[Oneiric][PATCH 1/1] UBUNTU: SAUCE: x86: reboot: Make Dell Latitude E6220 use reboot=pci

[Leann Ogasawara]

Hi All,

BugLink: http://bugs.launchpad.net/bugs/838402

== SRU Justification ==

It's been reported that the Dell Latitude E6220 doesn't reboot unless
using reboot=pci.  The following patch resolves this issue and has been
successfully tested.  Upstream is unfortunately not accepting any
additional quirk patches like this as they would prefer to migrate to a
more systematic approach.  Given that the patch is system specific (ie
low risk of regression), precedence for similar quirk patches already
existing, and having received positive test results, I feel it should be
carried as a SAUCE patch until a more systematic approach can be found
which upstream will accept.

== Impact ==
Affects Dell Latitude E6220 models.

== Test Case ==
Without the patch, those with a Dell Latitude E6220 must use reboot=pci
as a workaround in order for the system to successfully reboot.  With
the patch applied, the work around is no longer needed.

== Fix ==
See patch below.

>From 0f6ecec81cf28e1916f52a856eff36353abe0aa3 Mon Sep 17 00:00:00 2001
From: Leann Ogasawara <leann.ogasawara at canonical.com>
Date: Fri, 26 Aug 2011 07:30:16 -0700
Subject: [PATCH] UBUNTU: SAUCE: x86: reboot: Make Dell Latitude E6220 use reboot=pci

BugLink: http://bugs.launchpad.net/bugs/838402

The Dell Latitude E6220 doesn't reboot unless reboot=pci is set.

Signed-off-by: Leann Ogasawara <leann.ogasawara at canonical.com>
---
 arch/x86/kernel/reboot.c |    8 ++++++++
 1 files changed, 8 insertions(+), 0 deletions(-)

diff --git a/arch/x86/kernel/reboot.c b/arch/x86/kernel/reboot.c
index bd2b776..721c811 100644
--- a/arch/x86/kernel/reboot.c
+++ b/arch/x86/kernel/reboot.c
@@ -435,6 +435,14 @@ static struct dmi_system_id __initdata pci_reboot_dmi_table[] = {
 			DMI_MATCH(DMI_PRODUCT_NAME, "Latitude E5420"),
 		},
 	},
+	{       /* Handle problems with rebooting on the Latitude E6220. */
+		.callback = set_pci_reboot,
+		.ident = "Dell Latitude E6220",
+		.matches = {
+			DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
+			DMI_MATCH(DMI_PRODUCT_NAME, "Latitude E6220"),
+		},
+	},
 	{	/* Handle problems with rebooting on the Latitude E6420. */
 		.callback = set_pci_reboot,
 		.ident = "Dell Latitude E6420",
-- 
1.7.4.1