tx493xide: use ->pio_mode value to determine pair device speed

Use the current PIO mode value instead of the physical maximum one
of the pair device on the port to determine PIO commmand timings used
for both devices on the port.

Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

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.