On Monday, December 02, 2013 11:04:12 AM Viresh Kumar wrote:
> This introduces another 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,
> specially for sending transition failure notifications.
>
> Signed-off-by: Viresh Kumar <viresh.kumar@xxxxxxxxxx>
I've queued this series up for 3.14, but I folded patches [3-5/5] into [2/5]
(and needed to rebase the unicore2 changes).
Every time you want to copy-paste the changelog from one patch to another
(please don't do that any more) you should rather think about sending a
combination of the two as one patch.
Thanks!
> ---
>
> V1->V2:
> - Not required to push it for 3.13 anymore and can go in 3.14.
> - Rebased over following patchset as there were conflicts in unicore2 driver if
> following patchset is applied first (which should be the case):
> https://lkml.org/lkml/2013/10/30/553 (create cpufreq_generic_get() routine)
>
> drivers/cpufreq/cpufreq.c | 14 ++++++++++++++
> include/linux/cpufreq.h | 2 ++
> 2 files changed, 16 insertions(+)
>
> diff --git a/drivers/cpufreq/cpufreq.c b/drivers/cpufreq/cpufreq.c
> index 5e27def..3b877d4 100644
> --- a/drivers/cpufreq/cpufreq.c
> +++ b/drivers/cpufreq/cpufreq.c
> @@ -338,6 +338,20 @@ 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 *
> diff --git a/include/linux/cpufreq.h b/include/linux/cpufreq.h
> index 276e646..b26bfab 100644
> --- a/include/linux/cpufreq.h
> +++ b/include/linux/cpufreq.h
> @@ -316,6 +316,8 @@ int cpufreq_unregister_notifier(struct notifier_block *nb, unsigned int list);
>
> void cpufreq_notify_transition(struct cpufreq_policy *policy,
> struct cpufreq_freqs *freqs, unsigned int state);
> +void cpufreq_notify_post_transition(struct cpufreq_policy *policy,
> + struct cpufreq_freqs *freqs, int transition_failed);
>
> #else /* CONFIG_CPU_FREQ */
> static inline int cpufreq_register_notifier(struct notifier_block *nb,
>
--
I speak only for myself.
Rafael J. Wysocki, Intel Open Source Technology Center.
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