diff --git a/drivers/video/display/screen/screen.h b/drivers/video/display/screen/screen.h
index c5682c3d56e6..761992aa0769 100755
--- a/drivers/video/display/screen/screen.h
+++ b/drivers/video/display/screen/screen.h
@@ -77,10 +77,10 @@ struct rk29fb_screen {
 
     /* Operation function*/
     int (*init)(void);
-    int (*standby)(u32 enable);
-    int (*refresh)(u32 arg);
-    int (*scandir)(u32 dir);
-    int (*disparea)(u32 area);
+    int (*standby)(u8 enable);
+    int (*refresh)(u8 arg);
+    int (*scandir)(u16 dir);
+    int (*disparea)(u8 area);
 
 };