linux-kernel - Re: [git pull request] ACPI patches for 2.6.34-rc6

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Message-ID: <alpine.LFD.2.00.1005111107020.3711@i5.linux-foundation.org>
Date:	Tue, 11 May 2010 11:17:34 -0700 (PDT)
From:	Linus Torvalds <torvalds@...ux-foundation.org>
To:	Matthew Garrett <mjg59@...f.ucam.org>
cc:	Len Brown <lenb@...nel.org>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	linux-acpi@...r.kernel.org,
	Andrew Morton <akpm@...ux-foundation.org>
Subject: Re: [git pull request] ACPI patches for 2.6.34-rc6



On Tue, 11 May 2010, Matthew Garrett wrote:
> 
> I see Windows write the SCI_EN bit without reading it first and without 
> calling the ACPI enable SMM function.

Hmm. So presumably Windows doesn't even do them bit-by-bit, but simply 
does a "restore PM1 Control register value" on resume.

And I guess it probably does the same for the PM1_ENABLE register and the 
PM2 control registers too?

Just restoring the whole register values _does_ sound a lot simpler than 
worrying about individual bits.

		Linus
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