ACPI: fix Thinkpad 600/600E/600X interrupts

The root cause of this bug shows that this machine
could not possibly run an ACPI-aware OS without a
model specific workaround.

http://bugzilla.kernel.org/show_bug.cgi?id=5966

Signed-off-by: Len Brown <len.brown@intel.com>

1 files changed, 22 insertions, 1 deletions

diff --git a/arch/i386/kernel/acpi/boot.c b/arch/i386/kernel/acpi/boot.c
index e5eb97a910ed..9ea5b8ecc7e1 100644
--- a/arch/i386/kernel/acpi/boot.c
+++ b/arch/i386/kernel/acpi/boot.c
@@ -1072,7 +1072,28 @@ static struct dmi_system_id __initdata acpi_dmi_table[] = {
                                "ASUS A7V ACPI BIOS Revision 1007"),
                      },
          },
-
+        {
+                /*
+                 * Latest BIOS for IBM 600E (1.16) has bad pcinum
+                 * for LPC bridge, which is needed for the PCI
+                 * interrupt links to work. DSDT fix is in bug 5966.
+                 * 2645, 2646 model numbers are shared with 600/600E/600X
+                 */
+         .callback = disable_acpi_irq,
+         .ident = "IBM Thinkpad 600 Series 2645",
+         .matches = {
+                     DMI_MATCH(DMI_BOARD_VENDOR, "IBM"),
+                     DMI_MATCH(DMI_BOARD_NAME, "2645"),
+                     },
+         },
+        {
+         .callback = disable_acpi_irq,
+         .ident = "IBM Thinkpad 600 Series 2646",
+         .matches = {
+                     DMI_MATCH(DMI_BOARD_VENDOR, "IBM"),
+                     DMI_MATCH(DMI_BOARD_NAME, "2646"),
+                     },
+         },
         /*
          * Boxes that need ACPI PCI IRQ routing and PCI scan disabled
          */