From: "Rafael J. Wysocki" <rjw@sisk.pl>
To: Alan Stern <stern@rowland.harvard.edu>
Cc: linux-sh@vger.kernel.org, LKML <linux-kernel@vger.kernel.org>,
Grant Likely <grant.likely@secretlab.ca>,
Linux PM mailing list <linux-pm@lists.linux-foundation.org>
Subject: Re: [RFC][PATCH] PM: Make power domain callbacks take precedence over subsystem ones
Date: Sat, 16 Apr 2011 01:18:23 +0200 [thread overview]
Message-ID: <201104160118.24113.rjw__39994.4790792235$1302909612$gmane$org@sisk.pl> (raw)
In-Reply-To: <Pine.LNX.4.44L0.1104151033020.2051-100000@iolanthe.rowland.org>
On Friday, April 15, 2011, Alan Stern wrote:
> On Fri, 15 Apr 2011, Rafael J. Wysocki wrote:
>
> > On Thursday, April 14, 2011, Magnus Damm wrote:
>
> > > My only thought on this is if we really want to limit ourselves to
> > > only control power domains using these callbacks. I can imagine that
> > > some SoCs want to do other non-power domain specific operations with
> > > these callbacks, and if so, perhaps using the term power domain as
> > > name of the pointer in struct device would be somewhat odd. OTOH, I
> > > really dislike naming discussions in general and I can't really think
> > > of any good names. So it all looks more like a set of system specific
> > > PM override hooks.
> > >
> > > Or is there something that is really power domain specific with these hooks?
> >
> > Not in principle, but I think there is. Namely, if there are two groups
> > of devices belonging to the same bus type (e.g. platform) that each require
> > different PM handling, it is legitimate to call them "power domains" (where
> > "domain" means "a set of devices related to each other because of the way
> > they need to be handled"), even if they don't share power resources.
> >
> > Of course, if they do share power resources, the term is just right. :-)
>
> They could be called "PM domains" instead of "power domains". That's
> legitimate because they do get used by the PM core, even if they don't
> literally involve groups of devices sharing the same power supply.
Well, "power domain" can be regarded as a short form of "power management
domain", which makes the point kind of moot. ;-)
Rafael
next prev parent reply other threads:[~2011-04-15 23:18 UTC|newest]
Thread overview: 192+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-04-13 0:05 [RFC][PATCH] PM: Make power domain callbacks take precedence over subsystem ones Rafael J. Wysocki
2011-04-13 0:05 ` Rafael J. Wysocki
2011-04-13 14:17 ` Alan Stern
2011-04-13 14:17 ` [RFC][PATCH] PM: Make power domain callbacks take precedence Alan Stern
2011-04-13 14:17 ` [RFC][PATCH] PM: Make power domain callbacks take precedence over subsystem ones Alan Stern
2011-04-13 16:15 ` [RFC][PATCH] PM: Make power domain callbacks take precedence over Grant Likely
2011-04-13 16:15 ` [RFC][PATCH] PM: Make power domain callbacks take precedence over subsystem ones Grant Likely
2011-04-14 23:12 ` Rafael J. Wysocki
2011-04-14 23:12 ` Rafael J. Wysocki
2011-04-15 14:38 ` [RFC][PATCH] PM: Make power domain callbacks take precedence over Grant Likely
2011-04-15 14:38 ` [RFC][PATCH] PM: Make power domain callbacks take precedence over subsystem ones Grant Likely
2011-04-15 14:38 ` Grant Likely
2011-04-15 14:39 ` Alan Stern
2011-04-15 14:39 ` [RFC][PATCH] PM: Make power domain callbacks take precedence Alan Stern
2011-04-15 14:39 ` [RFC][PATCH] PM: Make power domain callbacks take precedence over subsystem ones Alan Stern
2011-04-14 23:12 ` Rafael J. Wysocki
2011-04-13 16:15 ` Grant Likely
2011-04-14 18:20 ` [RFC][PATCH] PM: Make power domain callbacks take precedence over Magnus Damm
2011-04-14 18:20 ` [RFC][PATCH] PM: Make power domain callbacks take precedence over subsystem ones Magnus Damm
2011-04-14 22:45 ` Rafael J. Wysocki
2011-04-14 22:45 ` Rafael J. Wysocki
2011-04-14 22:45 ` Rafael J. Wysocki
2011-04-15 14:34 ` Alan Stern
2011-04-15 14:34 ` [RFC][PATCH] PM: Make power domain callbacks take precedence Alan Stern
2011-04-15 14:34 ` [RFC][PATCH] PM: Make power domain callbacks take precedence over subsystem ones Alan Stern
2011-04-15 23:18 ` Rafael J. Wysocki [this message]
2011-04-15 23:18 ` Rafael J. Wysocki
2011-04-15 23:18 ` Rafael J. Wysocki
2011-04-16 17:15 ` [RFC][PATCH] PM: Make power domain callbacks take precedence Kevin Hilman
2011-04-16 17:15 ` [RFC][PATCH] PM: Make power domain callbacks take precedence over subsystem ones Kevin Hilman
2011-04-16 23:12 ` Rafael J. Wysocki
2011-04-16 23:12 ` Rafael J. Wysocki
2011-04-16 23:12 ` Rafael J. Wysocki
2011-04-16 17:15 ` Kevin Hilman
2011-04-14 18:20 ` Magnus Damm
2011-04-14 23:16 ` [RFC][PATCH 0/2] Remove __weak definitions of platform PM callbacks Rafael J. Wysocki
2011-04-14 23:16 ` Rafael J. Wysocki
2011-04-14 23:18 ` [RFC][PATCH 1/2] shmobile: Use power domains for platform runtime PM Rafael J. Wysocki
2011-04-14 23:18 ` Rafael J. Wysocki
2011-04-14 23:18 ` Rafael J. Wysocki
2011-04-14 23:19 ` [RFC][PATCH 2/2] PM / Platform: Use generic runtime PM callbacks directly Rafael J. Wysocki
2011-04-14 23:19 ` Rafael J. Wysocki
2011-04-14 23:19 ` Rafael J. Wysocki
2011-04-14 23:16 ` [RFC][PATCH 0/2] Remove __weak definitions of platform PM callbacks Rafael J. Wysocki
2011-04-16 17:17 ` [RFC][PATCH] PM: Make power domain callbacks take precedence Kevin Hilman
2011-04-16 17:17 ` [RFC][PATCH] PM: Make power domain callbacks take precedence over subsystem ones Kevin Hilman
2011-04-16 17:17 ` Kevin Hilman
2011-04-16 23:35 ` [PATCH 0/9] PM: Rework shmobile and OMAP runtime PM using power domains Rafael J. Wysocki
2011-04-16 23:35 ` Rafael J. Wysocki
2011-04-16 23:35 ` Rafael J. Wysocki
2011-04-16 23:36 ` [PATCH 1/9] PM: Make power domain callbacks take precedence over subsystem ones Rafael J. Wysocki
2011-04-16 23:36 ` Rafael J. Wysocki
2011-04-16 23:36 ` Rafael J. Wysocki
2011-04-16 23:37 ` [PATCH 2/9] PM: Export platform bus type's default PM callbacks Rafael J. Wysocki
2011-04-16 23:37 ` Rafael J. Wysocki
2011-04-16 23:37 ` Rafael J. Wysocki
2011-04-16 23:38 ` [PATCH 3/9] shmobile: Use power domains for platform runtime PM Rafael J. Wysocki
2011-04-16 23:38 ` Rafael J. Wysocki
2011-04-16 23:38 ` Rafael J. Wysocki
2011-04-16 23:38 ` [PATCH 4/9] PM / Platform: Use generic runtime PM callbacks directly Rafael J. Wysocki
2011-04-16 23:38 ` Rafael J. Wysocki
2011-04-16 23:38 ` Rafael J. Wysocki
2011-04-16 23:39 ` [PATCH 5/9] OMAP2+ / PM: Move runtime PM implementation to use power domains Rafael J. Wysocki
2011-04-16 23:39 ` Rafael J. Wysocki
2011-04-16 23:39 ` Rafael J. Wysocki
2011-04-16 23:40 ` [PATCH 6/9] PM / Runtime: Add subsystem data field to struct dev_pm_info Rafael J. Wysocki
2011-04-16 23:40 ` Rafael J. Wysocki
2011-04-16 23:40 ` Rafael J. Wysocki
2011-04-16 23:42 ` [PATCH 7/9] PM / Runtime: Add generic clock manipulation rountines for runtime PM Rafael J. Wysocki
2011-04-16 23:42 ` Rafael J. Wysocki
2011-04-16 23:42 ` Rafael J. Wysocki
2011-04-18 19:59 ` [Update][PATCH " Rafael J. Wysocki
2011-04-18 19:59 ` Rafael J. Wysocki
2011-04-18 19:59 ` Rafael J. Wysocki
2011-04-19 10:18 ` Magnus Damm
2011-04-19 10:18 ` [Update][PATCH 7/9] PM / Runtime: Add generic clock manipulation Magnus Damm
2011-04-19 10:18 ` [Update][PATCH 7/9] PM / Runtime: Add generic clock manipulation rountines for runtime PM Magnus Damm
2011-04-19 21:42 ` Rafael J. Wysocki
2011-04-19 21:42 ` Rafael J. Wysocki
2011-04-19 21:59 ` Paul Mundt
2011-04-19 21:59 ` Paul Mundt
2011-04-19 22:10 ` Rafael J. Wysocki
2011-04-19 22:10 ` Rafael J. Wysocki
2011-04-19 22:10 ` Rafael J. Wysocki
2011-04-19 22:20 ` Paul Mundt
2011-04-19 22:20 ` Paul Mundt
2011-04-19 22:20 ` Paul Mundt
2011-04-19 22:50 ` Rafael J. Wysocki
2011-04-19 22:50 ` Rafael J. Wysocki
2011-04-19 22:50 ` Rafael J. Wysocki
2011-04-19 21:59 ` Paul Mundt
2011-04-19 21:42 ` Rafael J. Wysocki
2011-04-19 10:58 ` [PATCH " Mark Brown
2011-04-19 10:58 ` [linux-pm] [PATCH 7/9] PM / Runtime: Add generic clock Mark Brown
2011-04-19 10:58 ` [linux-pm] [PATCH 7/9] PM / Runtime: Add generic clock manipulation rountines for runtime PM Mark Brown
2011-04-19 21:35 ` Rafael J. Wysocki
2011-04-19 21:35 ` Rafael J. Wysocki
2011-04-20 11:57 ` Mark Brown
2011-04-20 11:57 ` [linux-pm] [PATCH 7/9] PM / Runtime: Add generic clock Mark Brown
2011-04-20 11:57 ` [linux-pm] [PATCH 7/9] PM / Runtime: Add generic clock manipulation rountines for runtime PM Mark Brown
2011-04-19 21:35 ` Rafael J. Wysocki
2011-04-16 23:43 ` [PATCH 8/9] OMAP1 / PM: Use generic clock manipulation routines " Rafael J. Wysocki
2011-04-16 23:43 ` Rafael J. Wysocki
2011-04-18 8:18 ` Paul Mundt
2011-04-18 8:18 ` Paul Mundt
2011-04-18 19:57 ` Rafael J. Wysocki
2011-04-18 19:57 ` Rafael J. Wysocki
2011-04-18 19:57 ` Rafael J. Wysocki
2011-04-18 8:18 ` Paul Mundt
2011-04-16 23:43 ` Rafael J. Wysocki
2011-04-16 23:44 ` [PATCH 9/9] PM: Revert "driver core: platform_bus: allow runtime override of dev_pm_ops" Rafael J. Wysocki
2011-04-16 23:44 ` Rafael J. Wysocki
2011-04-16 23:44 ` Rafael J. Wysocki
2011-04-24 21:30 ` [PATCH 0/9] PM: Rework shmobile and OMAP runtime PM using power domains (v2) Rafael J. Wysocki
2011-04-24 21:30 ` Rafael J. Wysocki
2011-04-24 21:30 ` Rafael J. Wysocki
2011-04-24 21:36 ` [PATCH 1/9] PM: Make power domain callbacks take precedence over subsystem ones Rafael J. Wysocki
2011-04-24 21:36 ` Rafael J. Wysocki
2011-04-24 21:36 ` Rafael J. Wysocki
2011-04-24 21:37 ` [PATCH 2/9] PM: Export platform bus type's default PM callbacks Rafael J. Wysocki
2011-04-24 21:37 ` Rafael J. Wysocki
2011-04-24 21:37 ` Rafael J. Wysocki
2011-04-24 21:38 ` [PATCH 3/9] shmobile: Use power domains for platform runtime PM Rafael J. Wysocki
2011-04-24 21:38 ` Rafael J. Wysocki
2011-04-24 21:38 ` Rafael J. Wysocki
2011-04-24 21:39 ` [PATCH 4/9] PM / Platform: Use generic runtime PM callbacks directly Rafael J. Wysocki
2011-04-24 21:39 ` Rafael J. Wysocki
2011-04-24 21:39 ` Rafael J. Wysocki
2011-04-24 21:41 ` [PATCH 5/9] OMAP2+ / PM: move runtime PM implementation to use device power domains Rafael J. Wysocki
2011-04-24 21:41 ` Rafael J. Wysocki
2011-04-24 21:41 ` Rafael J. Wysocki
2011-04-24 21:42 ` [PATCH 6/9] PM / Runtime: Add subsystem data field to struct dev_pm_info Rafael J. Wysocki
2011-04-24 21:42 ` Rafael J. Wysocki
2011-04-24 21:42 ` Rafael J. Wysocki
2011-04-24 21:42 ` [PATCH 7/9] PM / Runtime: Generic clock manipulation rountines for runtime PM (v2) Rafael J. Wysocki
2011-04-24 21:42 ` Rafael J. Wysocki
2011-04-24 21:42 ` Rafael J. Wysocki
2011-04-27 21:48 ` [Update][PATCH 7/9] PM / Runtime: Generic clock manipulation rountines for runtime PM (v3) Rafael J. Wysocki
2011-04-27 21:48 ` Rafael J. Wysocki
2011-04-27 21:48 ` Rafael J. Wysocki
2011-04-27 23:04 ` [Update][PATCH 7/9] PM / Runtime: Generic clock manipulation Colin Cross
2011-04-27 23:04 ` [Update][PATCH 7/9] PM / Runtime: Generic clock manipulation rountines for runtime PM (v3) Colin Cross
2011-04-28 0:58 ` Rafael J. Wysocki
2011-04-28 0:58 ` Rafael J. Wysocki
2011-04-28 0:58 ` Rafael J. Wysocki
2011-04-28 1:06 ` Rafael J. Wysocki
2011-04-28 1:06 ` Rafael J. Wysocki
2011-04-28 1:33 ` Rafael J. Wysocki
2011-04-28 1:33 ` Rafael J. Wysocki
2011-04-28 1:33 ` Rafael J. Wysocki
2011-04-28 19:36 ` [Update x2][PATCH 7/9] PM / Runtime: Generic clock manipulation rountines for runtime PM (v5) Rafael J. Wysocki
2011-04-28 19:36 ` Rafael J. Wysocki
2011-04-29 19:35 ` Stephen Boyd
2011-04-29 19:35 ` [Update x2][PATCH 7/9] PM / Runtime: Generic clock manipulation Stephen Boyd
2011-04-29 19:35 ` [Update x2][PATCH 7/9] PM / Runtime: Generic clock manipulation rountines for runtime PM (v5) Stephen Boyd
2011-04-29 20:29 ` Rafael J. Wysocki
2011-04-29 20:29 ` Rafael J. Wysocki
2011-04-29 22:04 ` [Update x3][PATCH 7/9] PM / Runtime: Generic clock manipulation rountines for runtime PM (v6) Rafael J. Wysocki
2011-04-29 22:04 ` Rafael J. Wysocki
2011-04-29 22:04 ` Rafael J. Wysocki
2011-05-03 17:00 ` Stephen Boyd
2011-05-03 17:00 ` [Update x3][PATCH 7/9] PM / Runtime: Generic clock manipulation Stephen Boyd
2011-05-03 17:00 ` [Update x3][PATCH 7/9] PM / Runtime: Generic clock manipulation rountines for runtime PM (v6) Stephen Boyd
2011-05-03 17:38 ` Rafael J. Wysocki
2011-05-03 17:38 ` Rafael J. Wysocki
2011-05-03 17:38 ` Rafael J. Wysocki
2011-04-29 20:29 ` [Update x2][PATCH 7/9] PM / Runtime: Generic clock manipulation rountines for runtime PM (v5) Rafael J. Wysocki
2011-04-28 19:36 ` Rafael J. Wysocki
2011-04-28 1:06 ` [Update][PATCH 7/9] PM / Runtime: Generic clock manipulation rountines for runtime PM (v3) Rafael J. Wysocki
2011-04-29 20:50 ` Grant Likely
2011-04-29 20:50 ` [Update][PATCH 7/9] PM / Runtime: Generic clock manipulation Grant Likely
2011-04-29 20:50 ` [Update][PATCH 7/9] PM / Runtime: Generic clock manipulation rountines for runtime PM (v3) Grant Likely
2011-04-29 21:07 ` Rafael J. Wysocki
2011-04-29 21:07 ` Rafael J. Wysocki
2011-04-29 21:07 ` Rafael J. Wysocki
2011-04-27 23:04 ` Colin Cross
2011-04-24 21:43 ` [PATCH 8/9] OMAP1 / PM: Use generic clock manipulation routines for runtime PM Rafael J. Wysocki
2011-04-24 21:43 ` Rafael J. Wysocki
2011-05-16 10:16 ` Kevin Hilman
2011-05-16 10:16 ` Kevin Hilman
2011-05-16 18:26 ` Rafael J. Wysocki
2011-05-16 18:26 ` Rafael J. Wysocki
2011-05-16 18:26 ` Rafael J. Wysocki
2011-05-16 10:16 ` Kevin Hilman
2011-04-24 21:43 ` Rafael J. Wysocki
2011-04-24 21:44 ` [PATCH 9/9] PM: Revert "driver core: platform_bus: allow runtime override of dev_pm_ops" Rafael J. Wysocki
2011-04-24 21:44 ` Rafael J. Wysocki
2011-04-24 21:44 ` Rafael J. Wysocki
2011-04-24 23:36 ` [PATCH 0/9] PM: Rework shmobile and OMAP runtime PM using power domains (v2) Greg KH
2011-04-24 23:36 ` [PATCH 0/9] PM: Rework shmobile and OMAP runtime PM using power Greg KH
2011-04-24 23:36 ` [PATCH 0/9] PM: Rework shmobile and OMAP runtime PM using power domains (v2) Greg KH
2011-04-13 0:05 [RFC][PATCH] PM: Make power domain callbacks take precedence over subsystem ones Rafael J. Wysocki
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