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Merge branches 'pm-cpufreq' and 'pm-devfreq'

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* pm-cpufreq:
  cpufreq: acpi-cpufreq: Use cpufreq_cpu_get_raw() in ->get()

* pm-devfreq:
  PM / devfreq: Fix incorrect type issue.
  PM / devfreq: tegra: Update governor to use devfreq_update_stats()
  PM / devfreq: comments for get_dev_status usage updated
  PM / devfreq: drop comment about thermal setting max_freq
  PM / devfreq: cache the last call to get_dev_status()
  PM / devfreq: Drop unlikely before IS_ERR(_OR_NULL)
  PM / devfreq: exynos-ppmu: bit-wise operation bugfix.
  PM / devfreq: exynos-ppmu: Update documentation to support PPMUv2
  PM / devfreq: exynos-ppmu: Add the support of PPMUv2 for Exynos5433
  PM / devfreq: event: Remove incorrect property in exynos-ppmu DT binding
This commit is contained in:
Rafael J. Wysocki 2015-09-18 23:05:28 +02:00
commit 7dc1d36e8e
8 changed files with 62 additions and 30 deletions
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5
include/linux/cpufreq.h
View file

@ -127,9 +127,14 @@ struct cpufreq_policy {
#define CPUFREQ_SHARED_TYPE_ANY (3) /* Freq can be set from any dependent CPU*/
#ifdef CONFIG_CPU_FREQ
struct cpufreq_policy *cpufreq_cpu_get_raw(unsigned int cpu);
struct cpufreq_policy *cpufreq_cpu_get(unsigned int cpu);
void cpufreq_cpu_put(struct cpufreq_policy *policy);
#else
static inline struct cpufreq_policy *cpufreq_cpu_get_raw(unsigned int cpu)
{
return NULL;
}
static inline struct cpufreq_policy *cpufreq_cpu_get(unsigned int cpu)
{
return NULL;

24
include/linux/devfreq.h
View file

@ -65,7 +65,10 @@ struct devfreq_dev_status {
* The "flags" parameter's possible values are
* explained above with "DEVFREQ_FLAG_*" macros.
* @get_dev_status: The device should provide the current performance
* status to devfreq, which is used by governors.
* status to devfreq. Governors are recommended not to
* use this directly. Instead, governors are recommended
* to use devfreq_update_stats() along with
* devfreq.last_status.
* @get_cur_freq: The device should provide the current frequency
* at which it is operating.
* @exit: An optional callback that is called when devfreq
@ -161,6 +164,7 @@ struct devfreq {
struct delayed_work work;
unsigned long previous_freq;
struct devfreq_dev_status last_status;
void *data; /* private data for governors */
@ -204,6 +208,19 @@ extern int devm_devfreq_register_opp_notifier(struct device *dev,
extern void devm_devfreq_unregister_opp_notifier(struct device *dev,
struct devfreq *devfreq);
/**
* devfreq_update_stats() - update the last_status pointer in struct devfreq
* @df: the devfreq instance whose status needs updating
*
* Governors are recommended to use this function along with last_status,
* which allows other entities to reuse the last_status without affecting
* the values fetched later by governors.
*/
static inline int devfreq_update_stats(struct devfreq *df)
{
return df->profile->get_dev_status(df->dev.parent, &df->last_status);
}
#if IS_ENABLED(CONFIG_DEVFREQ_GOV_SIMPLE_ONDEMAND)
/**
* struct devfreq_simple_ondemand_data - void *data fed to struct devfreq
@ -289,6 +306,11 @@ static inline void devm_devfreq_unregister_opp_notifier(struct device *dev,
struct devfreq *devfreq)
{
}
static inline int devfreq_update_stats(struct devfreq *df)
{
return -EINVAL;
}
#endif /* CONFIG_PM_DEVFREQ */
#endif /* __LINUX_DEVFREQ_H__ */