diff --git a/drivers/clk/rockchip/regmap/clk-regmap-mux.c b/drivers/clk/rockchip/regmap/clk-regmap-mux.c
index 49d58b9c53ab..eb37b5f9503c 100644
--- a/drivers/clk/rockchip/regmap/clk-regmap-mux.c
+++ b/drivers/clk/rockchip/regmap/clk-regmap-mux.c
@@ -77,3 +77,5 @@ devm_clk_regmap_register_mux(struct device *dev, const char *name,
 	return devm_clk_register(dev, &mux->hw);
 }
 EXPORT_SYMBOL_GPL(devm_clk_regmap_register_mux);
+
+MODULE_LICENSE("GPL");