From: Nick Hudson <skrll@netbsd.org>
Date: Fri, 6 Dec 2013 22:01:44 +0000 (-0800)
Subject: staging: dwc2: don't issue traffic to LS devices in FS mode
X-Git-Tag: v3.14-rc1~150^2~503
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=9f8144c6ed8f04984ee372a060ad75d228d2b9f0;p=pandora-kernel.git

staging: dwc2: don't issue traffic to LS devices in FS mode

I fell over the problem reported in
https://github.com/raspberrypi/linux/pull/390:

"Issuing low-speed packets when the root port is in full-speed mode
 causes the root port to stop responding. Explicitly fail when
 enqueuing URBs to a LS endpoint on a FS bus."

with my dwc2 testing in NetBSD, so I adapted the change to dwc2.

Signed-off-by: Nick Hudson <skrll@netbsd.org>
[paulz: fixed up the patch to compile under Linux, and tested it]
Signed-off-by: Paul Zimmerman <paulz@synopsys.com>
Tested-by: Stephen Warren <swarren@wwwdotorg.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---

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