[PATCH] HID: wacom: generic: Recognize WACOM_HID_WD_PEN as a type of pen collection

The WACOM_PEN_FIELD macro is used to determine if a given HID field should be
associated with pen input. This field includes several known collection types
that Wacom pen data is contained in, but the WACOM_HID_WD_PEN application
collection type is notably missing. This can result in fields within this
kind of collection being completely ignored by the `wacom_usage_mapping`
function, preventing the later '*_event' functions from being notified about
changes to their value.

Fixes: c9c095874a ("HID: wacom: generic: Support and use 'Custom HID' mode and usages")
Fixes: ac2423c975 ("HID: wacom: generic: add vendor defined touch")
Cc: stable@vger.kernel.org
Signed-off-by: Jason Gerecke <jason.gerecke@wacom.com>
---
 drivers/hid/wacom_wac.h | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/hid/wacom_wac.h b/drivers/hid/wacom_wac.h
index 8a03654048bf..feb62fd4dfc3 100644
--- a/drivers/hid/wacom_wac.h
+++ b/drivers/hid/wacom_wac.h

@@ -166,6 +166,7 @@
 				 ((f)->physical == HID_DG_PEN) || \
 				 ((f)->application == HID_DG_PEN) || \
 				 ((f)->application == HID_DG_DIGITIZER) || \
+				 ((f)->application == WACOM_HID_WD_PEN) || \
 				 ((f)->application == WACOM_HID_WD_DIGITIZER) || \
 				 ((f)->application == WACOM_HID_G9_PEN) || \
 				 ((f)->application == WACOM_HID_G11_PEN))

-- 
2.14.2