USB: serial: option: add u-blox LARA-L6 modem

Add LARA-L6 PIDs for three different USB compositions.

LARA-L6 module can be configured (by AT interface) in three different
USB modes:
* Default mode (Vendor ID: 0x1546 Product ID: 0x1341) with 4 serial
interfaces
* RmNet mode (Vendor ID: 0x1546 Product ID: 0x1342) with 4 serial
interfaces and 1 RmNet virtual network interface
* CDC-ECM mode (Vendor ID: 0x1546 Product ID: 0x1343) with 4 serial
interface and 1 CDC-ECM virtual network interface

In default mode LARA-L6 exposes the following interfaces:
If 0: Diagnostic
If 1: AT parser
If 2: AT parser
If 3: AT parser/alternative functions

In RmNet mode LARA-L6 exposes the following interfaces:
If 0: Diagnostic
If 1: AT parser
If 2: AT parser
If 3: AT parset/alternative functions
If 4: RMNET interface

In CDC-ECM mode LARA-L6 exposes the following interfaces:
If 0: Diagnostic
If 1: AT parser
If 2: AT parser
If 3: AT parset/alternative functions
If 4: CDC-ECM interface

Signed-off-by: Davide Tronchin <davide.tronchin.94@gmail.com>
[ johan: drop PID defines in favour of comments ]
Cc: stable@vger.kernel.org
Signed-off-by: Johan Hovold <johan@kernel.org>

diff --git a/drivers/usb/serial/option.c b/drivers/usb/serial/option.c
index f6babe5..c3b7f1d 100644 (file)
--- a/drivers/usb/serial/option.c
+++ b/drivers/usb/serial/option.c
@@ -162,6 +162,8 @@ static void option_instat_callback(struct urb *urb);
 #define NOVATELWIRELESS_PRODUCT_G2             0xA010
 #define NOVATELWIRELESS_PRODUCT_MC551          0xB001
 
+#define UBLOX_VENDOR_ID                                0x1546
+
 /* AMOI PRODUCTS */
 #define AMOI_VENDOR_ID                         0x1614
 #define AMOI_PRODUCT_H01                       0x0800
@@ -1130,6 +1132,12 @@ static const struct usb_device_id option_ids[] = {
          .driver_info = RSVD(4) },
        { USB_DEVICE(QUALCOMM_VENDOR_ID, 0x90fa),
          .driver_info = RSVD(3) },
+       /* u-blox products */
+       { USB_DEVICE(UBLOX_VENDOR_ID, 0x1341) },        /* u-blox LARA-L6 */
+       { USB_DEVICE(UBLOX_VENDOR_ID, 0x1342),          /* u-blox LARA-L6 (RMNET) */
+         .driver_info = RSVD(4) },
+       { USB_DEVICE(UBLOX_VENDOR_ID, 0x1343),          /* u-blox LARA-L6 (ECM) */
+         .driver_info = RSVD(4) },
        /* Quectel products using Quectel vendor ID */
        { USB_DEVICE_AND_INTERFACE_INFO(QUECTEL_VENDOR_ID, QUECTEL_PRODUCT_EC21, 0xff, 0xff, 0xff),
          .driver_info = NUMEP2 },