HID: logitech: move dj devices to the HID++ module

Devices connected through the Logitech Wireless Receiver are HID++ devices.
We can handle them here to benefit from this new module and activate
enhaced support of the various wireless touchpad or mice with touch
sensors on them.

Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Tested-by: Andrew de los Reyes <adlr@chromium.org>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
diff --git a/drivers/hid/hid-logitech-hidpp.c b/drivers/hid/hid-logitech-hidpp.c
index 7dd9163..48dec39 100644
--- a/drivers/hid/hid-logitech-hidpp.c
+++ b/drivers/hid/hid-logitech-hidpp.c
@@ -777,15 +777,17 @@
 	hid_device_io_start(hdev);
 
 	connected = hidpp_is_connected(hidpp);
-	if (!connected) {
-		hid_err(hdev, "Device not connected");
-		goto hid_parse_fail;
-	}
+	if (id->group != HID_GROUP_LOGITECH_DJ_DEVICE) {
+		if (!connected) {
+			hid_err(hdev, "Device not connected");
+			goto hid_parse_fail;
+		}
 
-	/* the device is connected, we can ask for its name */
-	hid_info(hdev, "HID++ %u.%u device connected.\n",
-		 hidpp->protocol_major, hidpp->protocol_minor);
-	hidpp_overwrite_name(hdev);
+		/* the device is connected, we can ask for its name */
+		hid_info(hdev, "HID++ %u.%u device connected.\n",
+			 hidpp->protocol_major, hidpp->protocol_minor);
+		hidpp_overwrite_name(hdev);
+	}
 
 	if (hidpp->quirks & HIDPP_QUIRK_CLASS_WTP) {
 		ret = wtp_get_config(hidpp);
@@ -824,6 +826,9 @@
 	  HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_LOGITECH,
 		USB_DEVICE_ID_LOGITECH_T651),
 	  .driver_data = HIDPP_QUIRK_CLASS_WTP },
+
+	{ HID_DEVICE(BUS_USB, HID_GROUP_LOGITECH_DJ_DEVICE,
+		USB_VENDOR_ID_LOGITECH, HID_ANY_ID)},
 	{}
 };