linux-kernel - [64/68] [PATCH] pata_pdc202xx_old: fix UDMA mode for PDC2026x chipsets

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Message-Id: <20100924163349.702195055@clark.site>
Date:	Fri, 24 Sep 2010 09:32:28 -0700
From:	Greg KH <gregkh@...e.de>
To:	linux-kernel@...r.kernel.org, stable@...nel.org
Cc:	stable-review@...nel.org, torvalds@...ux-foundation.org,
	akpm@...ux-foundation.org, alan@...rguk.ukuu.org.uk,
	Bartlomiej Zolnierkiewicz <bzolnier@...il.com>,
	Jeff Garzik <jgarzik@...hat.com>
Subject: [64/68] [PATCH] pata_pdc202xx_old: fix UDMA mode for PDC2026x chipsets

2.6.32-stable review patch.  If anyone has any objections, please let us know.

------------------

commit 750e519da7b3f470fe1b5b55c8d8f52d6d6371e4 upstream.

PDC2026x chipsets need the same treatment as PDC20246 one.

This is completely untested but will hopefully fix UDMA issues
that people have been reporting against pata_pdc202xx_old for
the last couple of years.

Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@...il.com>
Signed-off-by: Jeff Garzik <jgarzik@...hat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@...e.de>

---
 drivers/ata/pata_pdc202xx_old.c |    6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

--- a/drivers/ata/pata_pdc202xx_old.c
+++ b/drivers/ata/pata_pdc202xx_old.c
@@ -35,7 +35,7 @@ static int pdc2026x_cable_detect(struct
 	return ATA_CBL_PATA80;
 }
 
-static void pdc20246_exec_command(struct ata_port *ap,
+static void pdc202xx_exec_command(struct ata_port *ap,
 				  const struct ata_taskfile *tf)
 {
 	DPRINTK("ata%u: cmd 0x%X\n", ap->print_id, tf->command);
@@ -281,7 +281,7 @@ static struct ata_port_operations pdc202
 	.set_piomode		= pdc202xx_set_piomode,
 	.set_dmamode		= pdc202xx_set_dmamode,
 
-	.sff_exec_command	= pdc20246_exec_command,
+	.sff_exec_command	= pdc202xx_exec_command,
 };
 
 static struct ata_port_operations pdc2026x_port_ops = {
@@ -295,6 +295,8 @@ static struct ata_port_operations pdc202
 	.dev_config		= pdc2026x_dev_config,
 
 	.port_start		= pdc2026x_port_start,
+
+	.sff_exec_command	= pdc202xx_exec_command,
 };
 
 static int pdc202xx_init_one(struct pci_dev *dev, const struct pci_device_id *id)


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