diff --git a/msm/dsi/dsi_panel.c b/msm/dsi/dsi_panel.c
index 39eb8ee5d3..e4143a5152 100644
--- a/msm/dsi/dsi_panel.c
+++ b/msm/dsi/dsi_panel.c
@@ -4014,6 +4014,7 @@ void dsi_panel_calc_dsi_transfer_time(struct dsi_host_common_cfg *config,
 	struct dsi_mode_info *timing = &mode->timing;
 	struct dsi_display_mode *display_mode;
 	u32 jitter_numer, jitter_denom, prefill_lines;
+	u32 default_prefill_lines, actual_prefill_lines, vtotal;
 	u32 min_threshold_us, prefill_time_us, max_transfer_us, packet_overhead;
 	u16 bpp;
 
@@ -4077,11 +4078,15 @@ void dsi_panel_calc_dsi_transfer_time(struct dsi_host_common_cfg *config,
 	 * Increase the prefill_lines proportionately as recommended
 	 * 40lines for 60fps, 60 for 90fps, 120lines for 120fps, and so on.
 	 */
-	prefill_lines = mult_frac(MIN_PREFILL_LINES,
-			timing->refresh_rate, 60);
+	default_prefill_lines = mult_frac(MIN_PREFILL_LINES, timing->refresh_rate, 60);
 
-	prefill_time_us = mult_frac(frame_time_us, prefill_lines,
-			(timing->v_active));
+	actual_prefill_lines = timing->v_back_porch + timing->v_front_porch + timing->v_sync_width;
+	vtotal = actual_prefill_lines + timing->v_active;
+
+	/* consider the max of default prefill lines and actual prefill lines */
+	prefill_lines = max(actual_prefill_lines, default_prefill_lines);
+
+	prefill_time_us = mult_frac(frame_time_us, prefill_lines, vtotal);
 
 	min_threshold_us = min_threshold_us + prefill_time_us;