diff --git a/drivers/gpu/drm/i915/display/intel_bios.c b/drivers/gpu/drm/i915/display/intel_bios.c
index ac0fc1993376..64eb11a45265 100644
--- a/drivers/gpu/drm/i915/display/intel_bios.c
+++ b/drivers/gpu/drm/i915/display/intel_bios.c
@@ -2677,8 +2677,9 @@ static void print_ddi_port(const struct intel_bios_encoder_data *devdata,
 	supports_tbt = intel_bios_encoder_supports_tbt(devdata);
 
 	drm_dbg_kms(&i915->drm,
-		    "Port %c VBT info: CRT:%d DVI:%d HDMI:%d DP:%d eDP:%d DSI:%d LSPCON:%d USB-Type-C:%d TBT:%d DSC:%d\n",
+		    "Port %c VBT info: CRT:%d DVI:%d HDMI:%d DP:%d eDP:%d DSI:%d DP++:%d LSPCON:%d USB-Type-C:%d TBT:%d DSC:%d\n",
 		    port_name(port), is_crt, is_dvi, is_hdmi, is_dp, is_edp, is_dsi,
+		    intel_bios_encoder_supports_dp_dual_mode(devdata),
 		    intel_bios_encoder_is_lspcon(devdata),
 		    supports_typec_usb, supports_tbt,
 		    devdata->dsc != NULL);
@@ -3426,7 +3427,7 @@ bool intel_bios_is_port_present(struct drm_i915_private *i915, enum port port)
 	return false;
 }
 
-static bool intel_bios_encoder_supports_dp_dual_mode(const struct intel_bios_encoder_data *devdata)
+bool intel_bios_encoder_supports_dp_dual_mode(const struct intel_bios_encoder_data *devdata)
 {
 	const struct child_device_config *child = &devdata->child;
 
@@ -3445,15 +3446,6 @@ static bool intel_bios_encoder_supports_dp_dual_mode(const struct intel_bios_enc
 	return false;
 }
 
-bool intel_bios_is_port_dp_dual_mode(struct drm_i915_private *i915,
-				     enum port port)
-{
-	const struct intel_bios_encoder_data *devdata =
-		intel_bios_encoder_data_lookup(i915, port);
-
-	return devdata && intel_bios_encoder_supports_dp_dual_mode(devdata);
-}
-
 /**
  * intel_bios_is_dsi_present - is DSI present in VBT
  * @i915:	i915 device instance
diff --git a/drivers/gpu/drm/i915/display/intel_bios.h b/drivers/gpu/drm/i915/display/intel_bios.h
index 8a0730c9b48c..45fae97d9719 100644
--- a/drivers/gpu/drm/i915/display/intel_bios.h
+++ b/drivers/gpu/drm/i915/display/intel_bios.h
@@ -247,7 +247,6 @@ bool intel_bios_is_tv_present(struct drm_i915_private *dev_priv);
 bool intel_bios_is_lvds_present(struct drm_i915_private *dev_priv, u8 *i2c_pin);
 bool intel_bios_is_port_present(struct drm_i915_private *dev_priv, enum port port);
 bool intel_bios_is_port_edp(struct drm_i915_private *dev_priv, enum port port);
-bool intel_bios_is_port_dp_dual_mode(struct drm_i915_private *dev_priv, enum port port);
 bool intel_bios_is_dsi_present(struct drm_i915_private *dev_priv, enum port *port);
 bool intel_bios_get_dsc_params(struct intel_encoder *encoder,
 			       struct intel_crtc_state *crtc_state,
@@ -264,6 +263,7 @@ bool intel_bios_encoder_supports_dp(const struct intel_bios_encoder_data *devdat
 bool intel_bios_encoder_supports_edp(const struct intel_bios_encoder_data *devdata);
 bool intel_bios_encoder_supports_typec_usb(const struct intel_bios_encoder_data *devdata);
 bool intel_bios_encoder_supports_tbt(const struct intel_bios_encoder_data *devdata);
+bool intel_bios_encoder_supports_dp_dual_mode(const struct intel_bios_encoder_data *devdata);
 bool intel_bios_encoder_is_lspcon(const struct intel_bios_encoder_data *devdata);
 bool intel_bios_encoder_lane_reversal(const struct intel_bios_encoder_data *devdata);
 bool intel_bios_encoder_hpd_invert(const struct intel_bios_encoder_data *devdata);
diff --git a/drivers/gpu/drm/i915/display/intel_hdmi.c b/drivers/gpu/drm/i915/display/intel_hdmi.c
index 61a2b63ab4d2..c2464f98c76e 100644
--- a/drivers/gpu/drm/i915/display/intel_hdmi.c
+++ b/drivers/gpu/drm/i915/display/intel_hdmi.c
@@ -2400,7 +2400,7 @@ intel_hdmi_dp_dual_mode_detect(struct drm_connector *connector)
 {
 	struct drm_i915_private *dev_priv = to_i915(connector->dev);
 	struct intel_hdmi *hdmi = intel_attached_hdmi(to_intel_connector(connector));
-	enum port port = hdmi_to_dig_port(hdmi)->base.port;
+	struct intel_encoder *encoder = &hdmi_to_dig_port(hdmi)->base;
 	struct i2c_adapter *adapter =
 		intel_gmbus_get_adapter(dev_priv, hdmi->ddc_bus);
 	enum drm_dp_dual_mode_type type = drm_dp_dual_mode_detect(&dev_priv->drm, adapter);
@@ -2416,7 +2416,7 @@ intel_hdmi_dp_dual_mode_detect(struct drm_connector *connector)
 	 */
 	if (type == DRM_DP_DUAL_MODE_UNKNOWN) {
 		if (!connector->force &&
-		    intel_bios_is_port_dp_dual_mode(dev_priv, port)) {
+		    intel_bios_encoder_supports_dp_dual_mode(encoder->devdata)) {
 			drm_dbg_kms(&dev_priv->drm,
 				    "Assuming DP dual mode adaptor presence based on VBT\n");
 			type = DRM_DP_DUAL_MODE_TYPE1_DVI;
@@ -2439,7 +2439,7 @@ intel_hdmi_dp_dual_mode_detect(struct drm_connector *connector)
 
 	/* Older VBTs are often buggy and can't be trusted :( Play it safe. */
 	if ((DISPLAY_VER(dev_priv) >= 8 || IS_HASWELL(dev_priv)) &&
-	    !intel_bios_is_port_dp_dual_mode(dev_priv, port)) {
+	    !intel_bios_encoder_supports_dp_dual_mode(encoder->devdata)) {
 		drm_dbg_kms(&dev_priv->drm,
 			    "Ignoring DP dual mode adaptor max TMDS clock for native HDMI port\n");
 		hdmi->dp_dual_mode.max_tmds_clock = 0;
