diff --git a/drivers/clk/samsung/clk.c b/drivers/clk/samsung/clk.c
index 3a50d4f..cd3c40ab 100644
--- a/drivers/clk/samsung/clk.c
+++ b/drivers/clk/samsung/clk.c
@@ -284,6 +284,7 @@
  * obtain the clock speed of all external fixed clock sources from device
  * tree and register it
  */
+#ifdef CONFIG_OF
 void __init samsung_clk_of_register_fixed_ext(
 			struct samsung_fixed_rate_clock *fixed_rate_clk,
 			unsigned int nr_fixed_rate_clk,
@@ -300,6 +301,7 @@
 	}
 	samsung_clk_register_fixed_rate(fixed_rate_clk, nr_fixed_rate_clk);
 }
+#endif
 
 /* utility function to get the rate of a specified clock */
 unsigned long _get_rate(const char *clk_name)