Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753729AbbESRu2 (ORCPT ); Tue, 19 May 2015 13:50:28 -0400 Received: from iolanthe.rowland.org ([192.131.102.54]:39464 "HELO iolanthe.rowland.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with SMTP id S1753402AbbESRu1 (ORCPT ); Tue, 19 May 2015 13:50:27 -0400 Date: Tue, 19 May 2015 13:50:26 -0400 (EDT) From: Alan Stern X-X-Sender: stern@iolanthe.rowland.org To: Tomeu Vizoso cc: linux-pm@vger.kernel.org, Laurent Pinchart , Dmitry Torokhov , "Rafael J. Wysocki" , Len Brown , Pavel Machek , Greg Kroah-Hartman , Subject: Re: [PATCH v3 1/2] PM / sleep: Add power.direct_complete_default flag In-Reply-To: <1432044679-10256-2-git-send-email-tomeu.vizoso@collabora.com> Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 912 Lines: 23 On Tue, 19 May 2015, Tomeu Vizoso wrote: > Introduce a new per-device flag power.direct_complete_default that will > instruct the PM core to let that device remain in runtime suspend when > the system goes into a sleep power state, without it having to implement > the prepare() callback. > > This is useful because otherwise it would be needed to get dozens of > drivers to implement the prepare() callback even if they don't have a > 1-to-1 relationship with a piece of HW. > > Signed-off-by: Tomeu Vizoso This seems to be a very reasonable approach, and much like what I envisioned from Rafael's original suggestion. Alan Stern -- 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/