diff --git a/drivers/ata/pata_ns87415.c b/drivers/ata/pata_ns87415.c
index ae92b00..e0aa7ea 100644
--- a/drivers/ata/pata_ns87415.c
+++ b/drivers/ata/pata_ns87415.c
@@ -66,8 +66,8 @@
 
 	ata_timing_compute(adev, adev->pio_mode, &t, T, 0);
 
-	clocking = 17 - FIT(t.active, 2, 17);
-	clocking |= (16 - FIT(t.recover, 1, 16)) << 4;
+	clocking = 17 - clamp_val(t.active, 2, 17);
+	clocking |= (16 - clamp_val(t.recover, 1, 16)) << 4;
  	/* Use the same timing for read and write bytes */
 	clocking |= (clocking << 8);
 	pci_write_config_word(dev, timing, clocking);