From: Len Brown <len.brown@intel.com>
Reply-To: Len Brown <lenb@kernel.org>
Organization: Intel Open Source Technology Center
To: Matthew Garrett <mjg59@srcf.ucam.org>
Subject: Re: 2.6.18 suspend regression on Intel Macs
Date: Wed, 11 Oct 2006 02:37:54 -0400
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Cc: Arjan van de Ven <arjan@infradead.org>, Pavel Machek <pavel@ucw.cz>,
       =?iso-8859-1?q?Fr=E9d=E9ric_Riss?= <frederic.riss@gmail.com>,
       Linux Kernel list <linux-kernel@vger.kernel.org>,
       Linus Torvalds <torvalds@osdl.org>
References: <1160417982.5142.45.camel@funkylaptop> <1160476889.3000.282.camel@laptopd505.fenrus.org> <20061010212853.GC31972@srcf.ucam.org>
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On Tuesday 10 October 2006 17:28, Matthew Garrett wrote:
> On Tue, Oct 10, 2006 at 12:41:28PM +0200, Arjan van de Ven wrote:
> 
> > "fix" for some value of the word.
> > The problem is that this is very much against the spec, and also quite
> > likely breaks a bunch of machines...
> 
> It works fine under Windows, which suggests that the Windows behaviour 
> is to reenable the bit. 

To me it suggests that both Windows and MacOS provoke the firmware
to re-enable this bit -- it doesn't suggest that the OS is doing it.

> I wouldn't really expect any existing hardware  
> to expect any other sort of behaviour.

I would.  In the known universe, the Mac-mini is the only machine that
seems to need us to explicitly set SCI_EN.

-Len
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