summaryrefslogtreecommitdiffstats
diff options
context:
space:
mode:
-rw-r--r--Documentation/power/opp.txt2
-rw-r--r--drivers/base/power/opp.c17
-rw-r--r--include/linux/opp.h8
3 files changed, 27 insertions, 0 deletions
diff --git a/Documentation/power/opp.txt b/Documentation/power/opp.txt
index 5ae70a12..3035d00 100644
--- a/Documentation/power/opp.txt
+++ b/Documentation/power/opp.txt
@@ -321,6 +321,8 @@ opp_init_cpufreq_table - cpufreq framework typically is initialized with
addition to CONFIG_PM as power management feature is required to
dynamically scale voltage and frequency in a system.
+opp_free_cpufreq_table - Free up the table allocated by opp_init_cpufreq_table
+
7. Data Structures
==================
Typically an SoC contains multiple voltage domains which are variable. Each
diff --git a/drivers/base/power/opp.c b/drivers/base/power/opp.c
index 56a6899..5cc1232 100644
--- a/drivers/base/power/opp.c
+++ b/drivers/base/power/opp.c
@@ -625,4 +625,21 @@ int opp_init_cpufreq_table(struct device *dev,
return 0;
}
+
+/**
+ * opp_free_cpufreq_table() - free the cpufreq table
+ * @dev: device for which we do this operation
+ * @table: table to free
+ *
+ * Free up the table allocated by opp_init_cpufreq_table
+ */
+void opp_free_cpufreq_table(struct device *dev,
+ struct cpufreq_frequency_table **table)
+{
+ if (!table)
+ return;
+
+ kfree(*table);
+ *table = NULL;
+}
#endif /* CONFIG_CPU_FREQ */
diff --git a/include/linux/opp.h b/include/linux/opp.h
index 5449945..7020e97 100644
--- a/include/linux/opp.h
+++ b/include/linux/opp.h
@@ -94,12 +94,20 @@ static inline int opp_disable(struct device *dev, unsigned long freq)
#if defined(CONFIG_CPU_FREQ) && defined(CONFIG_PM_OPP)
int opp_init_cpufreq_table(struct device *dev,
struct cpufreq_frequency_table **table);
+void opp_free_cpufreq_table(struct device *dev,
+ struct cpufreq_frequency_table **table);
#else
static inline int opp_init_cpufreq_table(struct device *dev,
struct cpufreq_frequency_table **table)
{
return -EINVAL;
}
+
+static inline
+void opp_free_cpufreq_table(struct device *dev,
+ struct cpufreq_frequency_table **table)
+{
+}
#endif /* CONFIG_CPU_FREQ */
#endif /* __LINUX_OPP_H__ */
OpenPOWER on IntegriCloud