From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752832AbZBRIwS (ORCPT ); Wed, 18 Feb 2009 03:52:18 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1751256AbZBRIwH (ORCPT ); Wed, 18 Feb 2009 03:52:07 -0500 Received: from smtp-out002.kontent.com ([81.88.40.216]:33455 "EHLO smtp-out002.kontent.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751066AbZBRIwG convert rfc822-to-8bit (ORCPT ); Wed, 18 Feb 2009 03:52:06 -0500 From: Oliver Neukum Organization: Novell To: "Rafael J. Wysocki" Subject: Re: [RFD] Automatic suspend Date: Wed, 18 Feb 2009 09:53:48 +0100 User-Agent: KMail/1.9.10 Cc: Alan Stern , Arjan van de Ven , pm list , LKML , Arve =?iso-8859-1?q?Hj=F8nnev=E5g?= , Benjamin Herrenschmidt , Pavel Machek , Nigel Cunningham , Matthew Garrett , mark gross , "Woodruff, Richard" , Uli Luckas , Igor Stoppa , Brian Swetland , Len Brown References: <200902180026.55533.rjw@sisk.pl> In-Reply-To: <200902180026.55533.rjw@sisk.pl> MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 8BIT Content-Disposition: inline Message-Id: <200902180953.51171.oliver@neukum.org> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Am Wednesday 18 February 2009 00:26:53 schrieb Rafael J. Wysocki: > > Another possibility is to set up independent runtime PM for the > > transport and the device.  This means allowing the possibility that the > > transport is suspended while its child (the device) is not.  This is a > > little simpler (there's only one idle-timeout per device, since the > > link is treated as an independent device), but it violates the > > principle of never suspending a parent while there is an active child. > > Well, I think the first approach would be better. I am afraid it wouldn't be. How do you deal with shared transports? Regards Oliver