pata_via: fix address setup timings underlocking
authorBartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Mon, 18 Jan 2010 17:17:03 +0000 (18:17 +0100)
committerJeff Garzik <jgarzik@redhat.com>
Mon, 1 Mar 2010 19:58:45 +0000 (14:58 -0500)
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>
drivers/ata/pata_via.c

index 0d97890af6818ee116c81b2edb474a266ed2ab54..82e75a1f1b95c49c8d76f1410d59ffda23ba68c2 100644 (file)
@@ -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);
        }