From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754115AbcIILIQ (ORCPT ); Fri, 9 Sep 2016 07:08:16 -0400 Received: from mezzanine.sirena.org.uk ([106.187.55.193]:54928 "EHLO mezzanine.sirena.org.uk" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752956AbcIILIN (ORCPT ); Fri, 9 Sep 2016 07:08:13 -0400 Date: Fri, 9 Sep 2016 12:07:27 +0100 From: Mark Brown To: NeilBrown Cc: Baolin Wang , NeilBrown , Felipe Balbi , Greg KH , Sebastian Reichel , Dmitry Eremin-Solenikov , David Woodhouse , robh@kernel.org, Jun Li , Marek Szyprowski , Ruslan Bilovol , Peter Chen , Alan Stern , r.baldyga@samsung.com, grygorii.strashko@ti.com, Yoshihiro Shimoda , Lee Jones , Charles Keepax , patches@opensource.wolfsonmicro.com, Linux PM list , USB , device-mainlining@lists.linuxfoundation.org, LKML , "Bird, Timothy" Message-ID: <20160909110727.GI27946@sirena.org.uk> References: <8760q9a8m6.fsf@notabene.neil.brown.name> <878tv297a0.fsf@notabene.neil.brown.name> <87y4326l44.fsf@notabene.neil.brown.name> MIME-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha256; protocol="application/pgp-signature"; boundary="2xeD/fx0+7k8I/QN" Content-Disposition: inline In-Reply-To: <87y4326l44.fsf@notabene.neil.brown.name> X-Cookie: Question authority. User-Agent: Mutt/1.6.0 (2016-04-01) X-SA-Exim-Connect-IP: 2a01:348:6:8808:fab::3 X-SA-Exim-Mail-From: broonie@sirena.org.uk Subject: Re: [PATCH v16 0/4] Introduce usb charger framework to deal with the usb gadget power negotation X-SA-Exim-Version: 4.2.1 (built Mon, 26 Dec 2011 16:24:06 +0000) X-SA-Exim-Scanned: No (on mezzanine.sirena.org.uk); Unknown failure Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org --2xeD/fx0+7k8I/QN Content-Type: text/plain; charset=us-ascii Content-Disposition: inline On Fri, Sep 09, 2016 at 09:13:31AM +1000, NeilBrown wrote: > Conceptually, the PHY is separate from the power manager and a solution > which recognises that will be more universal. The wm831x driver in the patch series is an example of such hardware - it is purely a power manager, it has no USB PHY hardware at all. It's a current limiter intended to sit in line with the USB power lines to ensure the system doesn't go over the maximum current draw (and also integrates with the power source selection logic the chip has to pick the best available power source for the system). --2xeD/fx0+7k8I/QN Content-Type: application/pgp-signature; name="signature.asc" -----BEGIN PGP SIGNATURE----- Version: GnuPG v2 iQEcBAEBCAAGBQJX0pfuAAoJECTWi3JdVIfQ8IsH/2/t2QGomRX5QpPE5gTAbC8i ZBlxh2v1IUt39/eBn4GHKelDnnhqXfg5CBtXJh2TduEDbZ1682cxKrp45oWWKTzw cDwDkEpWraar2MqG6z8kt7brBdh41hmnpTqkHcOKpCcyK0lbIF5BbQVByx0wMwz+ BYD5xdw9mXkYTKkuUcFyH9vBkzSMHMR66XJWDLOqy9jsG0pvScYMFmwVpkyaz/tf 7zxFiIoBVTS1hhP9mY/xU1Ik7h1VuN55NwkhWQCFWmc5LgZf/rpi5hL3UhOHWCxD ZU16CLN8+jeIjRGhsqEXmBC4RX1iFCY6g563a5P/SJck6ZzzJ0TI32Is+u44gWU= =twcU -----END PGP SIGNATURE----- --2xeD/fx0+7k8I/QN--