linux-kernel - Re: [RFC][PATCH 3/10] PCI PM: Power-manage devices without drivers during suspend-resume

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Message-ID: <20090105105105.GF27199@atrey.karlin.mff.cuni.cz>
Date:	Mon, 5 Jan 2009 11:51:05 +0100
From:	Pavel Machek <pavel@...e.cz>
To:	"Rafael J. Wysocki" <rjw@...k.pl>
Cc:	Len Brown <lenb@...nel.org>,
	Jesse Barnes <jbarnes@...tuousgeek.org>,
	pm list <linux-pm@...ts.linux-foundation.org>,
	Matthew Wilcox <matthew@....cx>,
	"H. Peter Anvin" <hpa@...or.com>,
	LKML <linux-kernel@...r.kernel.org>, Greg KH <greg@...ah.com>,
	Linux PCI <linux-pci@...r.kernel.org>
Subject: Re: [RFC][PATCH 3/10] PCI PM: Power-manage devices without drivers during suspend-resume

> 
> PCI devices without drivers can be put into low power states during
> suspend with the help of pci_prepare_to_sleep() and prevented from
> generating wake-up events during resume with the help of
> pci_enable_wake().  However, it's better not to put bridges into
> low power states during suspend, because that might result in entire
> bus segments being powered off.
> 
> Signed-off-by: Rafael J. Wysocki <rjw@...k.pl>

Acked-by: Pavel Machek <Pavel@...e.cz>

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