HID: hid-multitouch: add one new multitouch device's VID/PID

This patch adds support for the CSR panel built by XAT.
Signed-off-by: Ice Chien <ice.chien@accupoint.com.tw>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>

drivers/hid/Kconfig

@@ -335,6 +335,7 @@ config HID_MULTITOUCH
 	  - Stantum multitouch panels
 	  - Touch International Panels
 	  - Unitec Panels
+	  - XAT optical touch panels
 
 	  If unsure, say N.
 

drivers/hid/hid-core.c

@@ -1500,6 +1500,7 @@ static const struct hid_device_id hid_have_special_driver[] = {
 	{ HID_USB_DEVICE(USB_VENDOR_ID_WALTOP, USB_DEVICE_ID_WALTOP_SLIM_TABLET_12_1_INCH) },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_WALTOP, USB_DEVICE_ID_WALTOP_MEDIA_TABLET_10_6_INCH) },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_WALTOP, USB_DEVICE_ID_WALTOP_MEDIA_TABLET_14_1_INCH) },
+	{ HID_USB_DEVICE(USB_VENDOR_ID_XAT, USB_DEVICE_ID_XAT_CSR) },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_X_TENSIONS, USB_DEVICE_ID_SPEEDLINK_VAD_CEZANNE) },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_ZEROPLUS, 0x0005) },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_ZEROPLUS, 0x0030) },

drivers/hid/hid-ids.h

@@ -667,6 +667,9 @@
 #define USB_VENDOR_ID_X_TENSIONS               0x1ae7
 #define USB_DEVICE_ID_SPEEDLINK_VAD_CEZANNE    0x9001
 
+#define USB_VENDOR_ID_XAT	0x2505
+#define USB_DEVICE_ID_XAT_CSR	0x0220
+
 #define USB_VENDOR_ID_YEALINK		0x6993
 #define USB_DEVICE_ID_YEALINK_P1K_P4K_B2K	0xb001
 

drivers/hid/hid-multitouch.c

@@ -699,6 +699,10 @@ static const struct hid_device_id mt_devices[] = {
 	{ .driver_data = MT_CLS_DEFAULT,
 		HID_USB_DEVICE(USB_VENDOR_ID_UNITEC,
 			USB_DEVICE_ID_UNITEC_USB_TOUCH_0A19) },
+	/* XAT */
+	{ .driver_data = MT_CLS_DEFAULT,
+		HID_USB_DEVICE(USB_VENDOR_ID_XAT,
+			USB_DEVICE_ID_XAT_CSR) },
 
 	{ }
 };