From: Borislav Petkov <b...@suse.de>
Add a helper function to return cpufreq_driver->name.
Signed-off-by: Borislav Petkov <b...@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
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majord...@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/
