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From: Sasha Levin <sashal@kernel.org>
To: linux-kernel@vger.kernel.org, stable@vger.kernel.org
Cc: Aoba K <nexp_0x17@outlook.com>, Jiri Kosina <jkosina@suse.cz>,
	Sasha Levin <sashal@kernel.org>,
	jikos@kernel.org, benjamin.tissoires@redhat.com,
	linux-input@vger.kernel.org
Subject: [PATCH AUTOSEL 5.15 13/15] HID: multitouch: Add quirk for HONOR GLO-GXXX touchpad
Date: Tue, 28 Nov 2023 16:08:34 -0500	[thread overview]
Message-ID: <20231128210843.876493-13-sashal@kernel.org> (raw)
In-Reply-To: <20231128210843.876493-1-sashal@kernel.org>

From: Aoba K <nexp_0x17@outlook.com>

[ Upstream commit 9ffccb691adb854e7b7f3ee57fbbda12ff70533f ]

Honor MagicBook 13 2023 has a touchpad which do not switch to the multitouch
mode until the input mode feature is written by the host.  The touchpad do
report the input mode at touchpad(3), while itself working under mouse mode. As
a workaround, it is possible to call MT_QUIRE_FORCE_GET_FEATURE to force set
feature in mt_set_input_mode for such device.

The touchpad reports as BLTP7853, which cannot retrive any useful manufacture
information on the internel by this string at present.  As the serial number of
the laptop is GLO-G52, while DMI info reports the laptop serial number as
GLO-GXXX, this workaround should applied to all models which has the GLO-GXXX.

Signed-off-by: Aoba K <nexp_0x17@outlook.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 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 4ec8ca06a0bd0..fc04538d93cbb 100644
--- a/drivers/hid/hid-multitouch.c
+++ b/drivers/hid/hid-multitouch.c
@@ -2046,6 +2046,11 @@ static const struct hid_device_id mt_devices[] = {
 		MT_USB_DEVICE(USB_VENDOR_ID_HANVON_ALT,
 			USB_DEVICE_ID_HANVON_ALT_MULTITOUCH) },
 
+	/* HONOR GLO-GXXX panel */
+	{ .driver_data = MT_CLS_VTL,
+		HID_DEVICE(BUS_I2C, HID_GROUP_MULTITOUCH_WIN_8,
+			0x347d, 0x7853) },
+
 	/* Ilitek dual touch panel */
 	{  .driver_data = MT_CLS_NSMU,
 		MT_USB_DEVICE(USB_VENDOR_ID_ILITEK,
-- 
2.42.0


      parent reply	other threads:[~2023-11-28 21:09 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <20231128210843.876493-1-sashal@kernel.org>
2023-11-28 21:08 ` [PATCH AUTOSEL 5.15 10/15] HID: glorious: fix Glorious Model I HID report Sasha Levin
2023-11-28 21:08 ` [PATCH AUTOSEL 5.15 11/15] HID: add ALWAYS_POLL quirk for Apple kb Sasha Levin
2023-11-28 21:08 ` [PATCH AUTOSEL 5.15 12/15] HID: hid-asus: reset the backlight brightness level on resume Sasha Levin
2023-11-28 21:08 ` Sasha Levin [this message]

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