linux-kernel - [PATCH AUTOSEL 5.10 18/18] net: usb: cdc_mbim: avoid altsetting toggling for Telit FN990

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Message-Id: <20220223023035.241551-18-sashal@kernel.org>
Date:   Tue, 22 Feb 2022 21:30:35 -0500
From:   Sasha Levin <sashal@...nel.org>
To:     linux-kernel@...r.kernel.org, stable@...r.kernel.org
Cc:     Daniele Palmas <dnlplm@...il.com>,
        "David S . Miller" <davem@...emloft.net>,
        Sasha Levin <sashal@...nel.org>, oliver@...kum.org,
        kuba@...nel.org, linux-usb@...r.kernel.org, netdev@...r.kernel.org
Subject: [PATCH AUTOSEL 5.10 18/18] net: usb: cdc_mbim: avoid altsetting toggling for Telit FN990

From: Daniele Palmas <dnlplm@...il.com>

[ Upstream commit 21e8a96377e6b6debae42164605bf9dcbe5720c5 ]

Add quirk CDC_MBIM_FLAG_AVOID_ALTSETTING_TOGGLE for Telit FN990
0x1071 composition in order to avoid bind error.

Signed-off-by: Daniele Palmas <dnlplm@...il.com>
Signed-off-by: David S. Miller <davem@...emloft.net>
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
 drivers/net/usb/cdc_mbim.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/drivers/net/usb/cdc_mbim.c b/drivers/net/usb/cdc_mbim.c
index 77ac5a721e7b6..414341c9cf5ae 100644
--- a/drivers/net/usb/cdc_mbim.c
+++ b/drivers/net/usb/cdc_mbim.c
@@ -658,6 +658,11 @@ static const struct usb_device_id mbim_devs[] = {
 	  .driver_info = (unsigned long)&cdc_mbim_info_avoid_altsetting_toggle,
 	},
 
+	/* Telit FN990 */
+	{ USB_DEVICE_AND_INTERFACE_INFO(0x1bc7, 0x1071, USB_CLASS_COMM, USB_CDC_SUBCLASS_MBIM, USB_CDC_PROTO_NONE),
+	  .driver_info = (unsigned long)&cdc_mbim_info_avoid_altsetting_toggle,
+	},
+
 	/* default entry */
 	{ USB_INTERFACE_INFO(USB_CLASS_COMM, USB_CDC_SUBCLASS_MBIM, USB_CDC_PROTO_NONE),
 	  .driver_info = (unsigned long)&cdc_mbim_info_zlp,
-- 
2.34.1