diff --git a/msm/dsi/dsi_panel.c b/msm/dsi/dsi_panel.c
index e5de6bfd2272..3830a7eb8aa4 100644
--- a/msm/dsi/dsi_panel.c
+++ b/msm/dsi/dsi_panel.c
@@ -1,6 +1,6 @@
 // SPDX-License-Identifier: GPL-2.0-only
 /*
- * Copyright (c) 2016-2020, The Linux Foundation. All rights reserved.
+ * Copyright (c) 2016-2021, The Linux Foundation. All rights reserved.
  */
 
 #include <linux/delay.h>
@@ -3874,13 +3874,18 @@ 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 min_threshold_us, prefill_time_us, max_transfer_us;
+	u32 min_threshold_us, prefill_time_us, max_transfer_us, packet_overhead;
 	u16 bpp;
 
-	/* Packet overlead in bits,2 bytes header + 2 bytes checksum
-	 * + 1 byte dcs data command.
+	/* Packet overhead in bits,
+	 * DPHY: 4 bytes header + 2 bytes checksum + 1 byte dcs data command.
+	 * CPHY: 8 bytes header + 4 bytes checksum + 2 bytes SYNC +
+	 * 1 byte dcs data command.
 	*/
-	const u32 packet_overhead = 56;
+	if (config->phy_type & DSI_PHY_TYPE_CPHY)
+		packet_overhead = 120;
+	else
+		packet_overhead = 56;
 
 	display_mode = container_of(timing, struct dsi_display_mode, timing);