[PATCH 3.18 18/69] Input: i8042 - add TUXEDO BU1406 (N24_25BU) to the nomux list

[Greg Kroah-Hartman]

3.18-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Dmitry Torokhov <dmitry.torok...@gmail.com>


[ Upstream commit a4c2a13129f7c5bcf81704c06851601593303fd5 ]

TUXEDO BU1406 does not implement active multiplexing mode properly,
and takes around 550 ms in i8042_set_mux_mode(). Given that the
device does not have external AUX port, there is no downside in
disabling the MUX mode.

Reported-by: Paul Menzel <pmen...@molgen.mpg.de>
Suggested-by: Vojtech Pavlik <vojt...@suse.cz>
Reviewed-by: Marcos Paulo de Souza <marcos.souza....@gmail.com>
Signed-off-by: Dmitry Torokhov <dmitry.torok...@gmail.com>
Signed-off-by: Sasha Levin <alexander.le...@verizon.com>
Signed-off-by: Greg Kroah-Hartman <gre...@linuxfoundation.org>
---
 drivers/input/serio/i8042-x86ia64io.h |    7 +++++++
 1 file changed, 7 insertions(+)

--- a/drivers/input/serio/i8042-x86ia64io.h
+++ b/drivers/input/serio/i8042-x86ia64io.h
@@ -514,6 +514,13 @@ static const struct dmi_system_id __init
                        DMI_MATCH(DMI_PRODUCT_NAME, "IC4I"),
                },
        },
+       {
+               /* TUXEDO BU1406 */
+               .matches = {
+                       DMI_MATCH(DMI_SYS_VENDOR, "Notebook"),
+                       DMI_MATCH(DMI_PRODUCT_NAME, "N24_25BU"),
+               },
+       },
        { }
 };