From: Tony Lindgren <tony@atomide.com>
To: David Brownell <david-b@pacbell.net>
Cc: alexey.y.starikovskiy@intel.com, ben@simtec.co.uk,
linux-arm@lists.arm.linux.org.uk, dirk.behme@de.bosch.com,
pavel@ucw.cz, johannes@sipsolutions.net, nico@cam.org,
linux-pm@lists.linux-foundation.org, g.liakhovetski@gmx.de
Subject: Re: [PATCH] implement pm_ops.valid for everybody
Date: Thu, 22 Mar 2007 15:26:49 -0400 [thread overview]
Message-ID: <20070322192647.GB20605@atomide.com> (raw)
In-Reply-To: <200703221129.28722.david-b@pacbell.net>
Hi,
* David Brownell <david-b@pacbell.net> [070322 14:30]:
> On Thursday 22 March 2007 6:44 am, Scott E. Preece wrote:
> > | From: "Rafael J. Wysocki" <rjw@sisk.pl>
> > |
> > | I think we can define "standby" a bit more precisely. Something like:
> > | - processes are frozen,
> > | - devices are suspended,
>
> True of all sleep states, although one wants "suspended" to
> allow different levels of device functionality. (Maybe it
> can wake up, maybe its firmware is monitoring the WLAN, etc.)
In addition to offering wakeup events for individual devices,
the device suspend states should be something like retention
and suspend, where:
Retention is where clocks are off for a device, but power is on.
In this case the device registers are maintained in hardware.
Suspend is where clocks and power are off. In this state the
device registers are maintained in software.
Laptops mostly have suspend, while socs allow both retention
and suspend in many cases.
Regards,
Tony
next prev parent reply other threads:[~2007-03-22 19:26 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 [this message]
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
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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