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From: Pavel Machek <pavel@ucw.cz>
To: Johannes Berg <johannes@sipsolutions.net>
Cc: linux-pm <linux-pm@lists.osdl.org>
Subject: Re: suspend to disk modes, default mode
Date: Tue, 20 Mar 2007 10:33:22 +0100	[thread overview]
Message-ID: <20070320093322.GE3922@elf.ucw.cz> (raw)
In-Reply-To: <1174351671.3645.8.camel@johannes.berg>

Hi!

> This suspend to disk modes stuff really sucks. The last time I looked
> must have been a long time ago because then shutdown was default. Now I
> find that in November 06 you changed it to be platform by default.
> 
> The problem with this is that not all platforms support the "platform"
> mode.
> 
> I have a pm_ops struct for PMU-based Apple powerpc machines that doesn't
> set pm_disk_mode in order not to allow the platform mode because that
> currently fails.
> 
> I also used to think this was for implementing suspend-to-both, is that
> wrong? In any case, I can't live with it being platform by default

No, it is to get ACPI working after resume.

> Maybe we just need a pm_disk_modes bitmap and a default_pm_disk_mode
> member in struct pm_ops instead? What's firmware vs. platform anyway?

bitmap would be nice. Firmware used to mean "let the bios do the whole
suspend", platform means "linux does the suspend, but we tell bios we
are doing it", shutdown means "linux does the suspend, does not tell
anyone".
								Pavel
-- 
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html

  parent reply	other threads:[~2007-03-20  9:33 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2007-03-20  0:47 suspend to disk modes, default mode Johannes Berg
2007-03-20  0:51 ` Johannes Berg
2007-03-20  1:03 ` Johannes Berg
2007-03-20  9:33 ` Pavel Machek [this message]
2007-03-20  9:44   ` Johannes Berg
2007-03-20 10:20     ` Pavel Machek

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