diff --git a/drivers/gpu/drm/bridge/synopsys/dw-mipi-dsi.c b/drivers/gpu/drm/bridge/synopsys/dw-mipi-dsi.c
index 40d699428b1b..b21ad4ea9dca 100644
--- a/drivers/gpu/drm/bridge/synopsys/dw-mipi-dsi.c
+++ b/drivers/gpu/drm/bridge/synopsys/dw-mipi-dsi.c
@@ -12,6 +12,7 @@
 #include <linux/component.h>
 #include <linux/debugfs.h>
 #include <linux/iopoll.h>
+#include <linux/math64.h>
 #include <linux/media-bus-format.h>
 #include <linux/module.h>
 #include <linux/platform_device.h>
@@ -764,8 +765,15 @@ static u32 dw_mipi_dsi_get_hcomponent_lbcc(struct dw_mipi_dsi *dsi,
 					   u32 hcomponent)
 {
 	u32 frac, lbcc;
+	int bpp;
 
-	lbcc = hcomponent * dsi->lane_mbps * MSEC_PER_SEC / 8;
+	bpp = mipi_dsi_pixel_format_to_bpp(dsi->format);
+	if (bpp < 0) {
+		dev_err(dsi->dev, "failed to get bpp\n");
+		return 0;
+	}
+
+	lbcc = div_u64((u64)hcomponent * mode->clock * bpp, dsi->lanes * 8);
 
 	frac = lbcc % mode->clock;
 	lbcc = lbcc / mode->clock;