Input: i8042 - add Sony VAIOs to MUX blacklist

The Sony VPCZ1 doesn't support active multiplexing and trying to enable
it causes keyboard to stop working. Since most (all?) VAIOs do not have
external PS/2 ports nor they implement active multiplexing properly, and
trying to enable MUX usually messes up keyboard/touchpad, let's simply
disable MUX probing based on board name (VAIO).

Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>

diff --git a/drivers/input/serio/i8042-x86ia64io.h b/drivers/input/serio/i8042-x86ia64io.h
index ed7ad7416b24d8f40c9cccd61d8371f732b73441..a5475b5770863298609f7ab40850e03286529046 100644 (file)
--- a/drivers/input/serio/i8042-x86ia64io.h
+++ b/drivers/input/serio/i8042-x86ia64io.h
@@ -350,6 +350,17 @@ static const struct dmi_system_id __initconst i8042_dmi_nomux_table[] = {
                        DMI_MATCH(DMI_PRODUCT_NAME, "VGN-FZ240E"),
                },
        },
+       {
+               /*
+                * Most (all?) VAIOs do not have external PS/2 ports nor
+                * they implement active multiplexing properly, and
+                * MUX discovery usually messes up keyboard/touchpad.
+                */
+               .matches = {
+                       DMI_MATCH(DMI_SYS_VENDOR, "Sony Corporation"),
+                       DMI_MATCH(DMI_BOARD_NAME, "VAIO"),
+               },
+       },
        {
                /* Amoi M636/A737 */
                .matches = {