struct ata_port *ap, struct ata_device *adev, int mo
 
                pci_read_config_byte(pdev, 0x4C, &setup);
                setup &= ~(3 << shift);
-               setup |= clamp_val(t.setup, 1, 4) << shift;     /* 1,4 or 1,4 - 1  FIXME */
+               setup |= (clamp_val(t.setup, 1, 4) - 1) << shift;
                pci_write_config_byte(pdev, 0x4C, setup);
        }