From: viresh kumar <viresh.kumar@linaro.org>
To: "Rafael J. Wysocki" <rjw@sisk.pl>
Cc: linaro-kernel@lists.linaro.org, patches@linaro.org,
cpufreq@vger.kernel.org, linux-pm@vger.kernel.org,
linux-kernel@vger.kernel.org, tianyu.lan@intel.com, nm@ti.com,
jinchoi@broadcom.com, sebastian.capella@linaro.org
Subject: Re: [PATCH] cpufreq: suspend/resume governors with PM notifiers
Date: Sat, 16 Nov 2013 10:01:50 +0530 [thread overview]
Message-ID: <5286F536.70403@linaro.org> (raw)
In-Reply-To: <5020664.HldDXMO8cr@vostro.rjw.lan>
On Saturday 16 November 2013 05:54 AM, Rafael J. Wysocki wrote:
> Will cpufreq work during system-wide power transitions (suspend/resume etc.)
> after this? In particular, what about hibernation?
I am disabling governors as soon as we start suspend. So No, cpufreq wouldn't
work during suspend/resume. But once system is resumed we are starting it back
again.
Hibernation is probably not supported by my code yet.. I just went through
hibernation code quickly and it looks we don't send PM_SUSPEND_PREPARE or
PM_POST_SUSPEND notifications in case of hibernation. Correct?
And these are the notifications that we send:
- PM_HIBERNATION_PREPARE
- PM_POST_HIBERNATION
- PM_RESTORE_PREPARE
- PM_POST_RESTORE
If I am not wrong I need to stop governors on PM_HIBERNATION_PREPARE and need to
start them back on: PM_POST_HIBERNATION (I am a bit confused with this one. Does
this POST_HIBERNATION one happens at the end of going into hibernation? or after
booting back? I need a notifier at the end of restore)..
--
viresh
next prev parent reply other threads:[~2013-11-16 4:31 UTC|newest]
Thread overview: 29+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-11-15 10:12 [PATCH] cpufreq: suspend/resume governors with PM notifiers Viresh Kumar
2013-11-15 13:48 ` Nishanth Menon
2013-11-15 15:34 ` Viresh Kumar
2013-11-16 0:24 ` Rafael J. Wysocki
2013-11-16 4:31 ` viresh kumar [this message]
2013-11-16 14:29 ` Rafael J. Wysocki
2013-11-16 15:17 ` Viresh Kumar
2013-11-17 1:08 ` Rafael J. Wysocki
2013-11-17 8:22 ` viresh kumar
2013-11-17 15:09 ` Rafael J. Wysocki
2013-11-17 16:57 ` Viresh Kumar
2013-11-17 21:37 ` Rafael J. Wysocki
2013-11-18 5:39 ` viresh kumar
2013-11-18 10:57 ` Lan Tianyu
2013-11-18 11:01 ` Viresh Kumar
2013-11-18 13:37 ` Lan Tianyu
2013-11-18 15:32 ` Viresh Kumar
2013-11-21 14:39 ` Rafael J. Wysocki
2013-11-20 5:34 ` Viresh Kumar
2013-11-21 1:07 ` Rafael J. Wysocki
2013-11-21 14:38 ` Rafael J. Wysocki
2013-11-21 16:17 ` Viresh Kumar
2013-11-21 22:14 ` Rafael J. Wysocki
2013-11-22 9:11 ` viresh kumar
2013-11-25 4:25 ` Viresh Kumar
2013-11-25 11:35 ` Rafael J. Wysocki
2013-12-25 22:39 ` Pavel Machek
2013-12-26 0:56 ` Rafael J. Wysocki
2013-11-16 5:56 ` Lan Tianyu
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