diff --git a/drivers/gpu/drm/drm_dp_helper.c b/drivers/gpu/drm/drm_dp_helper.c
index 5890e0ba2eb969d1ef4abb8555d326f021faa8d5..404bc0ba94750c598b60e6729aa9bdd0d3b4e738 100644
--- a/drivers/gpu/drm/drm_dp_helper.c
+++ b/drivers/gpu/drm/drm_dp_helper.c
@@ -2859,3 +2859,42 @@ int drm_dp_pcon_hdmi_link_mode(struct drm_dp_aux *aux, u8 *frl_trained_mask)
 	return mode;
 }
 EXPORT_SYMBOL(drm_dp_pcon_hdmi_link_mode);
+
+/**
+ * drm_dp_pcon_hdmi_frl_link_error_count() - print the error count per lane
+ * during link failure between PCON and HDMI sink
+ * @aux: DisplayPort AUX channel
+ * @connector: DRM connector
+ * code.
+ **/
+
+void drm_dp_pcon_hdmi_frl_link_error_count(struct drm_dp_aux *aux,
+					   struct drm_connector *connector)
+{
+	u8 buf, error_count;
+	int i, num_error;
+	struct drm_hdmi_info *hdmi = &connector->display_info.hdmi;
+
+	for (i = 0; i < hdmi->max_lanes; i++) {
+		if (drm_dp_dpcd_readb(aux, DP_PCON_HDMI_ERROR_STATUS_LN0 + i, &buf) < 0)
+			return;
+
+		error_count = buf & DP_PCON_HDMI_ERROR_COUNT_MASK;
+		switch (error_count) {
+		case DP_PCON_HDMI_ERROR_COUNT_HUNDRED_PLUS:
+			num_error = 100;
+			break;
+		case DP_PCON_HDMI_ERROR_COUNT_TEN_PLUS:
+			num_error = 10;
+			break;
+		case DP_PCON_HDMI_ERROR_COUNT_THREE_PLUS:
+			num_error = 3;
+			break;
+		default:
+			num_error = 0;
+		}
+
+		DRM_ERROR("More than %d errors since the last read for lane %d", num_error, i);
+	}
+}
+EXPORT_SYMBOL(drm_dp_pcon_hdmi_frl_link_error_count);
diff --git a/include/drm/drm_dp_helper.h b/include/drm/drm_dp_helper.h
index c66f570eadc2e344e0ec212030e624f925979535..84ba30e4eeb3e99811d8bbf63d6b5425e71c471d 100644
--- a/include/drm/drm_dp_helper.h
+++ b/include/drm/drm_dp_helper.h
@@ -946,6 +946,11 @@ struct drm_device;
 # define DP_CEC_IRQ                          (1 << 2)
 
 #define DP_LINK_SERVICE_IRQ_VECTOR_ESI0     0x2005   /* 1.2 */
+# define RX_CAP_CHANGED                      (1 << 0)
+# define LINK_STATUS_CHANGED                 (1 << 1)
+# define STREAM_STATUS_CHANGED               (1 << 2)
+# define HDMI_LINK_STATUS_CHANGED            (1 << 3)
+# define CONNECTED_OFF_ENTRY_REQUESTED       (1 << 4)
 
 #define DP_PSR_ERROR_STATUS                 0x2006  /* XXX 1.2? */
 # define DP_PSR_LINK_CRC_ERROR              (1 << 0)
@@ -1120,6 +1125,16 @@ struct drm_device;
 #define DP_PROTOCOL_CONVERTER_CONTROL_2		0x3052 /* DP 1.3 */
 # define DP_CONVERSION_TO_YCBCR422_ENABLE	(1 << 0) /* DP 1.3 */
 
+/* PCON Downstream HDMI ERROR Status per Lane */
+#define DP_PCON_HDMI_ERROR_STATUS_LN0          0x3037
+#define DP_PCON_HDMI_ERROR_STATUS_LN1          0x3038
+#define DP_PCON_HDMI_ERROR_STATUS_LN2          0x3039
+#define DP_PCON_HDMI_ERROR_STATUS_LN3          0x303A
+# define DP_PCON_HDMI_ERROR_COUNT_MASK         (0x7 << 0)
+# define DP_PCON_HDMI_ERROR_COUNT_THREE_PLUS   (1 << 0)
+# define DP_PCON_HDMI_ERROR_COUNT_TEN_PLUS     (1 << 1)
+# define DP_PCON_HDMI_ERROR_COUNT_HUNDRED_PLUS (1 << 2)
+
 /* HDCP 1.3 and HDCP 2.2 */
 #define DP_AUX_HDCP_BKSV		0x68000
 #define DP_AUX_HDCP_RI_PRIME		0x68005
@@ -2036,5 +2051,7 @@ int drm_dp_pcon_frl_enable(struct drm_dp_aux *aux);
 
 bool drm_dp_pcon_hdmi_link_active(struct drm_dp_aux *aux);
 int drm_dp_pcon_hdmi_link_mode(struct drm_dp_aux *aux, u8 *frl_trained_mask);
+void drm_dp_pcon_hdmi_frl_link_error_count(struct drm_dp_aux *aux,
+					   struct drm_connector *connector);
 
 #endif /* _DRM_DP_HELPER_H_ */