[SCSI] aic7xxx: final fixes for DT handling

The aic7xxx can support Data Group transfers at periods > 12.5, so
eliminate that restriction.  Additionally wide is a requirement for DT
so ensure wide is set if users request DT.

Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>

1 files changed, 4 insertions, 4 deletions

diff --git a/drivers/scsi/aic7xxx/aic7xxx_osm.c b/drivers/scsi/aic7xxx/aic7xxx_osm.c
index d0d0b84a31f4..d79a2ae89979 100644
--- a/drivers/scsi/aic7xxx/aic7xxx_osm.c
+++ b/drivers/scsi/aic7xxx/aic7xxx_osm.c
@@ -2429,16 +2429,16 @@ static void ahc_linux_set_dt(struct scsi_target *starget, int dt)
         unsigned int ppr_options = tinfo->goal.ppr_options
                 & ~MSG_EXT_PPR_DT_REQ;
         unsigned int period = tinfo->goal.period;
+        unsigned int width = tinfo->goal.width;
         unsigned long flags;
         struct ahc_syncrate *syncrate;
 
         if (dt) {
-                period = 9;     /* 12.5ns is the only period valid for DT */
                 ppr_options |= MSG_EXT_PPR_DT_REQ;
-        } else if (period == 9) {
+                if (!width)
+                        ahc_linux_set_width(starget, 1);
+        } else if (period == 9)
                 period = 10;    /* if resetting DT, period must be >= 25ns */
-                ppr_options &= ~MSG_EXT_PPR_DT_REQ;
-        }
 
         ahc_compile_devinfo(&devinfo, shost->this_id, starget->id, 0,
                             starget->channel + 'A', ROLE_INITIATOR);