From: "Rafael J. Wysocki" <rjw@sisk.pl>
To: David Brownell <david-b@pacbell.net>
Cc: alexey.y.starikovskiy@intel.com, ben@simtec.co.uk,
dirk.behme@de.bosch.com, pavel@ucw.cz,
linux-pm@lists.linux-foundation.org, johannes@sipsolutions.net,
nico@cam.org, g.liakhovetski@gmx.de
Subject: Re: [PATCH] implement pm_ops.valid for everybody
Date: Sat, 24 Mar 2007 22:36:49 +0100 [thread overview]
Message-ID: <200703242236.51045.rjw@sisk.pl> (raw)
In-Reply-To: <200703241349.19964.david-b@pacbell.net>
On Saturday, 24 March 2007 21:49, David Brownell wrote:
> On Friday 23 March 2007 1:39 pm, Rafael J. Wysocki wrote:
>
> > After we have frozen tasks, we need to
> > call something like device_suspend(some_argument) where the argument should
> > tell drivers what to do.
>
> That parameter can't suffice, since the exact details depend on
> system-dependent context. Example, on one system a given sleep
> state will allow a given device to issue wakeups ... on another,
> it won't.
>
> You seem to have overlooked the clk_must_disable() patches I
> recently re-sent. In conjunction with the driver model wakeup
> flags, that can solve the problem on every SOC platform I've
> had a reason to look at ... see how it works for AT91 USB.
Do I understand correctly that the idea is to introduce some functions
(eg. clk_must_disable()) that each platform can define differently and
that can be used by device drivers to obtain the additional information
needed to figure out what they are expected to do in .suspend()?
Rafael
next prev parent reply other threads:[~2007-03-24 21:36 UTC|newest]
Thread overview: 68+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-03-22 13:44 [PATCH] implement pm_ops.valid for everybody Scott E. Preece
2007-03-22 18:29 ` David Brownell
2007-03-22 19:26 ` Tony Lindgren
2007-03-22 21:16 ` David Brownell
2007-03-23 13:15 ` tony
2007-03-23 18:25 ` David Brownell
2007-03-22 21:37 ` Rafael J. Wysocki
2007-03-22 21:27 ` Rafael J. Wysocki
2007-03-22 21:43 ` David Brownell
2007-03-22 21:56 ` Guennadi Liakhovetski
2007-03-22 22:42 ` David Brownell
2007-03-22 22:10 ` Rafael J. Wysocki
2007-03-22 22:56 ` David Brownell
2007-03-22 23:21 ` Rafael J. Wysocki
2007-03-22 23:55 ` David Brownell
2007-03-23 1:14 ` Matthew Locke
2007-03-23 13:17 ` tony
2007-03-23 13:35 ` Igor Stoppa
2007-03-23 14:52 ` tony
2007-03-23 15:17 ` Igor Stoppa
2007-03-23 18:51 ` Matthew Locke
2007-03-23 19:19 ` Igor Stoppa
2007-03-23 18:29 ` David Brownell
2007-03-23 19:21 ` Matthew Locke
2007-03-23 20:11 ` David Brownell
2007-03-23 6:46 ` Guennadi Liakhovetski
2007-03-23 16:15 ` David Brownell
2007-03-23 21:08 ` Guennadi Liakhovetski
2007-03-24 0:52 ` David Brownell
2007-03-23 13:43 ` Rafael J. Wysocki
2007-03-23 17:57 ` David Brownell
2007-03-23 20:39 ` Rafael J. Wysocki
2007-03-24 0:01 ` Pavel Machek
2007-03-24 0:54 ` David Brownell
2007-03-24 20:01 ` Rafael J. Wysocki
2007-03-24 0:41 ` Dmitry Krivoschekov
2007-03-24 20:49 ` David Brownell
2007-03-24 21:01 ` Johannes Berg
2007-03-25 1:02 ` David Brownell
2007-03-24 21:36 ` Rafael J. Wysocki [this message]
2007-03-24 22:19 ` David Brownell
2007-03-25 10:26 ` Dmitry Krivoschekov
2007-03-25 15:20 ` David Brownell
2007-03-25 16:23 ` Jim Gettys
2007-03-25 16:55 ` David Brownell
2007-03-23 18:18 ` Matthew Locke
2007-03-24 3:08 ` Paul Mackerras
2007-03-24 20:04 ` Rafael J. Wysocki
2007-03-22 23:29 ` Guennadi Liakhovetski
2007-03-22 23:44 ` David Brownell
2007-03-22 23:45 ` Guennadi Liakhovetski
2007-03-22 21:33 ` Rafael J. Wysocki
-- strict thread matches above, loose matches on Subject: below --
2007-03-20 1:58 [PATCH] rework pm_ops pm_disk_modes foo Johannes Berg
2007-03-20 8:46 ` [PATCH v2] " Johannes Berg
2007-03-20 9:31 ` Pavel Machek
2007-03-20 9:36 ` Johannes Berg
2007-03-20 9:43 ` Pavel Machek
2007-03-20 10:17 ` [PATCH] add firmware disk state and clean up Johannes Berg
2007-03-20 10:25 ` Pavel Machek
2007-03-20 11:06 ` [PATCH] implement pm_ops.valid for everybody Johannes Berg
2007-03-20 13:16 ` Pavel Machek
2007-03-20 23:44 ` David Brownell
2007-03-20 22:49 ` Pavel Machek
2007-03-21 21:01 ` Guennadi Liakhovetski
2007-03-21 22:07 ` David Brownell
2007-03-21 22:36 ` Guennadi Liakhovetski
2007-03-21 22:57 ` Pavel Machek
2007-03-21 23:25 ` David Brownell
2007-03-21 23:31 ` Pavel Machek
2007-03-22 10:03 ` Johannes Berg
2007-03-22 17:10 ` David Brownell
2007-03-22 17:18 ` Johannes Berg
2007-03-22 18:13 ` David Brownell
2007-03-22 18:18 ` Johannes Berg
2007-03-21 23:32 ` Rafael J. Wysocki
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