[PATCH 08/64] pata_cmd64x: fix PIO setup

[Bartlomiej Zolnierkiewicz]

From: Bartlomiej Zolnierkiewicz <bzolnier@xxxxxxxxx>
Subject: [PATCH] pata_cmd64x: fix PIO setup

Fix incorrect handling of recovery clocks value == 16 resulting
in overclocked recovery timings & potentially underclocked active
timings.

Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@xxxxxxxxx>
---
 drivers/ata/pata_cmd64x.c |    6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

Index: b/drivers/ata/pata_cmd64x.c
===================================================================
--- a/drivers/ata/pata_cmd64x.c
+++ b/drivers/ata/pata_cmd64x.c
@@ -2,7 +2,7 @@
  * pata_cmd64x.c 	- CMD64x PATA for new ATA layer
  *			  (C) 2005 Red Hat Inc
  *			  Alan Cox <alan@xxxxxxxxxxxxxxxxxxx>
- *			  (C) 2009 Bartlomiej Zolnierkiewicz
+ *			  (C) 2009-2010 Bartlomiej Zolnierkiewicz
  *
  * Based upon
  * linux/drivers/ide/pci/cmd64x.c		Version 1.30	Sept 10, 2002
@@ -182,7 +182,9 @@ static void cmd64x_set_timing(struct ata
 	/* Now convert the clocks into values we can actually stuff into
 	   the chip */
 
-	if (t.recover > 1)
+	if (t.recover == 16)
+		t.recover = 0;
+	else if (t.recover > 1)
 		t.recover--;
 	else
 		t.recover = 15;
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/