linux-kernel - [tip:x86/urgent] x86, reboot: Acer Aspire One A110 reboot quirk

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Message-ID: <tip-b49c78d4827be8d7e67e5b94adac6b30a4a9ad14@git.kernel.org>
Date:	Wed, 6 Jul 2011 04:07:08 GMT
From:	tip-bot for Peter Chubb <peter.chubb@...ta.com.au>
To:	linux-tip-commits@...r.kernel.org
Cc:	linux-kernel@...r.kernel.org, hpa@...or.com, mingo@...hat.com,
	tglx@...utronix.de, peter.chubb@...ta.com.au
Subject: [tip:x86/urgent] x86, reboot: Acer Aspire One A110 reboot quirk

Commit-ID:  b49c78d4827be8d7e67e5b94adac6b30a4a9ad14
Gitweb:     http://git.kernel.org/tip/b49c78d4827be8d7e67e5b94adac6b30a4a9ad14
Author:     Peter Chubb <peter.chubb@...ta.com.au>
AuthorDate: Wed, 6 Jul 2011 10:56:30 +1000
Committer:  H. Peter Anvin <hpa@...or.com>
CommitDate: Tue, 5 Jul 2011 19:43:23 -0700

x86, reboot: Acer Aspire One A110 reboot quirk

Since git commit
  660e34cebf0a11d54f2d5dd8838607452355f321 x86: reorder reboot method
  preferences,
my Acer Aspire One hangs on reboot.  It appears that its ACPI method
for rebooting is broken.  The attached patch adds a quirk so that the
machine will reboot via the BIOS.

[ hpa: verified that the ACPI control on this machine is just plain broken. ]

Signed-off-by: Peter Chubb <peter.chubb@...ta.com.au>
Link: http://lkml.kernel.org/r/w439iki5vl.wl%25peter@chubb.wattle.id.au
Signed-off-by: H. Peter Anvin <hpa@...or.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 0c016f7..4f0d46f 100644
--- a/arch/x86/kernel/reboot.c
+++ b/arch/x86/kernel/reboot.c
@@ -294,6 +294,14 @@ static struct dmi_system_id __initdata reboot_dmi_table[] = {
 			DMI_MATCH(DMI_BOARD_NAME, "VersaLogic Menlow board"),
 		},
 	},
+	{ /* Handle reboot issue on Acer Aspire one */
+		.callback = set_bios_reboot,
+		.ident = "Acer Aspire One A110",
+		.matches = {
+			DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
+			DMI_MATCH(DMI_PRODUCT_NAME, "AOA110"),
+		},
+	},
 	{ }
 };
 
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