diff --git a/drivers/clk/mmp/clk-frac.c b/drivers/clk/mmp/clk-frac.c
index eeba52c2def6..584a9927993b 100644
--- a/drivers/clk/mmp/clk-frac.c
+++ b/drivers/clk/mmp/clk-frac.c
@@ -110,7 +110,7 @@ static int clk_factor_set_rate(struct clk_hw *hw, unsigned long drate,
 	return 0;
 }
 
-void clk_factor_init(struct clk_hw *hw)
+static void clk_factor_init(struct clk_hw *hw)
 {
 	struct mmp_clk_factor *factor = to_clk_factor(hw);
 	struct mmp_clk_factor_masks *masks = factor->masks;