Date: Sun, 5 Mar 2006 18:11:18 -0500
From: Dave Jones <davej@redhat.com>
To: Andrew Morton <akpm@osdl.org>
Cc: Adrian Bunk <bunk@stusta.de>, len.brown@intel.com,
       linux-acpi@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: Re: [2.6 patch] ACPI should depend on, not select PCI
Message-ID: <20060305231118.GB22019@redhat.com>
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	Andrew Morton <akpm@osdl.org>, Adrian Bunk <bunk@stusta.de>,
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On Sun, Mar 05, 2006 at 02:25:54PM -0800, Andrew Morton wrote:
 > Adrian Bunk <bunk@stusta.de> wrote:
 > >
 > > ACPI should depend on, not select PCI.
 > > 
 > 
 > It's surprising that there's any such linkage, actually.  Is it
 > impossible for a non-PCI system to have ACPI?

When ACPI was concieved (~1999 according to the spec I have handy)
ISA-only PCs were somewhat scarce.  It's probably safe to say anything
that supports ACPI has PCI  (For x86[64] at least, I don't know about ia64)

The spec mentions as a minimum requirement for OSPM/ACPI systems
amongst other things..

"A _PRT method for all root PCI bridges"

which pretty much sounds like it's at dependant on PCI (or a later
evolved standard like PCIE) hardware being present.

		Dave

-- 
http://www.codemonkey.org.uk
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