X-Git-Url: http://demsky.eecs.uci.edu/git/?a=blobdiff_plain;f=include%2Flinux%2Fdevfreq.h;h=2f856650a74a00e7a91b96d870bdc76abd448570;hb=ee847a5bdf53aee4d2d65bec8bc3a92feeaf47f3;hp=68030e22af3527958ac39006031dd62388228091;hpb=dc5bc3f1e3d886ce1193281bb2bfb2b44f4aeae4;p=firefly-linux-kernel-4.4.55.git

diff --git a/include/linux/devfreq.h b/include/linux/devfreq.h
index 68030e22af35..2f856650a74a 100644
--- a/include/linux/devfreq.h
+++ b/include/linux/devfreq.h
@@ -208,6 +208,9 @@ extern int devm_devfreq_register_opp_notifier(struct device *dev,
 extern void devm_devfreq_unregister_opp_notifier(struct device *dev,
 						struct devfreq *devfreq);
 
+extern struct devfreq *devfreq_get_devfreq_by_phandle(struct device *dev,
+						int index);
+
 /**
  * devfreq_update_stats() - update the last_status pointer in struct devfreq
  * @df:		the devfreq instance whose status needs updating
@@ -307,6 +310,12 @@ static inline void devm_devfreq_unregister_opp_notifier(struct device *dev,
 {
 }
 
+static inline struct devfreq *devfreq_get_devfreq_by_phandle(struct device *dev,
+							int index)
+{
+	return ERR_PTR(-ENODEV);
+}
+
 static inline int devfreq_update_stats(struct devfreq *df)
 {
 	return -EINVAL;