linux-kernel - [PATCH 4.4 52/58] Input: i8042 - add Lenovo XiaoXin Air 12 to i8042 nomux list

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Message-Id: <20200720152749.865557209@linuxfoundation.org>
Date:   Mon, 20 Jul 2020 17:37:08 +0200
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org, David Pedersen <limero1337@...il.com>,
        Dmitry Torokhov <dmitry.torokhov@...il.com>
Subject: [PATCH 4.4 52/58] Input: i8042 - add Lenovo XiaoXin Air 12 to i8042 nomux list

From: David Pedersen <limero1337@...il.com>

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@...il.com>
Cc: stable@...r.kernel.org
Link: https://lore.kernel.org/r/20200625133754.291325-1-limero1337@gmail.com
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@...il.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.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
@@ -430,6 +430,13 @@ static const struct dmi_system_id __init
 		},
 	},
 	{
+		/* Lenovo XiaoXin Air 12 */
+		.matches = {
+			DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
+			DMI_MATCH(DMI_PRODUCT_NAME, "80UN"),
+		},
+	},
+	{
 		.matches = {
 			DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
 			DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 1360"),