HID: multitouch: specify that Apple Touch Bar is direct

Currently the driver determines the device type based on the
application, but this value is not reliable on Apple Touch Bar, where
the application is HID_DG_TOUCHPAD even though this device is direct,
so add a quirk for the same.

Acked-by: Benjamin Tissoires <[email protected]>
Signed-off-by: Kerem Karabay <[email protected]>
Co-developed-by: Aditya Garg <[email protected]>
Signed-off-by: Aditya Garg <[email protected]>
Signed-off-by: Jiri Kosina <[email protected]>

Author: kekrby

drivers/hid/hid-multitouch.c

@@ -1349,6 +1349,13 @@ static int mt_touch_input_configured(struct hid_device *hdev,
 	if (td->serial_maybe)
 		mt_post_parse_default_settings(td, app);
 
+	/*
+	 * The application for Apple Touch Bars is HID_DG_TOUCHPAD,
+	 * but these devices are direct.
+	 */
+	if (cls->quirks & MT_QUIRK_APPLE_TOUCHBAR)
+		app->mt_flags |= INPUT_MT_DIRECT;
+
 	if (cls->is_indirect)
 		app->mt_flags |= INPUT_MT_POINTER;