diff --git a/drivers/clk/renesas/renesas-cpg-mssr.c b/drivers/clk/renesas/renesas-cpg-mssr.c
index 6ad684c..7c1222f 100644
--- a/drivers/clk/renesas/renesas-cpg-mssr.c
+++ b/drivers/clk/renesas/renesas-cpg-mssr.c
@@ -16,6 +16,7 @@
 #include <log.h>
 #include <wait_bit.h>
 #include <asm/io.h>
+#include <linux/bitops.h>
 
 #include <dt-bindings/clock/renesas-cpg-mssr.h>