From mboxrd@z Thu Jan 1 00:00:00 1970 From: Bjorn Helgaas Subject: Re: [PATCH/RFC 2/2]ACPI PNP driver Date: Wed, 22 Sep 2004 14:58:18 -0600 Sender: acpi-devel-admin-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org Message-ID: <200409221458.18377.bjorn.helgaas@hp.com> References: <1095827699.18437.139.camel@sli10-desk.sh.intel.com> <200409221252.08427.bjorn.helgaas@hp.com> <1095881343.4514.40.camel@localhost.localdomain> Mime-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <1095881343.4514.40.camel-bi+AKbBUZKY6gyzm1THtWbp2dZbC/Bob@public.gmane.org> Content-Disposition: inline Errors-To: acpi-devel-admin-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , List-Archive: To: Alan Cox Cc: acpi-devel-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org, Li Shaohua , Len Brown , Adam Belay , Andrew Grover , Matthieu List-Id: linux-acpi@vger.kernel.org On Wednesday 22 September 2004 1:29 pm, Alan Cox wrote: > On Mer, 2004-09-22 at 19:52, Bjorn Helgaas wrote: > > PNP currently depends on ISA. ia64 doesn't set ISA. So if you > > pull ACPI support out of serial/floppy/etc, those devices will > > stop working on ia64. Are you planning to remove the ISA > > dependency? > > Please be more precise. There are four kinds of "PnP" at least. > IEEE1394 (parallel PnP) and serial PnP are independant of ACPI. > BIOS PnP serves the same purpose and is replaced by the ACPI ability to > enumerate system devices. ISA PnP enumerates devices on legacy ISA > busses. CONFIG_PNP currently depends on CONFIG_ISA. The patch posted adds CONFIG_PNPACPI, which depends on CONFIG_PNP (and hence on CONFIG_ISA). 8250_pnp.o is only built if CONFIG_PNP. ia64 has no support for CONFIG_ISA, so as things stand today, ia64 can't build 8250_pnp.o. If I understand Li correctly, he's suggesting that 8250_acpi.o (which ia64 currently uses) may eventually be removed because 8250_pnp.o will be sufficient. Perhaps there's a way to make CONFIG_PNPACPI independent of both CONFIG_PNP and CONFIG_X86, or at least independent of CONFIG_ISA? ------------------------------------------------------- This SF.Net email is sponsored by: YOU BE THE JUDGE. Be one of 170 Project Admins to receive an Apple iPod Mini FREE for your judgement on who ports your project to Linux PPC the best. Sponsored by IBM. Deadline: Sept. 24. Go here: http://sf.net/ppc_contest.php