Input: i8042 - add Thinkpad R31 to nomux list

Thinkpad R31 needs i8042 nomux quirk.  Stops jittery jumping mouse
and random keyboard input. Fixes kernel bug #11723.  Cherry picked
from Ubuntu who have sometimes (on-again-off-again) had a fix in
their patched kernels.

Signed-off-by: Colin B Macdonald <cbm@m.fsf.org>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>

1 files changed, 7 insertions, 0 deletions

diff --git a/drivers/input/serio/i8042-x86ia64io.h b/drivers/input/serio/i8042-x86ia64io.h
index fe732a574ec2..9f39e26a53d8 100644
--- a/drivers/input/serio/i8042-x86ia64io.h
+++ b/drivers/input/serio/i8042-x86ia64io.h
@@ -322,6 +322,13 @@ static struct dmi_system_id __initdata i8042_dmi_nomux_table[] = {
                         DMI_MATCH(DMI_PRODUCT_NAME, "N34AS6"),
                 },
         },
+        {
+                .ident = "IBM 2656",
+                .matches = {
+                        DMI_MATCH(DMI_SYS_VENDOR, "IBM"),
+                        DMI_MATCH(DMI_PRODUCT_NAME, "2656"),
+                },
+        },
         { }
 };