Messages in this thread Patch in this message | | | From | Borislav Petkov <> | Subject | [PATCH 4/6] cpufreq: Add a get_current_driver helper | Date | Sun, 20 Jan 2013 11:24:28 +0100 |
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From: Borislav Petkov <bp@suse.de>
Add a helper function to return cpufreq_driver->name.
Signed-off-by: Borislav Petkov <bp@suse.de> --- drivers/cpufreq/cpufreq.c | 14 ++++++++++++++ include/linux/cpufreq.h | 1 + 2 files changed, 15 insertions(+)
diff --git a/drivers/cpufreq/cpufreq.c b/drivers/cpufreq/cpufreq.c index 1f93dbd72355..6ed3c1377caf 100644 --- a/drivers/cpufreq/cpufreq.c +++ b/drivers/cpufreq/cpufreq.c @@ -1386,6 +1386,20 @@ static struct syscore_ops cpufreq_syscore_ops = { .resume = cpufreq_bp_resume, }; +/** + * cpufreq_get_current_driver - return current driver's name + * + * Return the name string of the currently loaded cpufreq driver + * or NULL, if none. + */ +const char *cpufreq_get_current_driver(void) +{ + if (cpufreq_driver) + return cpufreq_driver->name; + + return NULL; +} +EXPORT_SYMBOL_GPL(cpufreq_get_current_driver); /********************************************************************* * NOTIFIER LISTS INTERFACE * diff --git a/include/linux/cpufreq.h b/include/linux/cpufreq.h index a55b88eaf96a..a018da2d2a7c 100644 --- a/include/linux/cpufreq.h +++ b/include/linux/cpufreq.h @@ -407,4 +407,5 @@ void cpufreq_frequency_table_get_attr(struct cpufreq_frequency_table *table, unsigned int cpu); void cpufreq_frequency_table_put_attr(unsigned int cpu); +extern const char *cpufreq_get_current_driver(void); #endif /* _LINUX_CPUFREQ_H */ -- 1.8.1.rc3
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