[PATCH] HID: multitouch: Add quirk for HONOR GLO-GXXX touchpad

[PATCH] HID: multitouch: Add quirk for HONOR GLO-GXXX touchpad

[Aoba K]

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>
---
 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 e31be0cb8b..f655a76ff2 100644
--- a/drivers/hid/hid-multitouch.c
+++ b/drivers/hid/hid-multitouch.c
@@ -2055,6 +2055,11 @@ 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,

base-commit: 28d3fe32354701decc3e76d89712569c269b5e4f

---
2.41.0

Re: [PATCH] HID: multitouch: Add quirk for HONOR GLO-GXXX touchpad

[Jiri Kosina]

On Tue, 7 Nov 2023, Aoba K wrote:

> 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.

Hi,

unfortunately, your patch has been whitespace-damaged by your mail client. 
Could you please fix that and resend?

Thanks,

-- 
Jiri Kosina
SUSE Labs