linux-kernel - [PATCH] x86: Fix reboot issue for Dell Optiplex 990

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Date:	Thu, 20 Oct 2011 17:39:11 +0200
From:	Thomas Renninger <trenn@...e.de>
To:	linux-kernel@...r.kernel.org
Cc:	Ingo Molnar <mingo@...hat.com>, chaas@...e.de, stable@...nel.org
Subject: [PATCH] x86: Fix reboot issue for Dell Optiplex 990

This was the only reboot=x option that worked for this desktop.


Signed-off-by: Thomas Renninger <trenn@...e.de>
Tested-by: Christian Haas <chaas@...e.de>
CC: linux-acpi@...r.kernel.org
CC: stable@...nel.org

---
 arch/x86/kernel/reboot.c |    9 +++++++++
 1 file changed, 9 insertions(+)

Index: linux-3.1-rc9-master/arch/x86/kernel/reboot.c
===================================================================
--- linux-3.1-rc9-master.orig/arch/x86/kernel/reboot.c
+++ linux-3.1-rc9-master/arch/x86/kernel/reboot.c
@@ -443,6 +443,15 @@ static struct dmi_system_id __initdata p
 			DMI_MATCH(DMI_PRODUCT_NAME, "Latitude E6420"),
 		},
 	},
+	{	/* Handle problems with rebooting on the Latitude E6420. */
+		.callback = set_pci_reboot,
+		.ident = "Dell Optiplex 990",
+		.matches = {
+			/* Found in BIOS version A06 */
+			DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
+			DMI_MATCH(DMI_PRODUCT_NAME, "OptiPlex 990"),
+		},
+	},
 	{ }
 };
 
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