From mboxrd@z Thu Jan 1 00:00:00 1970 From: Tejun Heo Subject: Re: [PATCH 0/2] Power off empty ports Date: Fri, 4 Mar 2011 10:06:44 +0100 Message-ID: <20110304090644.GC20499@htj.dyndns.org> References: <1299176478-2999-1-git-send-email-kristen@linux.intel.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Return-path: Received: from mail-bw0-f46.google.com ([209.85.214.46]:33507 "EHLO mail-bw0-f46.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1759286Ab1CDJGt (ORCPT ); Fri, 4 Mar 2011 04:06:49 -0500 Received: by bwz15 with SMTP id 15so1890181bwz.19 for ; Fri, 04 Mar 2011 01:06:47 -0800 (PST) Content-Disposition: inline In-Reply-To: <1299176478-2999-1-git-send-email-kristen@linux.intel.com> Sender: linux-ide-owner@vger.kernel.org List-Id: linux-ide@vger.kernel.org To: Kristen Carlson Accardi Cc: linux-ide@vger.kernel.org On Thu, Mar 03, 2011 at 10:21:16AM -0800, Kristen Carlson Accardi wrote: > Give users the option of completely powering off unoccupied > SATA ports by introducing a new link_power_mananagement policy > option "power_off". When the user selects this option on an > empty port, we will power off the port by setting DET to off. Why introduce another LPM state? Just do power off if min_power && port empty. Thanks. -- tejun