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Subject[PATCH 4.19 25/47] HID: multitouch: Add pointstick support for ALPS Touchpad
Date
[ Upstream commit 0a95fc733da375de0688d0f1fd3a2869a1c1d499 ]

There's a new ALPS touchpad/pointstick combo device that requires
MT_CLS_WIN_8_DUAL to make its pointsitck work as a mouse.

The device can be found on HP ZBook 17 G5.

Signed-off-by: Kai-Heng Feng <kai.heng.feng@canonical.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/hid/hid-ids.h | 1 +
drivers/hid/hid-multitouch.c | 4 ++++
2 files changed, 5 insertions(+)

diff --git a/drivers/hid/hid-ids.h b/drivers/hid/hid-ids.h
index 97b4ecab7c12..50b3c0d89c9c 100644
--- a/drivers/hid/hid-ids.h
+++ b/drivers/hid/hid-ids.h
@@ -82,6 +82,7 @@
#define HID_DEVICE_ID_ALPS_U1_DUAL_3BTN_PTP 0x1220
#define HID_DEVICE_ID_ALPS_U1 0x1215
#define HID_DEVICE_ID_ALPS_T4_BTNLESS 0x120C
+#define HID_DEVICE_ID_ALPS_1222 0x1222


#define USB_VENDOR_ID_AMI 0x046b
diff --git a/drivers/hid/hid-multitouch.c b/drivers/hid/hid-multitouch.c
index 184e49036e1d..f9167d0e095c 100644
--- a/drivers/hid/hid-multitouch.c
+++ b/drivers/hid/hid-multitouch.c
@@ -1788,6 +1788,10 @@ static const struct hid_device_id mt_devices[] = {
HID_DEVICE(BUS_I2C, HID_GROUP_MULTITOUCH_WIN_8,
USB_VENDOR_ID_ALPS_JP,
HID_DEVICE_ID_ALPS_U1_DUAL_3BTN_PTP) },
+ { .driver_data = MT_CLS_WIN_8_DUAL,
+ HID_DEVICE(BUS_I2C, HID_GROUP_MULTITOUCH_WIN_8,
+ USB_VENDOR_ID_ALPS_JP,
+ HID_DEVICE_ID_ALPS_1222) },

/* Lenovo X1 TAB Gen 2 */
{ .driver_data = MT_CLS_WIN_8_DUAL,
--
2.20.1


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