linux-kernel - [PATCH] HID: multitouch: Add quirk for HONOR MagicBook Art 14 touchpad

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Message-ID: <293F58F16AA131CA+20240929051832.869861-1-wangyuli@uniontech.com>
Date: Sun, 29 Sep 2024 13:18:32 +0800
From: WangYuli <wangyuli@...ontech.com>
To: jikos@...nel.org,
	bentiss@...nel.org,
	guanwentao@...ontech.com
Cc: linux-input@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	zhanjun@...ontech.com,
	WangYuli <wangyuli@...ontech.com>
Subject: [PATCH] HID: multitouch: Add quirk for HONOR MagicBook Art 14 touchpad

[Problem]
It sometimes after reboot change output from Touchpad to Mouse,
evtest show it output from "TOPS0102:00 35CC:0104 Touchpad"
to "TOPS0102:00 35CC:0104 Mouse",and it works as A mouse.

[Solution]
Like GLO-GXXX,As a workaround, it is possible to call
MT_QUIRK_FORCE_GET_FEATURE to force set feature in mt_set_input_mode
for such special touchpad device.

Link: https://gitlab.freedesktop.org/libinput/libinput/-/issues/1040
Link: https://gitlab.freedesktop.org/guanwentao/libinput/-/commit/8624bc6d7539ba01e996fefb58ce393e6f129db8
Signed-off-by: Wentao Guan <guanwentao@...ontech.com>
Signed-off-by: WangYuli <wangyuli@...ontech.com>
---
 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 99812c0f830b..a1e0c3db3d4c 100644
--- a/drivers/hid/hid-multitouch.c
+++ b/drivers/hid/hid-multitouch.c
@@ -2082,6 +2082,11 @@ static const struct hid_device_id mt_devices[] = {
 		HID_DEVICE(BUS_I2C, HID_GROUP_MULTITOUCH_WIN_8,
 			0x347d, 0x7853) },
 
+	/* HONOR MagicBook Art 14 touchpad */
+	{ .driver_data = MT_CLS_VTL,
+		HID_DEVICE(BUS_I2C, HID_GROUP_MULTITOUCH_WIN_8,
+			0x35cc, 0x0104) },
+
 	/* Ilitek dual touch panel */
 	{  .driver_data = MT_CLS_NSMU,
 		MT_USB_DEVICE(USB_VENDOR_ID_ILITEK,
-- 
2.45.2