From: Mark Brown <broonie@opensource.wolfsonmicro.com>
To: Sundar R IYER <sundar.iyer@stericsson.com>
Cc: Alan Stern <stern@rowland.harvard.edu>,
"samu.p.onkalo@nokia.com" <samu.p.onkalo@nokia.com>,
Linus WALLEIJ <linus.walleij@stericsson.com>,
Naveen Kumar GADDIPATI <naveen.gaddipati@stericsson.com>,
Dmitry Torokhov <dmitry.torokhov@gmail.com>,
"linux-input@vger.kernel.org" <linux-input@vger.kernel.org>,
Linux-pm mailing list <linux-pm@lists.linux-foundation.org>,
Jayeeta BANDYOPADHYAY <jayeeta.banerjee@stericsson.com>
Subject: Re: [linux-pm] [RFC] input: syfs switches for SKE keypad
Date: Wed, 13 Oct 2010 10:57:37 +0100 [thread overview]
Message-ID: <20101013095737.GI6424@rakim.wolfsonmicro.main> (raw)
In-Reply-To: <33A307AF30D7BF4F811B1568FE7A9B180468A9419A@EXDCVYMBSTM006.EQ1STM.local>
On Wed, Oct 13, 2010 at 08:16:20AM +0200, Sundar R IYER wrote:
> >> This isn't *really* about saving power in the individual device; it's
> >> more about stopping the device generating events that disrupt the rest
> >> of the system. Suspending the device can be one way of doing that and
> >> is useful if it can be done but is not really the immediate goal here.
> >Runtime PM is _not_ a reliable way of preventing a device from
> >generating events. It is meant for saving energy, nothing else.
> >If that's what this is about, then the answer is simple: Don't use
> >runtime PM to try to suppress events.
> I think it is unfair to discriminate here about saving power and turning off
> events. I believe putting the device into power save leads to, if device permits
> preventing generating events is valid to hook up run time PM.
This is the opposite way around to expectations - the expectation is
that runtime power management will flow from the device becoming idle
enough to turn off rather than the other way around.
next prev parent reply other threads:[~2010-10-13 9:57 UTC|newest]
Thread overview: 94+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-10-05 16:54 [RFC] input: syfs switches for SKE keypad Sundar R IYER
2010-10-05 17:41 ` Dmitry Torokhov
2010-10-06 8:32 ` Trilok Soni
2010-10-06 8:56 ` Sundar R IYER
2010-10-06 9:48 ` Onkalo Samu
2010-10-06 11:41 ` Trilok Soni
2010-10-06 11:58 ` Sundar R IYER
2010-10-06 15:43 ` Dmitry Torokhov
2010-10-06 16:19 ` [linux-pm] " Alan Stern
2010-10-06 17:18 ` Dmitry Torokhov
2010-10-06 18:19 ` Alan Stern
2010-10-06 18:26 ` Dmitry Torokhov
2010-10-06 18:51 ` Alan Stern
2010-10-06 19:08 ` Rafael J. Wysocki
2010-10-06 19:08 ` [linux-pm] " Rafael J. Wysocki
2010-10-06 20:08 ` Alan Stern
2010-10-06 20:08 ` [linux-pm] " Alan Stern
2010-10-09 10:52 ` Rafael J. Wysocki
2010-10-09 10:52 ` [linux-pm] " Rafael J. Wysocki
2010-10-09 22:46 ` Alan Stern
2010-10-09 23:02 ` Rafael J. Wysocki
2010-10-09 23:02 ` [linux-pm] " Rafael J. Wysocki
2010-10-10 20:34 ` Alan Stern
2010-10-10 20:51 ` Dmitry Torokhov
2010-10-10 21:09 ` Alan Stern
2010-10-10 22:24 ` Rafael J. Wysocki
2010-10-10 22:24 ` [linux-pm] " Rafael J. Wysocki
2010-10-11 15:56 ` Alan Stern
2010-10-11 22:33 ` Rafael J. Wysocki
2010-10-11 22:33 ` [linux-pm] " Rafael J. Wysocki
2010-10-12 0:08 ` Alan Stern
2010-10-12 0:08 ` [linux-pm] " Alan Stern
2010-10-12 18:46 ` Rafael J. Wysocki
2010-10-12 18:46 ` [linux-pm] " Rafael J. Wysocki
2010-10-11 15:56 ` Alan Stern
2010-10-11 3:16 ` [linux-pm] " Dmitry Torokhov
2010-10-11 16:06 ` Alan Stern
2010-10-11 16:06 ` [linux-pm] " Alan Stern
2010-10-11 16:15 ` Dmitry Torokhov
2010-10-11 16:15 ` [linux-pm] " Dmitry Torokhov
2010-10-11 16:53 ` Alan Stern
2010-10-11 17:07 ` Dmitry Torokhov
2010-10-11 21:54 ` Alan Stern
2010-10-11 22:08 ` Dmitry Torokhov
2010-10-11 22:08 ` [linux-pm] " Dmitry Torokhov
2010-10-12 7:25 ` Sundar R IYER
2010-10-12 7:25 ` [linux-pm] " Sundar R IYER
2010-10-12 15:34 ` Alan Stern
2010-10-12 15:53 ` Dmitry Torokhov
2010-10-12 15:53 ` [linux-pm] " Dmitry Torokhov
2010-10-12 17:45 ` Alan Stern
2010-10-12 17:45 ` [linux-pm] " Alan Stern
2010-10-12 16:32 ` Sundar R IYER
2010-10-12 16:32 ` [linux-pm] " Sundar R IYER
2010-10-12 17:49 ` Mark Brown
2010-10-12 17:49 ` [linux-pm] " Mark Brown
2010-10-12 18:27 ` Alan Stern
2010-10-12 18:27 ` [linux-pm] " Alan Stern
2010-10-12 18:30 ` Mark Brown
2010-10-12 18:30 ` Mark Brown
2010-10-13 6:16 ` [linux-pm] " Sundar R IYER
2010-10-13 9:57 ` Mark Brown [this message]
2010-10-13 14:10 ` Alan Stern
2010-10-13 14:10 ` [linux-pm] " Alan Stern
2010-10-13 17:25 ` Sundar
2010-10-13 17:25 ` [linux-pm] " Sundar
2010-10-13 17:37 ` Alan Stern
2010-10-13 17:42 ` Sundar
2010-10-13 18:00 ` Sundar
2010-10-13 18:00 ` [linux-pm] " Sundar
2010-10-13 20:26 ` Rafael J. Wysocki
2010-10-14 13:50 ` Alan Stern
2010-10-14 13:50 ` [linux-pm] " Alan Stern
2010-10-14 19:00 ` Rafael J. Wysocki
2010-10-15 16:04 ` Sundar
2010-10-15 16:04 ` [linux-pm] " Sundar
2010-10-14 19:00 ` Rafael J. Wysocki
2010-10-13 20:26 ` Rafael J. Wysocki
2010-10-13 17:42 ` Sundar
2010-10-13 17:37 ` Alan Stern
2010-10-13 9:57 ` Mark Brown
2010-10-13 6:16 ` Sundar R IYER
2010-10-12 15:34 ` Alan Stern
2010-10-11 21:54 ` Alan Stern
2010-10-11 17:07 ` Dmitry Torokhov
2010-10-11 16:53 ` Alan Stern
2010-10-11 3:16 ` Dmitry Torokhov
2010-10-10 21:09 ` Alan Stern
2010-10-10 20:51 ` Dmitry Torokhov
2010-10-10 20:34 ` Alan Stern
2010-10-09 22:46 ` Alan Stern
2010-10-13 7:11 ` [linux-pm] " Pavel Machek
2010-10-13 17:35 ` Ferenc Wagner
2010-10-13 19:20 ` [linux-pm] " Pavel Machek
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