diff --git a/drivers/gpu/drm/i915/display/intel_bios.c b/drivers/gpu/drm/i915/display/intel_bios.c
index 9785dfc2de0b..e67d9988dfbf 100644
--- a/drivers/gpu/drm/i915/display/intel_bios.c
+++ b/drivers/gpu/drm/i915/display/intel_bios.c
@@ -2873,7 +2873,9 @@ enum aux_ch intel_bios_port_aux_ch(struct drm_i915_private *i915,
 			aux_ch = AUX_CH_C;
 		break;
 	case DP_AUX_D:
-		if (IS_ALDERLAKE_S(i915))
+		if (DISPLAY_VER(i915) == 13)
+			aux_ch = AUX_CH_D_XELPD;
+		else if (IS_ALDERLAKE_S(i915))
 			aux_ch = AUX_CH_USBC3;
 		else if (IS_DG1(i915) || IS_ROCKETLAKE(i915))
 			aux_ch = AUX_CH_USBC2;
@@ -2881,22 +2883,36 @@ enum aux_ch intel_bios_port_aux_ch(struct drm_i915_private *i915,
 			aux_ch = AUX_CH_D;
 		break;
 	case DP_AUX_E:
-		if (IS_ALDERLAKE_S(i915))
+		if (DISPLAY_VER(i915) == 13)
+			aux_ch = AUX_CH_E_XELPD;
+		else if (IS_ALDERLAKE_S(i915))
 			aux_ch = AUX_CH_USBC4;
 		else
 			aux_ch = AUX_CH_E;
 		break;
 	case DP_AUX_F:
-		aux_ch = AUX_CH_F;
+		if (DISPLAY_VER(i915) == 13)
+			aux_ch = AUX_CH_USBC1;
+		else
+			aux_ch = AUX_CH_F;
 		break;
 	case DP_AUX_G:
-		aux_ch = AUX_CH_G;
+		if (DISPLAY_VER(i915) == 13)
+			aux_ch = AUX_CH_USBC2;
+		else
+			aux_ch = AUX_CH_G;
 		break;
 	case DP_AUX_H:
-		aux_ch = AUX_CH_H;
+		if (DISPLAY_VER(i915) == 13)
+			aux_ch = AUX_CH_USBC3;
+		else
+			aux_ch = AUX_CH_H;
 		break;
 	case DP_AUX_I:
-		aux_ch = AUX_CH_I;
+		if (DISPLAY_VER(i915) == 13)
+			aux_ch = AUX_CH_USBC4;
+		else
+			aux_ch = AUX_CH_I;
 		break;
 	default:
 		MISSING_CASE(info->alternate_aux_channel);
diff --git a/drivers/gpu/drm/i915/display/intel_ddi.c b/drivers/gpu/drm/i915/display/intel_ddi.c
index b7a2fce684c9..b0ea08136118 100644
--- a/drivers/gpu/drm/i915/display/intel_ddi.c
+++ b/drivers/gpu/drm/i915/display/intel_ddi.c
@@ -854,18 +854,19 @@ void intel_ddi_enable_pipe_clock(struct intel_encoder *encoder,
 {
 	struct intel_crtc *crtc = to_intel_crtc(crtc_state->uapi.crtc);
 	struct drm_i915_private *dev_priv = to_i915(crtc->base.dev);
-	enum port port = encoder->port;
 	enum transcoder cpu_transcoder = crtc_state->cpu_transcoder;
+	enum phy phy = intel_port_to_phy(dev_priv, encoder->port);
+	u32 val;
 
 	if (cpu_transcoder != TRANSCODER_EDP) {
-		if (DISPLAY_VER(dev_priv) >= 12)
-			intel_de_write(dev_priv,
-				       TRANS_CLK_SEL(cpu_transcoder),
-				       TGL_TRANS_CLK_SEL_PORT(port));
+		if (DISPLAY_VER(dev_priv) >= 13)
+			val = TGL_TRANS_CLK_SEL_PORT(phy);
+		else if (DISPLAY_VER(dev_priv) >= 12)
+			val = TGL_TRANS_CLK_SEL_PORT(encoder->port);
 		else
-			intel_de_write(dev_priv,
-				       TRANS_CLK_SEL(cpu_transcoder),
-				       TRANS_CLK_SEL_PORT(port));
+			val = TRANS_CLK_SEL_PORT(encoder->port);
+
+		intel_de_write(dev_priv, TRANS_CLK_SEL(cpu_transcoder), val);
 	}
 }
 
@@ -4356,6 +4357,17 @@ static bool hti_uses_phy(struct drm_i915_private *i915, enum phy phy)
 	       i915->hti_state & HDPORT_DDI_USED(phy);
 }
 
+static enum hpd_pin xelpd_hpd_pin(struct drm_i915_private *dev_priv,
+				  enum port port)
+{
+	if (port >= PORT_D_XELPD)
+		return HPD_PORT_D + port - PORT_D_XELPD;
+	else if (port >= PORT_TC1)
+		return HPD_PORT_TC1 + port - PORT_TC1;
+	else
+		return HPD_PORT_A + port - PORT_A;
+}
+
 static enum hpd_pin dg1_hpd_pin(struct drm_i915_private *dev_priv,
 				enum port port)
 {
@@ -4495,7 +4507,13 @@ void intel_ddi_init(struct drm_i915_private *dev_priv, enum port port)
 	encoder = &dig_port->base;
 	encoder->devdata = devdata;
 
-	if (DISPLAY_VER(dev_priv) >= 12) {
+	if (DISPLAY_VER(dev_priv) >= 13 && port >= PORT_D_XELPD) {
+		drm_encoder_init(&dev_priv->drm, &encoder->base, &intel_ddi_funcs,
+				 DRM_MODE_ENCODER_TMDS,
+				 "DDI %c/PHY %c",
+				 port_name(port - PORT_D_XELPD + PORT_D),
+				 phy_name(phy));
+	} else if (DISPLAY_VER(dev_priv) >= 12) {
 		enum tc_port tc_port = intel_port_to_tc(dev_priv, port);
 
 		drm_encoder_init(&dev_priv->drm, &encoder->base, &intel_ddi_funcs,
@@ -4606,7 +4624,9 @@ void intel_ddi_init(struct drm_i915_private *dev_priv, enum port port)
 		encoder->get_config = hsw_ddi_get_config;
 	}
 
-	if (IS_DG1(dev_priv))
+	if (DISPLAY_VER(dev_priv) >= 13)
+		encoder->hpd_pin = xelpd_hpd_pin(dev_priv, port);
+	else if (IS_DG1(dev_priv))
 		encoder->hpd_pin = dg1_hpd_pin(dev_priv, port);
 	else if (IS_ROCKETLAKE(dev_priv))
 		encoder->hpd_pin = rkl_hpd_pin(dev_priv, port);
diff --git a/drivers/gpu/drm/i915/display/intel_display.c b/drivers/gpu/drm/i915/display/intel_display.c
index 2cdc0b90faaa..bf8d1f401def 100644
--- a/drivers/gpu/drm/i915/display/intel_display.c
+++ b/drivers/gpu/drm/i915/display/intel_display.c
@@ -3681,7 +3681,11 @@ bool intel_phy_is_tc(struct drm_i915_private *dev_priv, enum phy phy)
 
 enum phy intel_port_to_phy(struct drm_i915_private *i915, enum port port)
 {
-	if (IS_ALDERLAKE_S(i915) && port >= PORT_TC1)
+	if (DISPLAY_VER(i915) >= 13 && port >= PORT_D_XELPD)
+		return PHY_D + port - PORT_D_XELPD;
+	else if (DISPLAY_VER(i915) >= 13 && port >= PORT_TC1)
+		return PHY_F + port - PORT_TC1;
+	else if (IS_ALDERLAKE_S(i915) && port >= PORT_TC1)
 		return PHY_B + port - PORT_TC1;
 	else if ((IS_DG1(i915) || IS_ROCKETLAKE(i915)) && port >= PORT_TC1)
 		return PHY_C + port - PORT_TC1;
diff --git a/drivers/gpu/drm/i915/display/intel_display.h b/drivers/gpu/drm/i915/display/intel_display.h
index e7764e746c6a..bd69affc791c 100644
--- a/drivers/gpu/drm/i915/display/intel_display.h
+++ b/drivers/gpu/drm/i915/display/intel_display.h
@@ -217,6 +217,10 @@ enum port {
 	PORT_TC5,
 	PORT_TC6,
 
+	/* XE_LPD repositions D/E offsets and bitfields */
+	PORT_D_XELPD = PORT_TC5,
+	PORT_E_XELPD,
+
 	I915_MAX_PORTS
 };
 
@@ -300,6 +304,10 @@ enum aux_ch {
 	AUX_CH_USBC4,
 	AUX_CH_USBC5,
 	AUX_CH_USBC6,
+
+	/* XE_LPD repositions D/E offsets and bitfields */
+	AUX_CH_D_XELPD = AUX_CH_USBC5,
+	AUX_CH_E_XELPD,
 };
 
 #define aux_ch_name(a) ((a) + 'A')
diff --git a/drivers/gpu/drm/i915/display/intel_dp_aux.c b/drivers/gpu/drm/i915/display/intel_dp_aux.c
index 805f6953c048..066760a2abb4 100644
--- a/drivers/gpu/drm/i915/display/intel_dp_aux.c
+++ b/drivers/gpu/drm/i915/display/intel_dp_aux.c
@@ -602,8 +602,8 @@ static i915_reg_t tgl_aux_ctl_reg(struct intel_dp *intel_dp)
 	case AUX_CH_USBC2:
 	case AUX_CH_USBC3:
 	case AUX_CH_USBC4:
-	case AUX_CH_USBC5:
-	case AUX_CH_USBC6:
+	case AUX_CH_USBC5:  /* aka AUX_CH_D_XELPD */
+	case AUX_CH_USBC6:  /* aka AUX_CH_E_XELPD */
 		return DP_AUX_CH_CTL(aux_ch);
 	default:
 		MISSING_CASE(aux_ch);
@@ -625,8 +625,8 @@ static i915_reg_t tgl_aux_data_reg(struct intel_dp *intel_dp, int index)
 	case AUX_CH_USBC2:
 	case AUX_CH_USBC3:
 	case AUX_CH_USBC4:
-	case AUX_CH_USBC5:
-	case AUX_CH_USBC6:
+	case AUX_CH_USBC5:  /* aka AUX_CH_D_XELPD */
+	case AUX_CH_USBC6:  /* aka AUX_CH_E_XELPD */
 		return DP_AUX_CH_DATA(aux_ch, index);
 	default:
 		MISSING_CASE(aux_ch);
@@ -680,7 +680,11 @@ void intel_dp_aux_init(struct intel_dp *intel_dp)
 	drm_dp_aux_init(&intel_dp->aux);
 
 	/* Failure to allocate our preferred name is not critical */
-	if (DISPLAY_VER(dev_priv) >= 12 && aux_ch >= AUX_CH_USBC1)
+	if (DISPLAY_VER(dev_priv) >= 13 && aux_ch >= AUX_CH_D_XELPD)
+		intel_dp->aux.name = kasprintf(GFP_KERNEL, "AUX %c/%s",
+					       aux_ch_name(aux_ch - AUX_CH_D_XELPD + AUX_CH_D),
+					       encoder->base.name);
+	else if (DISPLAY_VER(dev_priv) >= 12 && aux_ch >= AUX_CH_USBC1)
 		intel_dp->aux.name = kasprintf(GFP_KERNEL, "AUX USBC%c/%s",
 					       aux_ch - AUX_CH_USBC1 + '1',
 					       encoder->base.name);