From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1757418AbXFMJFH (ORCPT ); Wed, 13 Jun 2007 05:05:07 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1755572AbXFMJEz (ORCPT ); Wed, 13 Jun 2007 05:04:55 -0400 Received: from gprs189-60.eurotel.cz ([160.218.189.60]:56148 "EHLO amd.ucw.cz" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1752012AbXFMJEx (ORCPT ); Wed, 13 Jun 2007 05:04:53 -0400 Date: Wed, 13 Jun 2007 11:04:30 +0200 From: Pavel Machek To: Tejun Heo Cc: Arjan van de Ven , Kristen Carlson Accardi , jeff@garzik.org, james.bottomley@steeleye.com, linux-ide@vger.kernel.org, linux-scsi@vger.kernel.org, linux-kernel@vger.kernel.org, Jens Axboe Subject: Re: [patch 0/3] AHCI Link Power Management Message-ID: <20070613090430.GK13747@elf.ucw.cz> References: <20070611114600.7fca1c24.kristen.c.accardi@intel.com> <466DFDB5.9030901@gmail.com> <466E0642.5020506@linux.intel.com> <466E1D51.9070007@gmail.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <466E1D51.9070007@gmail.com> X-Warning: Reading this can be dangerous to your mental health. User-Agent: Mutt/1.5.11+cvs20060126 Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Hi! > >> I'm not sure about this. We need better PM framework to support > >> powersaving in other controllers and some ahcis don't save much > >> when only link power management is used, > > > > do you have data to support this? > > Yeah, it was some Lenovo notebook. Pavel is more familiar with the > hardware. Pavel, what was the notebook which didn't save much power > with standard SATA power save but needed port to be completely turned off? Thinkpad x60. Some one Kristen probably used while developing the patch :-). Pavel -- (english) http://www.livejournal.com/~pavelmachek (cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html