+static ssize_t
+show_spi_transport_period(struct class_device *cdev, char *buf)
+{
+ struct scsi_target *starget = transport_class_to_starget(cdev);
+ struct Scsi_Host *shost = dev_to_shost(starget->dev.parent);
+ struct spi_internal *i = to_spi_internal(shost->transportt);
+ struct spi_transport_attrs *tp =
+ (struct spi_transport_attrs *)&starget->starget_data;
+
+ if (i->f->get_period)
+ i->f->get_period(starget);
+
+ return show_spi_transport_period_helper(cdev, buf, tp->period);
+}
+
+static ssize_t
+store_spi_transport_period(struct class_device *cdev, const char *buf,
+ size_t count)
+{
+ struct scsi_target *starget = transport_class_to_starget(cdev);
+ struct Scsi_Host *shost = dev_to_shost(starget->dev.parent);
+ struct spi_internal *i = to_spi_internal(shost->transportt);
+ struct spi_transport_attrs *tp =
+ (struct spi_transport_attrs *)&starget->starget_data;
+ int period, retval;
+
+ retval = store_spi_transport_period_helper(cdev, buf, count, &period);
+
+ if (period < tp->min_period)
+ period = tp->min_period;
+
+ i->f->set_period(starget, period);
+
+ return retval;
+}
+