Input: i8042 - add Lenovo XiaoXin Air 12 to i8042 nomux list

commit 17d51429da722cd8fc77a365a112f008abf4f8b3 upstream.

This fixes two finger trackpad scroll on the Lenovo XiaoXin Air 12.
Without nomux, the trackpad behaves as if only one finger is present and
moves the cursor when trying to scroll.

Signed-off-by: David Pedersen <limero1337@gmail.com>
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/r/20200625133754.291325-1-limero1337@gmail.com
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/input/serio/i8042-x86ia64io.h b/drivers/input/serio/i8042-x86ia64io.h
index c4201d1da239cdfc28e1aeec80df2bafe7ec9b1d..8134c7f928165996a4d3096da8ec251063fd6894 100644 (file)
--- a/drivers/input/serio/i8042-x86ia64io.h
+++ b/drivers/input/serio/i8042-x86ia64io.h
@@ -429,6 +429,13 @@ static const struct dmi_system_id __initconst i8042_dmi_nomux_table[] = {
                        DMI_MATCH(DMI_PRODUCT_NAME, "076804U"),
                },
        },
+       {
+               /* Lenovo XiaoXin Air 12 */
+               .matches = {
+                       DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
+                       DMI_MATCH(DMI_PRODUCT_NAME, "80UN"),
+               },
+       },
        {
                .matches = {
                        DMI_MATCH(DMI_SYS_VENDOR, "Acer"),