diff --git a/include/dt-bindings/pinctrl/rockchip.h b/include/dt-bindings/pinctrl/rockchip.h
index 5f291045e8fd..a0726f1d6213 100644
--- a/include/dt-bindings/pinctrl/rockchip.h
+++ b/include/dt-bindings/pinctrl/rockchip.h
@@ -42,6 +42,8 @@
 #define RK_PD6		30
 #define RK_PD7		31
 
+#define RK_PIN_TO_BIT(pin)	(1 << (pin))
+
 #define RK_FUNC_GPIO	0
 
 #endif