Commit 4043155a authored Mar 08, 2018 by Dennis Wassenberg Committed by Greg Kroah-Hartman Apr 08, 2018

Input: i8042 - add Lenovo ThinkPad L460 to i8042 reset list



commit b56af54a upstream.

Reset i8042 before probing because of insufficient BIOS initialisation of
the i8042 serial controller. This makes Synaptics touchpad detection
possible. Without resetting the Synaptics touchpad is not detected because
there are always NACK messages from AUX port.

Signed-off-by: Dennis Wassenberg <dennis.wassenberg@secunet.com>
Cc: stable@vger.kernel.org
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

parent ac72f008

drivers/input/serio/i8042-x86ia64io.h

+7 −0

Original line number	Diff line number	Diff line
		@@ -620,6 +620,13 @@ static const struct dmi_system_id __initconst i8042_dmi_reset_table[] = {
		DMI_MATCH(DMI_PRODUCT_NAME, "20046"),
		},
		},
		{
		/* Lenovo ThinkPad L460 */
		.matches = {
		DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
		DMI_MATCH(DMI_PRODUCT_VERSION, "ThinkPad L460"),
		},
		},
		{
		/* Clevo P650RS, 650RP6, Sager NP8152-S, and others */
		.matches = {