Input: add support for Hanwang tablets

Add support for Art Master III tablet of BeiJing HanwangTechnology Co, Ltd.

Signed-off-by: Xing Wei <weixing@hanwang.com.cn>
Acked-by: Jiri Kosina <jkosina@suse.cz>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
diff --git a/drivers/hid/hid-core.c b/drivers/hid/hid-core.c
index e635199..baa25ad 100644
--- a/drivers/hid/hid-core.c
+++ b/drivers/hid/hid-core.c
@@ -1766,6 +1766,11 @@
 		    hdev->product <= USB_DEVICE_ID_SOUNDGRAPH_IMON_LAST)
 			return true;
 		break;
+	case USB_VENDOR_ID_HANWANG:
+		if (hdev->product >= USB_DEVICE_ID_HANWANG_TABLET_FIRST &&
+		    hdev->product <= USB_DEVICE_ID_HANWANG_TABLET_LAST)
+			return true;
+		break;
 	}
 
 	if (hdev->type == HID_TYPE_USBMOUSE &&
diff --git a/drivers/hid/hid-ids.h b/drivers/hid/hid-ids.h
index d3fc13a..11af537 100644
--- a/drivers/hid/hid-ids.h
+++ b/drivers/hid/hid-ids.h
@@ -291,6 +291,10 @@
 #define USB_DEVICE_ID_GYRATION_REMOTE_2 0x0003
 #define USB_DEVICE_ID_GYRATION_REMOTE_3 0x0008
 
+#define USB_VENDOR_ID_HANWANG		0x0b57
+#define USB_DEVICE_ID_HANWANG_TABLET_FIRST	0x5000
+#define USB_DEVICE_ID_HANWANG_TABLET_LAST	0x8fff
+
 #define USB_VENDOR_ID_HAPP		0x078b
 #define USB_DEVICE_ID_UGCI_DRIVING	0x0010
 #define USB_DEVICE_ID_UGCI_FLYING	0x0020