diff --git a/include/dt-bindings/clock/rk3399-cru.h b/include/dt-bindings/clock/rk3399-cru.h
index ce5f3e99c5f292a5e24c5fd2156ad085cef0aab6..220a60f20d3ba5f272bce1d3b56db644e069038a 100644
--- a/include/dt-bindings/clock/rk3399-cru.h
+++ b/include/dt-bindings/clock/rk3399-cru.h
@@ -138,6 +138,8 @@
 #define DCLK_VOP0_DIV			182
 #define DCLK_VOP1_DIV			183
 #define DCLK_M0_PERILP			184
+#define DCLK_VOP0_FRAC			185
+#define DCLK_VOP1_FRAC			186
 
 #define FCLK_CM0S			190