linux-kernel - [PATCH 3.14 49/73] Input: synaptics - adjust min/max on Thinkpad E540

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Date:	Fri,  5 Dec 2014 14:44:55 -0800
From:	Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:	linux-kernel@...r.kernel.org
Cc:	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	stable@...r.kernel.org, Binyamin Sagal <bensagal@...il.com>,
	Dmitry Torokhov <dmitry.torokhov@...il.com>
Subject: [PATCH 3.14 49/73] Input: synaptics - adjust min/max on Thinkpad E540

3.14-stable review patch.  If anyone has any objections, please let me know.

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

From: Ben Sagal <bensagal@...il.com>

commit bce4f9e764c36bc35dd5c9cf9e057c09f422397d upstream.

The LEN2006 Synaptics touchpad (as found in Thinkpad E540) returns wrong
min max values.

touchpad-edge-detector output:
>  Touchpad SynPS/2 Synaptics TouchPad on /dev/input/event6
>  Move one finger around the touchpad to detect the actual edges
>  Kernel says:    x [1472..5674], y [1408..4684]
>  Touchpad sends: x [1264..5675], y [1171..4688]

Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=88211
Signed-off-by: Binyamin Sagal <bensagal@...il.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@...il.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>

---
 drivers/input/mouse/synaptics.c |    4 ++++
 1 file changed, 4 insertions(+)

--- a/drivers/input/mouse/synaptics.c
+++ b/drivers/input/mouse/synaptics.c
@@ -140,6 +140,10 @@ static const struct min_max_quirk min_ma
 		(const char * const []){"LEN2001", NULL},
 		1024, 5022, 2508, 4832
 	},
+	{
+		(const char * const []){"LEN2006", NULL},
+		1264, 5675, 1171, 4688
+	},
 	{ }
 };
 


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