diff --git a/drivers/clk/rockchip/clk_px30.c b/drivers/clk/rockchip/clk_px30.c
index 04d85b4..b5b46e3 100644
--- a/drivers/clk/rockchip/clk_px30.c
+++ b/drivers/clk/rockchip/clk_px30.c
@@ -17,6 +17,7 @@
 #include <asm/io.h>
 #include <dm/lists.h>
 #include <dt-bindings/clock/px30-cru.h>
+#include <linux/delay.h>
 
 DECLARE_GLOBAL_DATA_PTR;