From mboxrd@z Thu Jan 1 00:00:00 1970 From: Bill Davidsen Subject: Re: [PATCH][RFC] Kill off legacy power management stuff. Date: Wed, 18 Apr 2007 14:11:44 -0400 Message-ID: <46265F60.4040600@tmr.com> References: <200704131022.45315.rjw@sisk.pl> <46254666.2020308@tmr.com> Mime-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Return-path: In-Reply-To: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: linux-pm-bounces@lists.linux-foundation.org Errors-To: linux-pm-bounces@lists.linux-foundation.org To: "Robert P. J. Day" Cc: pm list , Linux Kernel Mailing List , Pavel Machek List-Id: linux-pm@vger.kernel.org Robert P. J. Day wrote: > On Tue, 17 Apr 2007, Bill Davidsen wrote: > > = >> Rafael J. Wysocki wrote: >> = >>> [appropriate CCs added] >>> >>> On Friday, 13 April 2007 02:33, Robert P. J. Day wrote: >>> = >>>> just something i threw together, not in final form, but it represents >>>> tossing the legacy PM stuff. at the moment, the menuconfig entry for >>>> PM_LEGACY lists it as "DEPRECATED", while the help screen calls it >>>> "obsolete." that's a good sign that it's getting close to the time >>>> for it to go, and the removal is fairly straightforward, but there's >>>> no mention of its removal in the feature removal schedule file. >>>> = >>> It's been like this for a long long time. I think you're right that it= can >>> be >>> dropped, but I don't know the details (eg. why it hasn't been dropped y= et). >>> >>> = >> One reason was that there are (were?) a number of machines which only po= wered >> down properly using apm. It was discussed as part of shutting down after= power >> failure when your UPS is running out of power. >> = > > um ... what does APM have to do with legacy PM? two different issues, > no? > = Since the patches are going into apm.c and apm was used for suspend and = poweroff before ACPI was a feature of the hardware, I assume there's a = relationship. As of 2.6.9 ACPI still couldn't power down one of my old = boxes, it hasn't been updated since that time, so I can't say what later = kernels will do. -- = bill davidsen CTO TMR Associates, Inc Doing interesting things with small computers since 1979