linux-kernel - [PATCH 3.18 06/25] USB: serial: ftdi_sio: use jtag quirk for Arrow USB Blaster

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Message-Id: <20180430183911.080067795@linuxfoundation.org>
Date:   Mon, 30 Apr 2018 12:23:13 -0700
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org, Vasyl Vavrychuk <vvavrychuk@...il.com>,
        Johan Hovold <johan@...nel.org>
Subject: [PATCH 3.18 06/25] USB: serial: ftdi_sio: use jtag quirk for Arrow USB Blaster

3.18-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Vasyl Vavrychuk <vvavrychuk@...il.com>

commit 470b5d6f0cf4674be2d1ec94e54283a1770b6a1a upstream.

Arrow USB Blaster integrated on MAX1000 board uses the same vendor ID
(0x0403) and product ID (0x6010) as the "original" FTDI device.

This patch avoids picking up by ftdi_sio of the first interface of this
USB device. After that this device can be used by Arrow user-space JTAG
driver.

Signed-off-by: Vasyl Vavrychuk <vvavrychuk@...il.com>
Cc: stable <stable@...r.kernel.org>
Signed-off-by: Johan Hovold <johan@...nel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>

---
 drivers/usb/serial/ftdi_sio.c |    3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

--- a/drivers/usb/serial/ftdi_sio.c
+++ b/drivers/usb/serial/ftdi_sio.c
@@ -1908,7 +1908,8 @@ static int ftdi_8u2232c_probe(struct usb
 		return ftdi_jtag_probe(serial);
 
 	if (udev->product &&
-		(!strcmp(udev->product, "BeagleBone/XDS100V2") ||
+		(!strcmp(udev->product, "Arrow USB Blaster") ||
+		 !strcmp(udev->product, "BeagleBone/XDS100V2") ||
 		 !strcmp(udev->product, "SNAP Connect E10")))
 		return ftdi_jtag_probe(serial);