linux-kernel - [PATCH] acpi: Add Toshiba NB100 to Vista

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Message-ID: <5266916F.5020507@linux.com>
Date:	Tue, 22 Oct 2013 16:53:35 +0200
From:	Levente Kurusa <levex@...ux.com>
To:	Len Brown <lenb@...nel.org>,
	"Rafael J. Wysocki" <rjw@...ysocki.net>,
	Robert Hancock <hancockrwd@...il.com>
CC:	Aaron Lu <aaron.lu@...el.com>,
	"ACPI List" <linux-acpi@...r.kernel.org>,
	"LKML" <linux-kernel@...r.kernel.org>
Subject: [PATCH] acpi: Add Toshiba NB100 to Vista _OSI blacklist

This patch adds Toshiba NB100 to the Vista _OSI blacklist.

The _OSI(Windows 2006) method is bugged on the netbook resulting in messed up
PCI IRQ Routing information. This was observed on a netbook,
whose SATA controller mode was set to Compatibility mode.
The controller would then issue IRQs to IRQ#16 instead of
IRQ#20, where it should have been.
No side-effects were found during testing, everything is
working as it did before.

See thread:
http://marc.info/?t=137862230200001&r=1&w=2
http://www.spinics.net/lists/linux-ide/msg46173.html


Signed-off-by: Levente Kurusa <levex@...ux.com>
Reviewed-by: Robert Hancock <hancockrwd@...il.com>
---
diff --git a/drivers/acpi/blacklist.c b/drivers/acpi/blacklist.c
index cb96296..34d4d1a 100644
--- a/drivers/acpi/blacklist.c
+++ b/drivers/acpi/blacklist.c
@@ -267,6 +267,14 @@ static struct dmi_system_id acpi_osi_dmi_table[] __initdata = {
 		     DMI_MATCH(DMI_PRODUCT_NAME, "Satellite P305D"),
 		},
 	},
+	{
+	.callback = dmi_disable_osi_vista,
+	.ident = "Toshiba NB100",
+	.matches = {
+		     DMI_MATCH(DMI_SYS_VENDOR, "TOSHIBA"),
+		     DMI_MATCH(DMI_PRODUCT_NAME, "NB100"),
+		},
+	},

 	/*
 	 * BIOS invocation of _OSI(Linux) is almost always a BIOS bug.
--
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