diff --git a/drivers/video/rockchip/transmitter/rk32_lvds.c b/drivers/video/rockchip/transmitter/rk32_lvds.c
index 120c5dbb609d..c90abdd49cae 100755
--- a/drivers/video/rockchip/transmitter/rk32_lvds.c
+++ b/drivers/video/rockchip/transmitter/rk32_lvds.c
@@ -86,7 +86,7 @@ static int rk32_lvds_en(void)
 
 	val |= (screen->pin_dclk << 8) | (screen->pin_hsync << 9) |
 		(screen->pin_den << 10);
-	val |= (val << 16);
+	val |= (0xffff << 16);
 	grf_writel(val, RK3288_GRF_SOC_CON7);
 
 	if (screen->type == SCREEN_RGB) {