[PATCH] update the 53c700 use of transport attributes

This patch just brings it up to date with the previous transport
attribute patch, moving it to the model where it sets the min/max of the
attribute if asked for something outside its range.  It also only makes
period and offset visible (it doesn't care about any of the others).

drivers/scsi/53c700.c

@@ -1998,9 +1998,12 @@ NCR_700_set_period(struct scsi_device *SDp, int period)
 	struct NCR_700_Host_Parameters *hostdata = 
 		(struct NCR_700_Host_Parameters *)SDp->host->hostdata[0];
 	
-	if(!hostdata->fast || period < hostdata->min_period)
+	if(!hostdata->fast)
 		return;
 
+	if(period < hostdata->min_period)
+		period = hostdata->min_period;
+
 	spi_period(SDp) = period;
 	NCR_700_clear_flag(SDp, NCR_700_DEV_NEGOTIATED_SYNC);
 	NCR_700_clear_flag(SDp, NCR_700_DEV_BEGIN_SYNC_NEGOTIATION);
@@ -2012,12 +2015,15 @@ NCR_700_set_offset(struct scsi_device *SDp, int offset)
 {
 	struct NCR_700_Host_Parameters *hostdata = 
 		(struct NCR_700_Host_Parameters *)SDp->host->hostdata[0];
+	int max_offset = hostdata->chip710
+		? NCR_710_MAX_OFFSET : NCR_700_MAX_OFFSET;
 	
-	if(!hostdata->fast ||
-	   offset > (hostdata->chip710
-		     ? NCR_710_MAX_OFFSET : NCR_700_MAX_OFFSET))
+	if(!hostdata->fast)
 		return;
 
+	if(offset > max_offset)
+		offset = max_offset;
+
 	/* if we're currently async, make sure the period is reasonable */
 	if(spi_offset(SDp) == 0 && (spi_period(SDp) < hostdata->min_period ||
 				    spi_period(SDp) > 0xff))
@@ -2107,8 +2113,10 @@ EXPORT_SYMBOL(NCR_700_release);
 EXPORT_SYMBOL(NCR_700_intr);
 
 static struct spi_function_template NCR_700_transport_functions =  {
-	.set_period = NCR_700_set_period,
-	.set_offset = NCR_700_set_offset,
+	.set_period	= NCR_700_set_period,
+	.show_period	= 1,
+	.set_offset	= NCR_700_set_offset,
+	.show_offset	= 1,
 };
 
 static int __init NCR_700_init(void)