linux-kernel - [PATCH 3.12 055/100] HID: multitouch: Add MT_QUIRK_NOT_SEEN_MEANS

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Date:   Fri, 19 Aug 2016 09:10:54 +0200
From:   Jiri Slaby <jslaby@...e.cz>
To:     stable@...r.kernel.org
Cc:     linux-kernel@...r.kernel.org,
        Benjamin Tissoires <benjamin.tissoires@...hat.com>,
        Jiri Kosina <jkosina@...e.cz>,
        Oliver Neukum <oliver@...kum.org>, Jiri Slaby <jslaby@...e.cz>
Subject: [PATCH 3.12 055/100] HID: multitouch: Add MT_QUIRK_NOT_SEEN_MEANS_UP to Surface Pro 3

From: Benjamin Tissoires <benjamin.tissoires@...hat.com>

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

===============

commit a80e803a2ae4efa5efbcfa97dcbbc48d15226cf9 upstream.

The firmware found in the touch screen of an SP3 is buggy and may miss
to send lift off reports for contacts. Try to work around that issue by
using MT_QUIRK_NOT_SEEN_MEANS_UP.

based on a patch from: Daniel Martin <consume.noise@...il.com>

Signed-off-by: Benjamin Tissoires <benjamin.tissoires@...hat.com>
Signed-off-by: Jiri Kosina <jkosina@...e.cz>
Cc: Oliver Neukum <oliver@...kum.org>
Signed-off-by: Jiri Slaby <jslaby@...e.cz>
---
 drivers/hid/hid-multitouch.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/drivers/hid/hid-multitouch.c b/drivers/hid/hid-multitouch.c
index e7c2af5d3811..0ffc0a4d5182 100644
--- a/drivers/hid/hid-multitouch.c
+++ b/drivers/hid/hid-multitouch.c
@@ -1281,6 +1281,11 @@ static const struct hid_device_id mt_devices[] = {
 		MT_USB_DEVICE(USB_VENDOR_ID_PENMOUNT,
 			USB_DEVICE_ID_PENMOUNT_PCI) },
 
+	/* Ntrig Panel */
+	{ .driver_data = MT_CLS_NSMU,
+		HID_DEVICE(BUS_I2C, HID_GROUP_MULTITOUCH_WIN_8,
+			USB_VENDOR_ID_NTRIG, 0x1b05) },
+
 	/* PixArt optical touch screen */
 	{ .driver_data = MT_CLS_INRANGE_CONTACTNUMBER,
 		MT_USB_DEVICE(USB_VENDOR_ID_PIXART,
-- 
2.9.3