[added to the 3.18 stable tree] USB: serial: option: add support for Telit LE920A4

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From: Daniele Palmas <dnlplm@xxxxxxxxx>

This patch has been added to the 3.18 stable tree. If you have any
objections, please let us know.

===============

[ Upstream commit 01d7956b58e644ea0d2e8d9340c5727a8fc39d70 ]

This patch adds a set of compositions for Telit LE920A4.

Compositions in short are:

0x1207: tty + tty
0x1208: tty + adb + tty + tty
0x1211: tty + adb + ecm
0x1212: tty + adb
0x1213: ecm + tty
0x1214: tty + adb + ecm + tty

telit_le922_blacklist_usbcfg3 is reused for compositions 0x1211
and 0x1214 due to the same interfaces positions.

Signed-off-by: Daniele Palmas <dnlplm@xxxxxxxxx>
Cc: stable <stable@xxxxxxxxxxxxxxx>
Signed-off-by: Johan Hovold <johan@xxxxxxxxxx>
Signed-off-by: Sasha Levin <alexander.levin@xxxxxxxxxxx>
---
 drivers/usb/serial/option.c | 21 +++++++++++++++++++++
 1 file changed, 21 insertions(+)

diff --git a/drivers/usb/serial/option.c b/drivers/usb/serial/option.c
index 1adff95..023ed53 100644
--- a/drivers/usb/serial/option.c
+++ b/drivers/usb/serial/option.c
@@ -276,6 +276,12 @@ static void option_instat_callback(struct urb *urb);
 #define TELIT_PRODUCT_LE920			0x1200
 #define TELIT_PRODUCT_LE910			0x1201
 #define TELIT_PRODUCT_LE910_USBCFG4		0x1206
+#define TELIT_PRODUCT_LE920A4_1207		0x1207
+#define TELIT_PRODUCT_LE920A4_1208		0x1208
+#define TELIT_PRODUCT_LE920A4_1211		0x1211
+#define TELIT_PRODUCT_LE920A4_1212		0x1212
+#define TELIT_PRODUCT_LE920A4_1213		0x1213
+#define TELIT_PRODUCT_LE920A4_1214		0x1214
 
 /* ZTE PRODUCTS */
 #define ZTE_VENDOR_ID				0x19d2
@@ -637,6 +643,11 @@ static const struct option_blacklist_info sierra_mc73xx_blacklist = {
 	.reserved = BIT(8) | BIT(10) | BIT(11),
 };
 
+static const struct option_blacklist_info telit_le920a4_blacklist_1 = {
+	.sendsetup = BIT(0),
+	.reserved = BIT(1),
+};
+
 static const struct option_blacklist_info telit_le922_blacklist_usbcfg0 = {
 	.sendsetup = BIT(2),
 	.reserved = BIT(0) | BIT(1) | BIT(3),
@@ -1215,6 +1226,16 @@ static const struct usb_device_id option_ids[] = {
 		.driver_info = (kernel_ulong_t)&telit_le922_blacklist_usbcfg3 },
 	{ USB_DEVICE(TELIT_VENDOR_ID, TELIT_PRODUCT_LE920),
 		.driver_info = (kernel_ulong_t)&telit_le920_blacklist },
+	{ USB_DEVICE(TELIT_VENDOR_ID, TELIT_PRODUCT_LE920A4_1207) },
+	{ USB_DEVICE(TELIT_VENDOR_ID, TELIT_PRODUCT_LE920A4_1208),
+		.driver_info = (kernel_ulong_t)&telit_le920a4_blacklist_1 },
+	{ USB_DEVICE(TELIT_VENDOR_ID, TELIT_PRODUCT_LE920A4_1211),
+		.driver_info = (kernel_ulong_t)&telit_le922_blacklist_usbcfg3 },
+	{ USB_DEVICE(TELIT_VENDOR_ID, TELIT_PRODUCT_LE920A4_1212),
+		.driver_info = (kernel_ulong_t)&telit_le920a4_blacklist_1 },
+	{ USB_DEVICE_INTERFACE_CLASS(TELIT_VENDOR_ID, TELIT_PRODUCT_LE920A4_1213, 0xff) },
+	{ USB_DEVICE(TELIT_VENDOR_ID, TELIT_PRODUCT_LE920A4_1214),
+		.driver_info = (kernel_ulong_t)&telit_le922_blacklist_usbcfg3 },
 	{ USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, ZTE_PRODUCT_MF622, 0xff, 0xff, 0xff) }, /* ZTE WCDMA products */
 	{ USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x0002, 0xff, 0xff, 0xff),
 		.driver_info = (kernel_ulong_t)&net_intf1_blacklist },
-- 
2.7.4
--
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