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cpufreq: Introduce cpufreq_notify_post_transition()

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This introduces a new routine cpufreq_notify_post_transition() which
can be used to send POSTCHANGE notification for new freq with or
without both {PRE|POST}CHANGE notifications for last freq. This is
useful at multiple places, especially for sending transition failure
notifications.

Signed-off-by: Viresh Kumar <[email protected]>
Signed-off-by: Rafael J. Wysocki <[email protected]>
This commit is contained in:
Viresh Kumar 2013-12-02 11:04:12 +05:30 • committed by Rafael J. Wysocki
commit f7ba3b41e2
2 changed files with 16 additions and 0 deletions
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14
drivers/cpufreq/cpufreq.c
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@ -320,6 +320,20 @@ void cpufreq_notify_transition(struct cpufreq_policy *policy,
}
EXPORT_SYMBOL_GPL(cpufreq_notify_transition);
/* Do post notifications when there are chances that transition has failed */
void cpufreq_notify_post_transition(struct cpufreq_policy *policy,
struct cpufreq_freqs *freqs, int transition_failed)
{
cpufreq_notify_transition(policy, freqs, CPUFREQ_POSTCHANGE);
if (!transition_failed)
return;
swap(freqs->old, freqs->new);
cpufreq_notify_transition(policy, freqs, CPUFREQ_PRECHANGE);
cpufreq_notify_transition(policy, freqs, CPUFREQ_POSTCHANGE);
}
EXPORT_SYMBOL_GPL(cpufreq_notify_post_transition);
/*********************************************************************
* SYSFS INTERFACE *