cpufreq: Move dev_pm_opp_{init|free}_cpufreq_table() to pm_opp.h

Move the declaration of functions defined in the OPP core to pm_opp.h.
These were added to cpufreq.h as it was the only user of the APIs, but
that was a mistake perhaps. Fix it.

Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>

Author: vireshk

include/linux/cpufreq.h

@@ -694,26 +694,6 @@ 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
-
 /*
  * cpufreq_for_each_entry -	iterate over a cpufreq_frequency_table
  * @pos:	the cpufreq_frequency_table * to use as a loop cursor.

include/linux/pm_opp.h

@@ -16,6 +16,7 @@
 #include <linux/notifier.h>
 
 struct clk;
+struct cpufreq_frequency_table;
 struct regulator;
 struct dev_pm_opp;
 struct device;
@@ -446,6 +447,21 @@ static inline int dev_pm_opp_sync_regulators(struct device *dev)
 
 #endif		/* CONFIG_PM_OPP */
 
+#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
+
+
 #if defined(CONFIG_PM_OPP) && defined(CONFIG_OF)
 int dev_pm_opp_of_add_table(struct device *dev);
 int dev_pm_opp_of_add_table_indexed(struct device *dev, int index);