1 files changed, 50 insertions, 0 deletions

diff --git a/include/linux/cpufreq.h b/include/linux/cpufreq.h
index 5ae5100c1f24..3f458896d45c 100644
--- a/include/linux/cpufreq.h
+++ b/include/linux/cpufreq.h
@@ -110,6 +110,7 @@ struct cpufreq_policy {
         bool                    transition_ongoing; /* Tracks transition status */
         spinlock_t              transition_lock;
         wait_queue_head_t       transition_wait;
+        struct task_struct      *transition_task; /* Task which is doing the transition */
 };
 
 /* Only for ACPI */
@@ -468,6 +469,55 @@ struct cpufreq_frequency_table {
                                     * order */
 };
 
+#if defined(CONFIG_CPU_FREQ) && defined(CONFIG_PM_OPP)
+int dev_pm_opp_init_cpufreq_table(struct device *dev,
+                                  struct cpufreq_frequency_table **table);
+void dev_pm_opp_free_cpufreq_table(struct device *dev,
+                                   struct cpufreq_frequency_table **table);
+#else
+static inline int dev_pm_opp_init_cpufreq_table(struct device *dev,
+                                                struct cpufreq_frequency_table
+                                                **table)
+{
+        return -EINVAL;
+}
+
+static inline void dev_pm_opp_free_cpufreq_table(struct device *dev,
+                                                 struct cpufreq_frequency_table
+                                                 **table)
+{
+}
+#endif
+
+static inline bool cpufreq_next_valid(struct cpufreq_frequency_table **pos)
+{
+        while ((*pos)->frequency != CPUFREQ_TABLE_END)
+                if ((*pos)->frequency != CPUFREQ_ENTRY_INVALID)
+                        return true;
+                else
+                        (*pos)++;
+        return false;
+}
+
+/*
+ * cpufreq_for_each_entry -     iterate over a cpufreq_frequency_table
+ * @pos:        the cpufreq_frequency_table * to use as a loop cursor.
+ * @table:      the cpufreq_frequency_table * to iterate over.
+ */
+
+#define cpufreq_for_each_entry(pos, table)      \
+        for (pos = table; pos->frequency != CPUFREQ_TABLE_END; pos++)
+
+/*
+ * cpufreq_for_each_valid_entry -     iterate over a cpufreq_frequency_table
+ *      excluding CPUFREQ_ENTRY_INVALID frequencies.
+ * @pos:        the cpufreq_frequency_table * to use as a loop cursor.
+ * @table:      the cpufreq_frequency_table * to iterate over.
+ */
+
+#define cpufreq_for_each_valid_entry(pos, table)        \
+        for (pos = table; cpufreq_next_valid(&pos); pos++)
+
 int cpufreq_frequency_table_cpuinfo(struct cpufreq_policy *policy,
                                     struct cpufreq_frequency_table *table);