From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756150Ab2BIH7U (ORCPT ); Thu, 9 Feb 2012 02:59:20 -0500 Received: from na3sys009aog107.obsmtp.com ([74.125.149.197]:49833 "EHLO na3sys009aog107.obsmtp.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751744Ab2BIH7S (ORCPT ); Thu, 9 Feb 2012 02:59:18 -0500 Date: Thu, 9 Feb 2012 09:59:14 +0200 From: Felipe Balbi To: Tomoya MORINAGA Cc: Felipe Balbi , Greg Kroah-Hartman , linux-usb@vger.kernel.org, linux-kernel@vger.kernel.org, qi.wang@intel.com, yong.y.wang@intel.com, joel.clark@intel.com, kok.howg.ewe@intel.com Subject: Re: [PATCH 1/3 v2] pch_udc: Detecting VBUS through GPIO Message-ID: <20120209075913.GL1121@legolas.emea.dhcp.ti.com> Reply-To: balbi@ti.com References: <1328254526-9447-1-git-send-email-tomoya.rohm@gmail.com> MIME-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="vTfKKTivj/mQoluA" Content-Disposition: inline In-Reply-To: <1328254526-9447-1-git-send-email-tomoya.rohm@gmail.com> User-Agent: Mutt/1.5.21 (2010-09-15) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org --vTfKKTivj/mQoluA Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Fri, Feb 03, 2012 at 04:35:26PM +0900, Tomoya MORINAGA wrote: > Problem: > In USB Suspend, pch_udc handles 'disconnect'. >=20 > Root cause: > The current pch_udc is not monitoring VBUS. > When USB cable is disconnected, USB Device Controller generates > an interrupt of USB Suspend. > pch_udc cannot distinguish it is USB Suspend or disconnect. > Therefore, pch_udc handles 'disconnect' after an interrupt of > USB Suspend happend. >=20 > Solution: > VBUS is detected through GPIO. > After an interrupt produced USB Suspend, if VBUS is Low, > pch_udc handles 'disconnect'. > If VBUS is High, pch_udc handles 'suspend'. >=20 > Signed-off-by: Tomoya MORINAGA applied, thanks --=20 balbi --vTfKKTivj/mQoluA Content-Type: application/pgp-signature; name="signature.asc" Content-Description: Digital signature -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.11 (GNU/Linux) iQIcBAEBAgAGBQJPM3zRAAoJEIaOsuA1yqREbCoP/3/h785TuQLE3aomOzi5NB+d eUNrnANo7XomxIfesWfJK3y5Mc9gG1jd80IiazIjehkqVRQDJ1NIrqewCXVM1hm6 CbtDKWnBPVN5vQC6NuYdfkCC83lF78Ij6KNZ4zE8mdP18YjEsnwvXQ4laBqbUSth mg2DL77rMVTB6HX8T+v+P5od09VkA8duMvNz9zePLZOi7Q5TyQDaDnKiwPaqafus UJxcKRTi29YelCK2HAa37SzbIGI03u28tmov1PTd79Q8AoVwbqfu1y65F6eaneJx Pogn3fqRpnugT04Gjoxvjy+FnbnydnWB2kfAnVl1pYOFjjVSLc/KuxZ/u42Rd+N0 ZCvXJp79C6pVKrDKuVzFfFjpxR8goBsqe3dZWjiQ2rhptzcIdbcz8j8MsSVxTsul 4SGq70XlIL1qKW2K4WGYU5KKdtZBIK9EESYuDwaRI5sGacXYQtMldGynIyxQxObB 3R/cqk8TUksy7tuJUnfs8K+ULIokKwH1ur26AcK6qfDcAoZUn61M05/sN8QL0v15 nFc80HEAuL9AAYXa+mJX4KDVFASorplFCQpDdzut1aEOBW0Vqe7R8FMiVGp2DZdk bH5KS26MNomA9kEnhVE9sZiN1Y0w/BZuy2WJGooaZtZvGpZJB62sgcbL+IiPF6LB Agh5w6eOdei4dZ0qOwqs =2sns -----END PGP SIGNATURE----- --vTfKKTivj/mQoluA--