From: Feng Tang <feng.tang@intel.com>
Date: Mon, 22 Oct 2012 23:31:14 +0000 (+0200)
Subject: ACPI / x86: Add quirk for "CheckPoint P-20-00" to not use bridge _CRS_ info
X-Git-Tag: next-20121024~35^2^2~6
X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=ebe217ed872a937e75c2a3ac9ed15b0f8eccca83;p=karo-tx-linux.git

ACPI / x86: Add quirk for "CheckPoint P-20-00" to not use bridge _CRS_ info

This is to fix a regression https://bugzilla.kernel.org/show_bug.cgi?id=47981

The CheckPoint P-20-00 works ok before new machines (2008 and later) are
forced to use the bridge _CRS info by default in 2.6.34. Add this quirk
to restore its old way of working: not using bridge _CRS info.

Signed-off-by: Feng Tang <feng.tang@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---

diff --git a/arch/x86/pci/acpi.c b/arch/x86/pci/acpi.c
index 192397c98606..7010c199b4f0 100644
--- a/arch/x86/pci/acpi.c
+++ b/arch/x86/pci/acpi.c
@@ -98,6 +98,16 @@ static const struct dmi_system_id pci_use_crs_table[] __initconst = {
 			DMI_MATCH(DMI_BIOS_VERSION, "6JET85WW (1.43 )"),
 		},
 	},
+	/* https://bugzilla.kernel.org/show_bug.cgi?id=47981 */
+	{
+		.callback = set_nouse_crs,
+		.ident = "CheckPoint P-20-00",
+		.matches = {
+			DMI_MATCH(DMI_SYS_VENDOR, "CheckPoint"),
+			DMI_MATCH(DMI_PRODUCT_NAME, "P-20-00"),
+			DMI_MATCH(DMI_BOARD_NAME, "Bridgeport"),
+		},
+	},
 	{}
 };