dm: clk: add missing stub when CONFIG_CLK is deactivated

Add missing stub for functions [devm_]clk_...() when CONFIG_CLK is
deactivated.

Signed-off-by: Dario Binacchi <dario.binacchi@amarulasolutions.com>
Reviewed-by: Sean Anderson <seanga2@gmail.com>
diff --git a/include/clk.h b/include/clk.h
index 76bb64b..407513e 100644
--- a/include/clk.h
+++ b/include/clk.h
@@ -88,8 +88,9 @@
 	unsigned int count;
 };
 
-#if CONFIG_IS_ENABLED(OF_CONTROL) && CONFIG_IS_ENABLED(CLK)
 struct phandle_1_arg;
+
+#if CONFIG_IS_ENABLED(OF_CONTROL) && CONFIG_IS_ENABLED(CLK)
 /**
  * clk_get_by_phandle() - Get a clock by its phandle information (of-platadata)
  * @dev: Device containing the phandle
@@ -258,12 +259,26 @@
 void devm_clk_put(struct udevice *dev, struct clk *clk);
 
 #else
+
+static inline int clk_get_by_phandle(struct udevice *dev, const
+				     struct phandle_1_arg *cells,
+				     struct clk *clk)
+{
+	return -ENOSYS;
+}
+
 static inline int clk_get_by_index(struct udevice *dev, int index,
 				   struct clk *clk)
 {
 	return -ENOSYS;
 }
 
+static inline int clk_get_by_index_nodev(ofnode node, int index,
+					 struct clk *clk)
+{
+	return -ENOSYS;
+}
+
 static inline int clk_get_bulk(struct udevice *dev, struct clk_bulk *bulk)
 {
 	return -ENOSYS;
@@ -275,6 +290,17 @@
 	return -ENOSYS;
 }
 
+static inline struct clk *devm_clk_get(struct udevice *dev, const char *id)
+{
+	return ERR_PTR(-ENOSYS);
+}
+
+static inline struct clk *devm_clk_get_optional(struct udevice *dev,
+						const char *id)
+{
+	return ERR_PTR(-ENOSYS);
+}
+
 static inline int
 clk_get_by_name_nodev(ofnode node, const char *name, struct clk *clk)
 {
@@ -285,6 +311,10 @@
 {
 	return -ENOSYS;
 }
+
+static inline void devm_clk_put(struct udevice *dev, struct clk *clk)
+{
+}
 #endif
 
 /**