1 files changed, 1 insertions, 1 deletions

diff --git a/drivers/ide/tx4939ide.c b/drivers/ide/tx4939ide.c
index f210633a3d57..3c7367751873 100644
--- a/drivers/ide/tx4939ide.c
+++ b/drivers/ide/tx4939ide.c
@@ -114,7 +114,7 @@ static void tx4939ide_set_pio_mode(ide_hwif_t *hwif, ide_drive_t *drive)
 
         pair = ide_get_pair_dev(drive);
         if (pair)
-                safe = min(safe, ide_get_best_pio_mode(pair, 255, 4));
+                safe = min(safe, pair->pio_mode - XFER_PIO_0);
         /*
          * Update Command Transfer Mode for master/slave and Data
          * Transfer Mode for this drive.