From: Tejun Heo <tj@kernel.org>
Date: Sun, 9 Jan 2011 22:48:20 +0000 (-0500)
Subject: pata_mpc52xx: inherit from ata_bmdma_port_ops
X-Git-Tag: firefly_0821_release~10186^2~502
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=c873af89555d5012ad0568c695e31ade2a5b17e5;p=firefly-linux-kernel-4.4.55.git

pata_mpc52xx: inherit from ata_bmdma_port_ops

commit 77c5fd19075d299fe820bb59bb21b0b113676e20 upstream.

pata_mpc52xx supports BMDMA but inherits ata_sff_port_ops which
triggers BUG_ON() when a DMA command is issued.  Fix it.

Signed-off-by: Tejun Heo <tj@kernel.org>
Reported-by: Roman Fietze <roman.fietze@telemotive.de>
Cc: Sergei Shtylyov <sshtylyov@mvista.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
---

diff --git a/drivers/ata/pata_mpc52xx.c b/drivers/ata/pata_mpc52xx.c
index 2bc2dbe30e8f..99d41beea622 100644
--- a/drivers/ata/pata_mpc52xx.c
+++ b/drivers/ata/pata_mpc52xx.c
@@ -610,7 +610,7 @@ static struct scsi_host_template mpc52xx_ata_sht = {
 };
 
 static struct ata_port_operations mpc52xx_ata_port_ops = {
-	.inherits		= &ata_sff_port_ops,
+	.inherits		= &ata_bmdma_port_ops,
 	.sff_dev_select		= mpc52xx_ata_dev_select,
 	.set_piomode		= mpc52xx_ata_set_piomode,
 	.set_dmamode		= mpc52xx_ata_set_dmamode,