Merge 'clk-notify' into clk-next

* clk-notify:
  clk: Provide notifier stubs when !COMMON_CLK

include/linux/clk.h

@@ -20,8 +20,6 @@ struct device;
 
 struct clk;
 
-#ifdef CONFIG_COMMON_CLK
-
 /**
  * DOC: clk notifier callback types
  *
@@ -78,6 +76,8 @@ struct clk_notifier_data {
 	unsigned long		new_rate;
 };
 
+#ifdef CONFIG_COMMON_CLK
+
 /**
  * clk_notifier_register: register a clock rate-change notifier callback
  * @clk: clock whose rate we are interested in
@@ -140,6 +140,18 @@ bool clk_is_match(const struct clk *p, const struct clk *q);
 
 #else
 
+static inline int clk_notifier_register(struct clk *clk,
+					struct notifier_block *nb)
+{
+	return -ENOTSUPP;
+}
+
+static inline int clk_notifier_unregister(struct clk *clk,
+					  struct notifier_block *nb)
+{
+	return -ENOTSUPP;
+}
+
 static inline long clk_get_accuracy(struct clk *clk)
 {
 	return -ENOTSUPP;