From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755310AbaLVPil (ORCPT ); Mon, 22 Dec 2014 10:38:41 -0500 Received: from devils.ext.ti.com ([198.47.26.153]:46060 "EHLO devils.ext.ti.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755150AbaLVPii (ORCPT ); Mon, 22 Dec 2014 10:38:38 -0500 Date: Mon, 22 Dec 2014 09:37:30 -0600 From: Felipe Balbi To: Sneeker Yeh CC: Rob Herring , Pawel Moll , Mark Rutland , Ian Campbell , Kumar Gala , Felipe Balbi , Greg Kroah-Hartman , Mathias Nyman , Grant Likely , Alan Stern , Arnd Bergmann , Paul Bolle , Hans de Goede , Thomas Pugliese , David Mosberger , Peter Griffin , Sylwester Nawrocki , Andrew Bresticker , Gregory CLEMENT , Yoshihiro Shimoda , , , , , Andy Green , Jassi Brar , Sneeker Yeh Subject: Re: [PATCH 3/3] usb: dwc3: add a quirk for device disconnection issue in Synopsis dwc3 core Message-ID: <20141222153730.GA12815@saruman> Reply-To: References: <1418695828-605-1-git-send-email-Sneeker.Yeh@tw.fujitsu.com> <1418695828-605-4-git-send-email-Sneeker.Yeh@tw.fujitsu.com> MIME-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="FCuugMFkClbJLl1L" Content-Disposition: inline In-Reply-To: <1418695828-605-4-git-send-email-Sneeker.Yeh@tw.fujitsu.com> User-Agent: Mutt/1.5.23 (2014-03-12) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org --FCuugMFkClbJLl1L Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Tue, Dec 16, 2014 at 10:10:28AM +0800, Sneeker Yeh wrote: > Synopsis DesignWare USB3 IP Core integrated with a config-free > phy needs special handling during device disconnection to avoid > the host controller dying. >=20 > This quirk makes sure PORT_CSC is cleared after the disable slot > command when usb device is disconnected from internal root hub, > otherwise, Synopsis core would fall into a state that cannot use > any endpoint command. Consequently, device disconnection procedure > might not be finished because sometimes endpoint need to be stop > by endpoint stop command issuing. >=20 > Symptom usually happens when disconnected device is keyboard, > mouse, and hub. you need to point us to the synopsys STARS ticket number. That's the only way to reference this specific quirk. Add it to a comment somewhere. --=20 balbi --FCuugMFkClbJLl1L Content-Type: application/pgp-signature; name="signature.asc" Content-Description: Digital signature -----BEGIN PGP SIGNATURE----- Version: GnuPG v1 iQIcBAEBAgAGBQJUmDq6AAoJEIaOsuA1yqREBvsQAJ5hAbSbFOq1rpAfsrVX6QIG V+//vvw4jxayZT/pJhEhzihGa4EPA+A7mIncZ9wZ4hqclYqUnQmZvlnYHM2o2JPu Yhwr/xs5YplmYK6prNU9ROUgfK7YrjoY2jj+DfHrwdg6i/bPaaH9YwvFFFklAYzL FqPme1iqPU0Pg8hosOpclA1ikavMXEot31RqEPipBQUwFzwjVu0Eun5rWiTHEvhI jqhMWv+jazCIJpBAlgVVrGc+r7nfQ4mkjhBaQcUwQ9HczYlv1Rg8tMMCzH1xB/+v MdTqLIRXh9xej4unzTYmE5twX9Qo7rjadVaOnB1gEN7YQh5mGOq7n4YqS5t71Gzr 4D9E4uSlL8zqpYnYdZrXQiiAbOb3O8yDXa1LKc3ZAZ/QhhHfo8YfspO6I3QIjmtg 8Jsk/X05dkmlgCSXEnXtQCqBc4KpddHjH+1gziHOKio8Tte3eX2MFOZGk9q12heC 2dpUHeKokJWaEK66O6clzBIyDWWXyNQIDtEjaXZts+lUN/hzjz5GSWGv6c2Vpd71 VMIzr/chN6AJWAFoXNc827SVdEqQBcu4ziRR6mNJ/R99fdv52j3wtYJaf7z8vsiu kZ8FuBW8coQZg7IapDFkbGWATLBRKxaeZl+NISFdUNl2UgPQqCe4IZlYvHqiVVZi sGWJjgABKtq5Bp13ct48 =Au6Y -----END PGP SIGNATURE----- --FCuugMFkClbJLl1L--