USB: serial: ftdi_sio: add Id for Physik Instrumente E-870

This adds support for the Physik Instrumente E-870 PIShift Drive
Electronics, a Piezo motor driver.
Signed-off-by: Martin Teichmann <martin.teichmann@xfel.eu>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Johan Hovold <johan@kernel.org>

drivers/usb/serial/ftdi_sio.c

@@ -893,6 +893,7 @@ static const struct usb_device_id id_table_combined[] = {
 	{ USB_DEVICE(PI_VID, PI_1014_PID) },
 	{ USB_DEVICE(PI_VID, PI_1015_PID) },
 	{ USB_DEVICE(PI_VID, PI_1016_PID) },
+	{ USB_DEVICE(PI_VID, PI_E870_PID) },
 	{ USB_DEVICE(KONDO_VID, KONDO_USB_SERIAL_PID) },
 	{ USB_DEVICE(BAYER_VID, BAYER_CONTOUR_CABLE_PID) },
 	{ USB_DEVICE(FTDI_VID, MARVELL_OPENRD_PID),

drivers/usb/serial/ftdi_sio_ids.h

@@ -978,6 +978,7 @@
 #define PI_1014_PID	0x1014  /* PI Device */
 #define PI_1015_PID	0x1015  /* PI Device */
 #define PI_1016_PID	0x1016  /* PI Digital Servo Module */
+#define PI_E870_PID	0x1019  /* PI E-870 Piezomotor Controller */
 
 /*
  * Kondo Kagaku Co.Ltd.