linux-kernel - [PATCH 3.16 141/202] Input: elantech - force needed quirks on Fujitsu H760

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Message-ID: <lsq.1556377989.303619649@decadent.org.uk>
Date:   Sat, 27 Apr 2019 16:13:09 +0100
From:   Ben Hutchings <ben@...adent.org.uk>
To:     linux-kernel@...r.kernel.org, stable@...r.kernel.org
CC:     akpm@...ux-foundation.org, Denis Kirjanov <kda@...ux-powerpc.org>,
        "Matti Kurkela" <Matti.Kurkela@....fi>,
        "Dmitry Torokhov" <dmitry.torokhov@...il.com>
Subject: [PATCH 3.16 141/202] Input: elantech - force needed quirks on
 Fujitsu H760

3.16.66-rc1 review patch.  If anyone has any objections, please let me know.

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

From: Matti Kurkela <Matti.Kurkela@....fi>

commit f9a703a54d16ba2470391c4b12236ee56591d50c upstream.

Just like Fujitsu CELSIUS H730, the H760 also has an Elantech touchpad with
the same quirks. Without this patch, the touchpad is useless out-of-the-box
as the mouse pointer won't move.

This patch makes the driver aware of both the crc_enabled=1 requirement and
the middle button, making the touchpad fully functional out-of-the-box.

Signed-off-by: Matti Kurkela <Matti.Kurkela@....fi>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@...il.com>
Signed-off-by: Ben Hutchings <ben@...adent.org.uk>
---
 drivers/input/mouse/elantech.c | 14 ++++++++++++++
 1 file changed, 14 insertions(+)

--- a/drivers/input/mouse/elantech.c
+++ b/drivers/input/mouse/elantech.c
@@ -1076,6 +1076,13 @@ static const struct dmi_system_id elante
 			DMI_MATCH(DMI_PRODUCT_NAME, "CELSIUS H730"),
 		},
 	},
+	{
+		/* Fujitsu H760 also has a middle button */
+		.matches = {
+			DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU"),
+			DMI_MATCH(DMI_PRODUCT_NAME, "CELSIUS H760"),
+		},
+	},
 #endif
 	{ }
 };
@@ -1420,6 +1427,13 @@ static const struct dmi_system_id elante
 		},
 	},
 	{
+		/* Fujitsu H760 does not work with crc_enabled == 0 */
+		.matches = {
+			DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU"),
+			DMI_MATCH(DMI_PRODUCT_NAME, "CELSIUS H760"),
+		},
+	},
+	{
 		/* Fujitsu LIFEBOOK E544  does not work with crc_enabled == 0 */
 		.matches = {
 			DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU"),