linux-kernel - [ 20/39] ata: Fix DVD not dectected at some platform with Wellsburg PCH

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Message-Id: <20130802101459.682144332@linuxfoundation.org>
Date:	Fri,  2 Aug 2013 18:18:30 +0800
From:	Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:	linux-kernel@...r.kernel.org
Cc:	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	stable@...r.kernel.org, Youquan Song <youquan.song@...el.com>,
	Tejun Heo <tj@...nel.org>
Subject: [ 20/39] ata: Fix DVD not dectected at some platform with Wellsburg PCH

3.4-stable review patch.  If anyone has any objections, please let me know.

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

From: Youquan Song <youquan.song@...el.com>

commit eac27f04a71e1f39f196f7e520d16dcefc955d77 upstream.

There is a patch b55f84e2d527182e7c611d466cd0bb6ddce201de "ata_piix: Fix DVD
 not dectected at some Haswell platforms" to fix an issue of DVD not
recognized on Haswell Desktop platform with Lynx Point.
Recently, it is also found the same issue at some platformas with Wellsburg PCH.

So deliver a similar patch to fix it by disables 32bit PIO in IDE mode.

Signed-off-by: Youquan Song <youquan.song@...el.com>
Signed-off-by: Tejun Heo <tj@...nel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>

---
 drivers/ata/ata_piix.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/drivers/ata/ata_piix.c
+++ b/drivers/ata/ata_piix.c
@@ -344,7 +344,7 @@ static const struct pci_device_id piix_p
 	/* SATA Controller IDE (Wellsburg) */
 	{ 0x8086, 0x8d00, PCI_ANY_ID, PCI_ANY_ID, 0, 0, ich8_sata_snb },
 	/* SATA Controller IDE (Wellsburg) */
-	{ 0x8086, 0x8d08, PCI_ANY_ID, PCI_ANY_ID, 0, 0, ich8_2port_sata },
+	{ 0x8086, 0x8d08, PCI_ANY_ID, PCI_ANY_ID, 0, 0, ich8_2port_sata_snb },
 	/* SATA Controller IDE (Wellsburg) */
 	{ 0x8086, 0x8d60, PCI_ANY_ID, PCI_ANY_ID, 0, 0, ich8_sata_snb },
 	/* SATA Controller IDE (Wellsburg) */


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