From: Benjamin Herrenschmidt <benh@kernel.crashing.org>
To: Pavel Machek <pavel@ucw.cz>
Cc: abelay@novell.com, Len Brown <len.brown@intel.com>,
Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
Daniel Ritz <daniel.ritz@gmx.ch>,
Dominik Brodowski <linux@dominikbrodowski.net>,
Andrew Morton <akpm@osdl.org>, Hugh Dickins <hugh@veritas.com>,
Dave Airlie <airlied@gmail.com>,
Linus Torvalds <torvalds@osdl.org>
Subject: Re: revert yenta free_irq on suspend
Date: Wed, 03 Aug 2005 13:42:12 +0200 [thread overview]
Message-ID: <1123069333.30257.31.camel@gaston> (raw)
In-Reply-To: <20050802105619.GA1390@elf.ucw.cz>
On Tue, 2005-08-02 at 12:56 +0200, Pavel Machek wrote:
> Hi!
>
> > > Also, as I said earlier, the better we support OSPM initiated power
> > > management, the more likely APM will break. This may be technically
> > > unavoidable on some isolated boxes without quirks. I agree with
> > > Pavel that "do nothing" may make sense, but it seems some devices
> > > may still need to be disabled by the OS. As a real world example,
> > > we currently can't turn off cardbus bridges because it breaks APM
> > > on a couple of older laptops.
> >
> > Won't freeing of IRQs cause problems with things like handhelds that
> > actually rely on an interrupt to wake up ?
>
> Well, you probably don't want to free IRQ that is used for wakeup; but
> if driver is used for wakeup, it probably needs some special handling,
> anyway (right?).
Not necessarily something the driver itself knows about ... For example,
some platforms do a hardware OR between PME and INTA ...
Ben.
next prev parent reply other threads:[~2005-08-03 11:49 UTC|newest]
Thread overview: 58+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-08-01 3:03 revert yenta free_irq on suspend ambx1
2005-08-01 4:53 ` Linus Torvalds
2005-08-01 8:49 ` Benjamin Herrenschmidt
2005-08-02 10:56 ` Pavel Machek
2005-08-03 11:42 ` Benjamin Herrenschmidt [this message]
-- strict thread matches above, loose matches on Subject: below --
2005-07-31 20:34 ambx1
2005-07-31 21:20 ` Pavel Machek
2005-08-01 8:56 ` Benjamin Herrenschmidt
2005-07-31 22:55 ` Linus Torvalds
2005-07-31 23:05 ` Pavel Machek
2005-07-31 23:24 ` Linus Torvalds
2005-07-31 23:27 ` Pavel Machek
2005-07-31 23:44 ` Linus Torvalds
2005-07-31 23:59 ` Dave Airlie
2005-08-01 0:19 ` Linus Torvalds
2005-08-01 0:44 ` Dave Airlie
2005-08-01 1:07 ` Linus Torvalds
2005-08-01 7:15 ` Pavel Machek
2005-08-01 7:01 ` Sanjoy Mahajan
2005-08-01 7:25 ` Pavel Machek
2005-07-31 23:10 ` Dave Airlie
2005-08-01 1:59 ` Shaohua Li
2005-08-01 2:06 ` Andrew Morton
2005-08-01 2:22 ` Shaohua Li
2005-08-01 7:19 ` Pavel Machek
2005-08-01 21:38 ` Rafael J. Wysocki
2005-07-31 5:03 Brown, Len
2005-07-31 5:31 ` Linus Torvalds
2005-07-31 9:49 ` Rafael J. Wysocki
2005-07-31 22:27 ` Dave Jones
2005-08-01 0:00 ` Andreas Steinmetz
2005-08-01 0:06 ` Dave Jones
2005-08-01 0:09 ` Andreas Steinmetz
2005-08-03 9:23 ` Pavel Machek
2005-08-01 8:51 ` Matthew Garrett
2005-07-30 19:10 Hugh Dickins
2005-07-30 20:03 ` Russell King
2005-07-30 20:36 ` Linus Torvalds
2005-07-30 20:54 ` Russell King
2005-07-30 21:10 ` Linus Torvalds
2005-07-30 21:30 ` Russell King
2005-07-30 22:28 ` Rafael J. Wysocki
2005-07-31 4:49 ` Linus Torvalds
2005-08-01 9:06 ` Benjamin Herrenschmidt
2005-07-30 21:20 ` Rafael J. Wysocki
2005-07-30 20:34 ` Linus Torvalds
2005-07-31 13:29 ` Pavel Machek
2005-07-31 15:53 ` Linus Torvalds
2005-07-31 17:09 ` Linus Torvalds
2005-07-30 20:49 ` Rafael J. Wysocki
2005-07-30 21:08 ` Daniel Ritz
2005-07-30 21:32 ` Hugh Dickins
2005-07-30 22:00 ` Rafael J. Wysocki
2005-07-30 22:24 ` Hugh Dickins
2005-07-30 23:09 ` Rafael J. Wysocki
2005-07-31 20:15 ` Rafael J. Wysocki
2005-08-01 20:34 ` Hugh Dickins
2005-08-01 21:54 ` Rafael J. Wysocki
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