From mboxrd@z Thu Jan  1 00:00:00 1970
Content-Type: text/plain; charset="utf-8"
MIME-Version: 1.0
Content-Transfer-Encoding: base64
Subject: usb: hub: try old enumeration scheme first for high speed devices
From: "Zengtao \(B\)" <prime.zeng@hisilicon.com>
Message-Id: <1538134077-14542-1-git-send-email-prime.zeng@hisilicon.com>
Date: Fri, 28 Sep 2018 19:27:52 +0800
To: gregkh@linuxfoundation.org, stern@rowland.harvard.edu, mathias.nyman@linux.intel.com, drinkcat@chromium.org, felipe.balbi@linux.intel.com, drake@endlessm.com, ravisadineni@chromium.org, joe@perches.com
Cc: prime.zeng@hisilicon.com, Jonathan Corbet <corbet@lwn.net>, Thomas Gleixner <tglx@linutronix.de>, Ingo Molnar <mingo@kernel.org>, Bjorn Helgaas <bhelgaas@google.com>, Kai-Heng Feng <kai.heng.feng@canonical.com>, Thymo van Beers <thymovanbeers@gmail.com>, Jiri Kosina <jkosina@suse.cz>, Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>, Frederic Weisbecker <frederic@kernel.org>, David Rientjes <rientjes@google.com>, linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org, linux-usb@vger.kernel.org
List-ID: <linux-usb.vger.kernel.org>
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=