From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752776AbbJTPhe (ORCPT ); Tue, 20 Oct 2015 11:37:34 -0400 Received: from mezzanine.sirena.org.uk ([106.187.55.193]:39229 "EHLO mezzanine.sirena.org.uk" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752351AbbJTPh3 (ORCPT ); Tue, 20 Oct 2015 11:37:29 -0400 Date: Tue, 20 Oct 2015 16:36:12 +0100 From: Mark Brown To: Alan Stern Cc: Rob Herring , "Rafael J. Wysocki" , David Woodhouse , Greg Kroah-Hartman , Tomeu Vizoso , Russell King , Michael Turquette , Stephen Boyd , Vinod Koul , Dan Williams , Linus Walleij , Alexandre Courbot , Thierry Reding , David Airlie , Terje =?iso-8859-1?Q?Bergstr=F6m?= , Stephen Warren , Wolfram Sang , Frank Rowand , Grant Likely , Kishon Vijay Abraham I , Sebastian Reichel , Dmitry Eremin-Solenikov , Liam Girdwood , Felipe Balbi , Jingoo Han , Lee Jones , Jean-Christophe Plagniol-Villard , Tomi Valkeinen , "linux-kernel@vger.kernel.org" , linux-clk@vger.kernel.org, dmaengine@vger.kernel.org, "linux-gpio@vger.kernel.org" , dri-devel , "linux-tegra@vger.kernel.org" , "linux-i2c@vger.kernel.org" , "devicetree@vger.kernel.org" , "linux-pm@vger.kernel.org" , Linux PWM List , Linux USB List , "linux-fbdev@vger.kernel.org" Message-ID: <20151020153612.GB32054@sirena.org.uk> References: MIME-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha256; protocol="application/pgp-signature"; boundary="yda//aIZIMrd7mir" Content-Disposition: inline In-Reply-To: X-Cookie: HUGH BEAUMONT died in 1982!! User-Agent: Mutt/1.5.24 (2015-08-30) X-SA-Exim-Connect-IP: 94.175.94.161 X-SA-Exim-Mail-From: broonie@sirena.org.uk Subject: Re: [GIT PULL] On-demand device probing X-SA-Exim-Version: 4.2.1 (built Mon, 26 Dec 2011 16:24:06 +0000) X-SA-Exim-Scanned: Yes (on mezzanine.sirena.org.uk) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org --yda//aIZIMrd7mir Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Tue, Oct 20, 2015 at 10:40:03AM -0400, Alan Stern wrote: > Furthermore, that applies only to devices that use synchronous suspend. = =20 > Async suspend is becoming common, and there the only restrictions are=20 > parent-child relations plus whatever explicit requirements that drivers= =20 > impose by calling device_pm_wait_for_dev(). Hrm, this is the first I'd noticed that feature though I see the initial commit dates from January. It looks like most of the users are PCs at the minute but we should be using it more widely for embedded things, there's definitely some cases I'm aware of where it will allow us to remove some open coding. It does seem like we want to be feeding dependency information we discover for probing way into the suspend dependencies... --yda//aIZIMrd7mir Content-Type: application/pgp-signature; name="signature.asc" -----BEGIN PGP SIGNATURE----- Version: GnuPG v2 iQEcBAEBCAAGBQJWJl9rAAoJECTWi3JdVIfQnkIH/2GzqyZNrVrsXXUVXs+4Shdt ktptYpVn9emNkSaj6aqYpyoVmHnvFpXnM5NLdQOURsDRCpkq5+b/yesGl7rqAqH/ THvORSPwBV0dFdb9TpLYI6dfuOxDl8ufyiMUjxM5l17G636RfipKStJBK5UGHKBK 8uGvTrUdX+9TpG5tNeC7BOjp/bGjrtKHaiyHbcBjrtUwO4kixDnVvD1qomuwIiIt RAHlPGdo4sO6IW0I5HurTI44EWxDxASqNYD4crMFdWgbo5J86QRgzkWJ7yh2d2wm P7eRo9qYZkqhKhMc2pKJdiZ7dTnM77cqd17uzOiNDfCRWsvCUP7+2QE2rcyDeZk= =XKiJ -----END PGP SIGNATURE----- --yda//aIZIMrd7mir--