diff --git a/drivers/video/rockchip/dw_mipi_dsi_rockchip.c b/drivers/video/rockchip/dw_mipi_dsi_rockchip.c
index 9ec3a48bf2a..a7c3ee09e1d 100644
--- a/drivers/video/rockchip/dw_mipi_dsi_rockchip.c
+++ b/drivers/video/rockchip/dw_mipi_dsi_rockchip.c
@@ -547,10 +547,10 @@ dw_mipi_dsi_get_lane_mbps(void *priv_data, struct display_timing *timings,
 		return bpp;
 	}
 
-	mpclk = DIV_ROUND_UP(timings->pixelclock.typ, 1000);
+	mpclk = DIV_ROUND_UP(timings->pixelclock.typ, 1000000);
 	if (mpclk) {
 		/* take 1 / 0.9, since mbps must big than bandwidth of RGB */
-		tmp = (mpclk * (bpp / lanes) * 10 / 9) / 1000;
+		tmp = (mpclk * (bpp / lanes) * 10 / 9);
 		if (tmp < max_mbps)
 			target_mbps = tmp;
 		else