diff --git a/drivers/gpu/drm/i915/display/intel_bios.c b/drivers/gpu/drm/i915/display/intel_bios.c
index 839124647202..4f1a72a90b8f 100644
--- a/drivers/gpu/drm/i915/display/intel_bios.c
+++ b/drivers/gpu/drm/i915/display/intel_bios.c
@@ -1619,30 +1619,18 @@ static u8 map_ddc_pin(struct drm_i915_private *dev_priv, u8 vbt_pin)
 	return 0;
 }
 
-static enum port dvo_port_to_port(u8 dvo_port)
+static enum port __dvo_port_to_port(int n_ports, int n_dvo,
+				    const int port_mapping[][3], u8 dvo_port)
 {
-	/*
-	 * Each DDI port can have more than one value on the "DVO Port" field,
-	 * so look for all the possible values for each port.
-	 */
-	static const int dvo_ports[][3] = {
-		[PORT_A] = { DVO_PORT_HDMIA, DVO_PORT_DPA, -1},
-		[PORT_B] = { DVO_PORT_HDMIB, DVO_PORT_DPB, -1},
-		[PORT_C] = { DVO_PORT_HDMIC, DVO_PORT_DPC, -1},
-		[PORT_D] = { DVO_PORT_HDMID, DVO_PORT_DPD, -1},
-		[PORT_E] = { DVO_PORT_CRT, DVO_PORT_HDMIE, DVO_PORT_DPE},
-		[PORT_F] = { DVO_PORT_HDMIF, DVO_PORT_DPF, -1},
-		[PORT_G] = { DVO_PORT_HDMIG, DVO_PORT_DPG, -1},
-	};
 	enum port port;
 	int i;
 
-	for (port = PORT_A; port < ARRAY_SIZE(dvo_ports); port++) {
-		for (i = 0; i < ARRAY_SIZE(dvo_ports[port]); i++) {
-			if (dvo_ports[port][i] == -1)
+	for (port = PORT_A; port < n_ports; port++) {
+		for (i = 0; i < n_dvo; i++) {
+			if (port_mapping[port][i] == -1)
 				break;
 
-			if (dvo_port == dvo_ports[port][i])
+			if (dvo_port == port_mapping[port][i])
 				return port;
 		}
 	}
@@ -1650,6 +1638,48 @@ static enum port dvo_port_to_port(u8 dvo_port)
 	return PORT_NONE;
 }
 
+static enum port dvo_port_to_port(struct drm_i915_private *dev_priv,
+				  u8 dvo_port)
+{
+	/*
+	 * Each DDI port can have more than one value on the "DVO Port" field,
+	 * so look for all the possible values for each port.
+	 */
+	static const int port_mapping[][3] = {
+		[PORT_A] = { DVO_PORT_HDMIA, DVO_PORT_DPA, -1 },
+		[PORT_B] = { DVO_PORT_HDMIB, DVO_PORT_DPB, -1 },
+		[PORT_C] = { DVO_PORT_HDMIC, DVO_PORT_DPC, -1 },
+		[PORT_D] = { DVO_PORT_HDMID, DVO_PORT_DPD, -1 },
+		[PORT_E] = { DVO_PORT_CRT, DVO_PORT_HDMIE, -1 },
+		[PORT_F] = { DVO_PORT_HDMIF, DVO_PORT_DPF, -1 },
+		[PORT_G] = { DVO_PORT_HDMIG, DVO_PORT_DPG, -1 },
+	};
+	/*
+	 * Bspec lists the ports as A, B, C, D - however internally in our
+	 * driver we keep them as PORT_A, PORT_B, PORT_D and PORT_E so the
+	 * registers in Display Engine match the right offsets. Apply the
+	 * mapping here to translate from VBT to internal convention.
+	 */
+	static const int rkl_port_mapping[][3] = {
+		[PORT_A] = { DVO_PORT_HDMIA, DVO_PORT_DPA, -1 },
+		[PORT_B] = { DVO_PORT_HDMIB, DVO_PORT_DPB, -1 },
+		[PORT_C] = { -1 },
+		[PORT_D] = { DVO_PORT_HDMIC, DVO_PORT_DPC, -1 },
+		[PORT_E] = { DVO_PORT_HDMID, DVO_PORT_DPD, -1 },
+	};
+
+	if (IS_ROCKETLAKE(dev_priv))
+		return __dvo_port_to_port(ARRAY_SIZE(rkl_port_mapping),
+					  ARRAY_SIZE(rkl_port_mapping[0]),
+					  rkl_port_mapping,
+					  dvo_port);
+	else
+		return __dvo_port_to_port(ARRAY_SIZE(port_mapping),
+					  ARRAY_SIZE(port_mapping[0]),
+					  port_mapping,
+					  dvo_port);
+}
+
 static void parse_ddi_port(struct drm_i915_private *dev_priv,
 			   struct display_device_data *devdata,
 			   u8 bdb_version)
@@ -1659,7 +1689,7 @@ static void parse_ddi_port(struct drm_i915_private *dev_priv,
 	bool is_dvi, is_hdmi, is_dp, is_edp, is_crt;
 	enum port port;
 
-	port = dvo_port_to_port(child->dvo_port);
+	port = dvo_port_to_port(dev_priv, child->dvo_port);
 	if (port == PORT_NONE)
 		return;
 
@@ -2603,10 +2633,10 @@ enum aux_ch intel_bios_port_aux_ch(struct drm_i915_private *dev_priv,
 		aux_ch = AUX_CH_B;
 		break;
 	case DP_AUX_C:
-		aux_ch = AUX_CH_C;
+		aux_ch = IS_ROCKETLAKE(dev_priv) ? AUX_CH_D : AUX_CH_C;
 		break;
 	case DP_AUX_D:
-		aux_ch = AUX_CH_D;
+		aux_ch = IS_ROCKETLAKE(dev_priv) ? AUX_CH_E : AUX_CH_D;
 		break;
 	case DP_AUX_E:
 		aux_ch = AUX_CH_E;