[PATCH v6 2/3] USB: serial: option: add u-blox LARA-R6 00B modem

[Davide Tronchin <davide.tronchin.94@gmail.com>]

The official LARA-R6 (00B) modem uses 0x908b PID. LARA-R6 00B does not
implement a QMI interface on port 4, the reservation (RSVD(4)) has been
added to meet other companies that implement QMI on that interface.

LARA-R6 00B USB composition exposes the following interfaces:
If 0: Diagnostic
If 1: AT parser
If 2: AT parser
If 3: AT parser/alternative functions

Signed-off-by: Davide Tronchin <davide.tronchin.94@gmail.com>
---

V5 -> V6: text wrapped correctly.

V4 -> V5: kept PID 0x90fa to maintain the support for other products
which use VID:PID 0x05c6:0x90fa. Remove interface 4 from blacklist
for LARA-L6 default mode since it is not needed.

V3 -> V4: as requested, the patch has been split to 3 sub-patches.
Fix comment format.

V2 -> V3: added this section to tracking changes with previous versions.
Added some explanations about the RSVD(4) in the description session.
Added reservation to port 4 of VID:PID 0x05C6:0x908B to meet other
companies QMI net interface implementation.

V1 -> V2: define UBLOX_PRODUCT_LARA_R6 0x908b has been deleted together
with the previosly provided definition of USB_DEVICE since the PID
is used by another vendor.
The LARA-L6 patch part is the same of the previosly provided one.

 drivers/usb/serial/option.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/usb/serial/option.c b/drivers/usb/serial/option.c
index b93285b5175b..011b9a3b7571 100644
--- a/drivers/usb/serial/option.c
+++ b/drivers/usb/serial/option.c
@@ -1125,6 +1125,8 @@ static const struct usb_device_id option_ids[] = {
 	  .driver_info = RSVD(1) | RSVD(3) },
 	{ USB_DEVICE(QUALCOMM_VENDOR_ID, 0x90fa),
 	  .driver_info = RSVD(3) },
+	{ USB_DEVICE(QUALCOMM_VENDOR_ID, 0x908b), /* u-blox LARA-R6 00B */
+	  .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 },
-- 
2.34.1