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 192397c..7010c19 100644 (file)
--- 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"),
+               },
+       },
        {}
 };