Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1759932Ab3GZWnM (ORCPT ); Fri, 26 Jul 2013 18:43:12 -0400 Received: from cassiel.sirena.org.uk ([80.68.93.111]:46509 "EHLO cassiel.sirena.org.uk" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1756108Ab3GZWnL (ORCPT ); Fri, 26 Jul 2013 18:43:11 -0400 Date: Fri, 26 Jul 2013 23:42:44 +0100 From: Mark Brown To: Tomasz Figa Cc: Vincent Palatin , Grant Likely , Liam Girdwood , linux-kernel@vger.kernel.org, Olof Johansson , devicetree@vger.kernel.org Message-ID: <20130726224244.GZ9858@sirena.org.uk> References: <1374781320-10793-1-git-send-email-vpalatin@chromium.org> <20130725200343.GV9858@sirena.org.uk> <2074197.ld4vucf8Ke@flatron> MIME-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="8cD+samFMzS4KXm7" Content-Disposition: inline In-Reply-To: <2074197.ld4vucf8Ke@flatron> X-Cookie: You will be awarded some great honor. User-Agent: Mutt/1.5.21 (2010-09-15) X-SA-Exim-Connect-IP: 94.175.92.69 X-SA-Exim-Mail-From: broonie@sirena.org.uk Subject: Re: [PATCH] regulator: read low power states configuration from device tree X-SA-Exim-Version: 4.2.1 (built Mon, 26 Dec 2011 16:57:07 +0000) X-SA-Exim-Scanned: Yes (on cassiel.sirena.org.uk) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 2237 Lines: 52 --8cD+samFMzS4KXm7 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Fri, Jul 26, 2013 at 10:54:10PM +0200, Tomasz Figa wrote: > > The reason this isn't in device tree at the minute is that suspend to > > disk and suspend to RAM are somewhat Linux specific concepts and the > > whole thing gets more and more dynamic as time moves forwards with the > > suspend state for practical systems depending on the instantaneous > > device state prior to entering suspend and the bits that are fixed often > > involving sequencing elements and so on which get fixed in hardware > > and/or bootloader. Do you have practical systems where this is needed? > We do have such boards at Samsung. Actually I made a similar patch for ou= r=20 > internal tree. Do you have more details on what exactly is happening with this stuff and why it isn't dynamic. Like I say suspend to disk seems relatively easy but suspend to RAM gets a bit tricky these days. --8cD+samFMzS4KXm7 Content-Type: application/pgp-signature; name="signature.asc" Content-Description: Digital signature -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.20 (GNU/Linux) iQIcBAEBAgAGBQJR8vthAAoJELSic+t+oim9id0QAJFrll9BBgzfSoputIYQb/3W rCTzGWSC0rwXfInrbIHqRvzUZz8sK3wTsnSF6KXMkAxGEWF7Lecv8XZvUkxhaPtb i1g5/9qVri7pZTuAeAq49+CjdSSPdSpOrfzdDmegIGzuqI2koE+DRcavD2/GI+sK cPMUqLneapkn9ydElFgE4sfsXj+2H9/NT/eb3tTBEEMWfILQt6A3HuGtkoMbLIRp vKbeogA/hS1Z1dn4rjYRfj//IJfkvdkXm4zSlrXfJm+CmpOlJ92y2FtYizk/2HMi sanE8jhhkRMUQes7tZyublUEpom6GX6WySbolETMkTj+xkElAVDgbMUfu5gO6G3C p0qtY2On1LnLHvvK7GOLyE47kNUbp/AFcMAzlpeZiCfdPgXuklztEtnBG0LmoOmU RMU+pls/EAFDHpn41aT4exOUbIavj3t7/5wZ9kLK8Coiq416Vljfa7jBDQ5D+qVE fJ+0TBrKjyvGYqHtY3UNnyxSIf2Ad0jayJzk2g/4ViMzxwNv7EljVTFLWtOl0MMH Ng1IkF+IZzrctZktFlgMPKn31WJUl3WKhKjTMk7aLuk1D5tBJP5LDusIDjMyllYb 74nIV3X0CW2hVS2hKfYYdVddDDVa7XKRT55b+IxK/hpra9EkMIGmD0KsHcOKpt7x zzoDuCZAjbzxwzEsKV6t =sGal -----END PGP SIGNATURE----- --8cD+samFMzS4KXm7-- -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/