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Date:	Tue, 10 Oct 2006 21:46:24 +0200
From:	Frédéric Riss <frederic.riss@...il.com>
To:	Arjan van de Ven <arjan@...radead.org>
Cc:	Linus Torvalds <torvalds@...l.org>, Pavel Machek <pavel@....cz>,
	Linux Kernel list <linux-kernel@...r.kernel.org>,
	len.brown@...el.com
Subject: Re: 2.6.18 suspend regression on Intel Macs

Le mardi 10 octobre 2006 à 21:38 +0200, Arjan van de Ven a écrit :
> > So what's the plan? Should/Will the ACPI guys remove the bit-preserving
> > change brought in with the latest ACPICA merge?
> 
> 
> it sounds like a good idea to at least put the workaround back for now,
> until a more elegant solution (maybe something can be done to make it
> not needed anymore) is found...
> (or until it shows it breaks other machines at which point
> reconsideration is also needed)

The workaround hasn't been removed. It's still there,
drivers/acpi/pci_link.c:
788 
789 /* Make sure SCI is enabled again (Apple firmware bug?) */
790 acpi_set_register(ACPI_BITREG_SCI_ENABLE, 1, ACPI_MTX_DO_NOT_LOCK);
791 

The thing is acpi_set_register doesn't permit anymore to write the SCI
bit since the last ACPI merge. Or maybe you meant that the
acpi_hw_register_write modifications should be reverted until a better
solution is found?

Fred.

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