USB: serial: option: Add support for Quectel EP06

The Quectel EP06 is a Cat. 6 LTE modem, and the interface mapping is as
follows:

0: Diag
1: NMEA
2: AT
3: Modem

Interface 4 is QMI and interface 5 is ADB, so they are blacklisted.

This patch should also be considered for -stable. The QMI-patch for this
modem is already in the -stable-queue.

v1->v2:
* Updated commit prefix (thanks Johan Hovold)
* Updated commit message slightly.

Signed-off-by: Kristian Evensen <kristian.evensen@gmail.com>
Acked-by: Johan Hovold <johan@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

1 files changed, 7 insertions, 0 deletions

diff --git a/drivers/usb/serial/option.c b/drivers/usb/serial/option.c
index 5db8ed517e0e..2d8d9150da0c 100644
--- a/drivers/usb/serial/option.c
+++ b/drivers/usb/serial/option.c
@@ -241,6 +241,7 @@ static void option_instat_callback(struct urb *urb);
 #define QUECTEL_PRODUCT_EC21                    0x0121
 #define QUECTEL_PRODUCT_EC25                    0x0125
 #define QUECTEL_PRODUCT_BG96                    0x0296
+#define QUECTEL_PRODUCT_EP06                    0x0306
 
 #define CMOTECH_VENDOR_ID                       0x16d8
 #define CMOTECH_PRODUCT_6001                    0x6001
@@ -689,6 +690,10 @@ static const struct option_blacklist_info yuga_clm920_nc5_blacklist = {
         .reserved = BIT(1) | BIT(4),
 };
 
+static const struct option_blacklist_info quectel_ep06_blacklist = {
+        .reserved = BIT(4) | BIT(5),
+};
+
 static const struct usb_device_id option_ids[] = {
         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_COLT) },
         { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_RICOLA) },
@@ -1203,6 +1208,8 @@ static const struct usb_device_id option_ids[] = {
           .driver_info = (kernel_ulong_t)&net_intf4_blacklist },
         { USB_DEVICE(QUECTEL_VENDOR_ID, QUECTEL_PRODUCT_BG96),
           .driver_info = (kernel_ulong_t)&net_intf4_blacklist },
+        { USB_DEVICE(QUECTEL_VENDOR_ID, QUECTEL_PRODUCT_EP06),
+          .driver_info = (kernel_ulong_t)&quectel_ep06_blacklist },
         { USB_DEVICE(CMOTECH_VENDOR_ID, CMOTECH_PRODUCT_6001) },
         { USB_DEVICE(CMOTECH_VENDOR_ID, CMOTECH_PRODUCT_CMU_300) },
         { USB_DEVICE(CMOTECH_VENDOR_ID, CMOTECH_PRODUCT_6003),