diff --git a/drivers/gpu/drm/i915/display/intel_ddi.c b/drivers/gpu/drm/i915/display/intel_ddi.c
index 861aa94359cc..485a74ae0545 100644
--- a/drivers/gpu/drm/i915/display/intel_ddi.c
+++ b/drivers/gpu/drm/i915/display/intel_ddi.c
@@ -282,7 +282,7 @@ static void intel_ddi_init_dp_buf_reg(struct intel_encoder *encoder,
 
 	if (IS_ALDERLAKE_P(i915) && intel_phy_is_tc(i915, phy)) {
 		intel_dp->DP |= ddi_buf_phy_link_rate(crtc_state->port_clock);
-		if (dig_port->tc_mode != TC_PORT_TBT_ALT)
+		if (!intel_tc_port_in_tbt_alt_mode(dig_port))
 			intel_dp->DP |= DDI_BUF_CTL_TC_PHY_OWNERSHIP;
 	}
 }
@@ -856,8 +856,7 @@ static void intel_ddi_get_power_domains(struct intel_encoder *encoder,
 
 	dig_port = enc_to_dig_port(encoder);
 
-	if (!intel_phy_is_tc(dev_priv, phy) ||
-	    dig_port->tc_mode != TC_PORT_TBT_ALT) {
+	if (!intel_tc_port_in_tbt_alt_mode(dig_port)) {
 		drm_WARN_ON(&dev_priv->drm, dig_port->ddi_io_wakeref);
 		dig_port->ddi_io_wakeref = intel_display_power_get(dev_priv,
 								   dig_port->ddi_io_power_domain);
@@ -1271,7 +1270,7 @@ static void icl_mg_phy_ddi_vswing_sequence(struct intel_encoder *encoder,
 	int n_entries, ln;
 	u32 val;
 
-	if (enc_to_dig_port(encoder)->tc_mode == TC_PORT_TBT_ALT)
+	if (intel_tc_port_in_tbt_alt_mode(enc_to_dig_port(encoder)))
 		return;
 
 	ddi_translations = encoder->get_buf_trans(encoder, crtc_state, &n_entries);
@@ -1408,7 +1407,7 @@ tgl_dkl_phy_ddi_vswing_sequence(struct intel_encoder *encoder,
 	u32 val, dpcnt_mask, dpcnt_val;
 	int n_entries, ln;
 
-	if (enc_to_dig_port(encoder)->tc_mode == TC_PORT_TBT_ALT)
+	if (intel_tc_port_in_tbt_alt_mode(enc_to_dig_port(encoder)))
 		return;
 
 	ddi_translations = encoder->get_buf_trans(encoder, crtc_state, &n_entries);
@@ -2218,7 +2217,7 @@ icl_program_mg_dp_mode(struct intel_digital_port *dig_port,
 	u8 width;
 
 	if (!intel_phy_is_tc(dev_priv, phy) ||
-	    dig_port->tc_mode == TC_PORT_TBT_ALT)
+	    intel_tc_port_in_tbt_alt_mode(dig_port))
 		return;
 
 	if (DISPLAY_VER(dev_priv) >= 12) {
@@ -2243,7 +2242,7 @@ icl_program_mg_dp_mode(struct intel_digital_port *dig_port,
 	switch (pin_assignment) {
 	case 0x0:
 		drm_WARN_ON(&dev_priv->drm,
-			    dig_port->tc_mode != TC_PORT_LEGACY);
+			    !intel_tc_port_in_legacy_mode(dig_port));
 		if (width == 1) {
 			ln1 |= MG_DP_MODE_CFG_DP_X1_MODE;
 		} else {
@@ -2488,7 +2487,6 @@ static void tgl_ddi_pre_enable_dp(struct intel_atomic_state *state,
 {
 	struct intel_dp *intel_dp = enc_to_intel_dp(encoder);
 	struct drm_i915_private *dev_priv = to_i915(encoder->base.dev);
-	enum phy phy = intel_port_to_phy(dev_priv, encoder->port);
 	struct intel_digital_port *dig_port = enc_to_dig_port(encoder);
 	bool is_mst = intel_crtc_has_type(crtc_state, INTEL_OUTPUT_DP_MST);
 	int level = intel_ddi_dp_level(intel_dp);
@@ -2525,8 +2523,7 @@ static void tgl_ddi_pre_enable_dp(struct intel_atomic_state *state,
 	intel_ddi_enable_clock(encoder, crtc_state);
 
 	/* 5. If IO power is controlled through PWR_WELL_CTL, Enable IO Power */
-	if (!intel_phy_is_tc(dev_priv, phy) ||
-	    dig_port->tc_mode != TC_PORT_TBT_ALT) {
+	if (!intel_tc_port_in_tbt_alt_mode(dig_port)) {
 		drm_WARN_ON(&dev_priv->drm, dig_port->ddi_io_wakeref);
 		dig_port->ddi_io_wakeref = intel_display_power_get(dev_priv,
 								   dig_port->ddi_io_power_domain);
@@ -2631,7 +2628,6 @@ static void hsw_ddi_pre_enable_dp(struct intel_atomic_state *state,
 	struct intel_dp *intel_dp = enc_to_intel_dp(encoder);
 	struct drm_i915_private *dev_priv = to_i915(encoder->base.dev);
 	enum port port = encoder->port;
-	enum phy phy = intel_port_to_phy(dev_priv, port);
 	struct intel_digital_port *dig_port = enc_to_dig_port(encoder);
 	bool is_mst = intel_crtc_has_type(crtc_state, INTEL_OUTPUT_DP_MST);
 	int level = intel_ddi_dp_level(intel_dp);
@@ -2650,8 +2646,7 @@ static void hsw_ddi_pre_enable_dp(struct intel_atomic_state *state,
 
 	intel_ddi_enable_clock(encoder, crtc_state);
 
-	if (!intel_phy_is_tc(dev_priv, phy) ||
-	    dig_port->tc_mode != TC_PORT_TBT_ALT) {
+	if (!intel_tc_port_in_tbt_alt_mode(dig_port)) {
 		drm_WARN_ON(&dev_priv->drm, dig_port->ddi_io_wakeref);
 		dig_port->ddi_io_wakeref = intel_display_power_get(dev_priv,
 								   dig_port->ddi_io_power_domain);
@@ -2820,7 +2815,6 @@ static void intel_ddi_post_disable_dp(struct intel_atomic_state *state,
 	struct intel_dp *intel_dp = &dig_port->dp;
 	bool is_mst = intel_crtc_has_type(old_crtc_state,
 					  INTEL_OUTPUT_DP_MST);
-	enum phy phy = intel_port_to_phy(dev_priv, encoder->port);
 
 	if (!is_mst)
 		intel_dp_set_infoframes(encoder, false,
@@ -2863,8 +2857,7 @@ static void intel_ddi_post_disable_dp(struct intel_atomic_state *state,
 	intel_pps_vdd_on(intel_dp);
 	intel_pps_off(intel_dp);
 
-	if (!intel_phy_is_tc(dev_priv, phy) ||
-	    dig_port->tc_mode != TC_PORT_TBT_ALT)
+	if (!intel_tc_port_in_tbt_alt_mode(dig_port))
 		intel_display_power_put(dev_priv,
 					dig_port->ddi_io_power_domain,
 					fetch_and_zero(&dig_port->ddi_io_wakeref));
@@ -3341,7 +3334,7 @@ intel_ddi_pre_pll_enable(struct intel_atomic_state *state,
 						intel_ddi_main_link_aux_domain(dig_port));
 	}
 
-	if (is_tc_port && dig_port->tc_mode != TC_PORT_TBT_ALT)
+	if (is_tc_port && !intel_tc_port_in_tbt_alt_mode(dig_port))
 		/*
 		 * Program the lane count for static/dynamic connections on
 		 * Type-C ports.  Skip this step for TBT.
diff --git a/drivers/gpu/drm/i915/display/intel_display.c b/drivers/gpu/drm/i915/display/intel_display.c
index fcbcaf61b8e6..fc4fdfda61e5 100644
--- a/drivers/gpu/drm/i915/display/intel_display.c
+++ b/drivers/gpu/drm/i915/display/intel_display.c
@@ -3811,11 +3811,7 @@ enum intel_display_power_domain intel_port_to_power_domain(enum port port)
 enum intel_display_power_domain
 intel_aux_power_domain(struct intel_digital_port *dig_port)
 {
-	struct drm_i915_private *dev_priv = to_i915(dig_port->base.base.dev);
-	enum phy phy = intel_port_to_phy(dev_priv, dig_port->base.port);
-
-	if (intel_phy_is_tc(dev_priv, phy) &&
-	    dig_port->tc_mode == TC_PORT_TBT_ALT) {
+	if (intel_tc_port_in_tbt_alt_mode(dig_port)) {
 		switch (dig_port->aux_ch) {
 		case AUX_CH_C:
 			return POWER_DOMAIN_AUX_C_TBT;
diff --git a/drivers/gpu/drm/i915/display/intel_display_power.c b/drivers/gpu/drm/i915/display/intel_display_power.c
index 7f77f53e7de9..00a50dba3380 100644
--- a/drivers/gpu/drm/i915/display/intel_display_power.c
+++ b/drivers/gpu/drm/i915/display/intel_display_power.c
@@ -557,7 +557,7 @@ static void icl_tc_port_assert_ref_held(struct drm_i915_private *dev_priv,
 	if (drm_WARN_ON(&dev_priv->drm, !dig_port))
 		return;
 
-	if (DISPLAY_VER(dev_priv) == 11 && dig_port->tc_legacy_port)
+	if (DISPLAY_VER(dev_priv) == 11 && intel_tc_cold_requires_aux_pw(dig_port))
 		return;
 
 	drm_WARN_ON(&dev_priv->drm, !intel_tc_port_ref_held(dig_port));
@@ -626,7 +626,7 @@ icl_tc_phy_aux_power_well_enable(struct drm_i915_private *dev_priv,
 	 * exit sequence.
 	 */
 	timeout_expected = is_tbt || intel_tc_cold_requires_aux_pw(dig_port);
-	if (DISPLAY_VER(dev_priv) == 11 && dig_port->tc_legacy_port)
+	if (DISPLAY_VER(dev_priv) == 11 && intel_tc_cold_requires_aux_pw(dig_port))
 		icl_tc_cold_exit(dev_priv);
 
 	hsw_wait_for_power_well_enable(dev_priv, power_well, timeout_expected);
diff --git a/drivers/gpu/drm/i915/display/intel_dp_aux.c b/drivers/gpu/drm/i915/display/intel_dp_aux.c
index 7c048d2ecf43..eddf6ec432bb 100644
--- a/drivers/gpu/drm/i915/display/intel_dp_aux.c
+++ b/drivers/gpu/drm/i915/display/intel_dp_aux.c
@@ -150,9 +150,6 @@ static u32 skl_get_aux_send_ctl(struct intel_dp *intel_dp,
 				u32 unused)
 {
 	struct intel_digital_port *dig_port = dp_to_dig_port(intel_dp);
-	struct drm_i915_private *i915 =
-			to_i915(dig_port->base.base.dev);
-	enum phy phy = intel_port_to_phy(i915, dig_port->base.port);
 	u32 ret;
 
 	/*
@@ -171,8 +168,7 @@ static u32 skl_get_aux_send_ctl(struct intel_dp *intel_dp,
 	      DP_AUX_CH_CTL_FW_SYNC_PULSE_SKL(32) |
 	      DP_AUX_CH_CTL_SYNC_PULSE_SKL(32);
 
-	if (intel_phy_is_tc(i915, phy) &&
-	    dig_port->tc_mode == TC_PORT_TBT_ALT)
+	if (intel_tc_port_in_tbt_alt_mode(dig_port))
 		ret |= DP_AUX_CH_CTL_TBT_IO;
 
 	return ret;
diff --git a/drivers/gpu/drm/i915/display/intel_dpll_mgr.c b/drivers/gpu/drm/i915/display/intel_dpll_mgr.c
index 882bfd499e55..ceea110b6915 100644
--- a/drivers/gpu/drm/i915/display/intel_dpll_mgr.c
+++ b/drivers/gpu/drm/i915/display/intel_dpll_mgr.c
@@ -26,6 +26,7 @@
 #include "intel_dpio_phy.h"
 #include "intel_dpll.h"
 #include "intel_dpll_mgr.h"
+#include "intel_tc.h"
 
 /**
  * DOC: Display PLLs
@@ -3532,8 +3533,8 @@ static void icl_update_active_dpll(struct intel_atomic_state *state,
 		enc_to_dig_port(encoder);
 
 	if (primary_port &&
-	    (primary_port->tc_mode == TC_PORT_DP_ALT ||
-	     primary_port->tc_mode == TC_PORT_LEGACY))
+	    (intel_tc_port_in_dp_alt_mode(primary_port) ||
+	     intel_tc_port_in_legacy_mode(primary_port)))
 		port_dpll_id = ICL_PORT_DPLL_MG_PHY;
 
 	icl_set_active_port_dpll(crtc_state, port_dpll_id);
diff --git a/drivers/gpu/drm/i915/display/intel_tc.c b/drivers/gpu/drm/i915/display/intel_tc.c
index 4e5ff823a3a3..f9242056693e 100644
--- a/drivers/gpu/drm/i915/display/intel_tc.c
+++ b/drivers/gpu/drm/i915/display/intel_tc.c
@@ -23,6 +23,30 @@ static const char *tc_port_mode_name(enum tc_port_mode mode)
 	return names[mode];
 }
 
+static bool intel_tc_port_in_mode(struct intel_digital_port *dig_port,
+				  enum tc_port_mode mode)
+{
+	struct drm_i915_private *i915 = to_i915(dig_port->base.base.dev);
+	enum phy phy = intel_port_to_phy(i915, dig_port->base.port);
+
+	return intel_phy_is_tc(i915, phy) && dig_port->tc_mode == mode;
+}
+
+bool intel_tc_port_in_tbt_alt_mode(struct intel_digital_port *dig_port)
+{
+	return intel_tc_port_in_mode(dig_port, TC_PORT_TBT_ALT);
+}
+
+bool intel_tc_port_in_dp_alt_mode(struct intel_digital_port *dig_port)
+{
+	return intel_tc_port_in_mode(dig_port, TC_PORT_DP_ALT);
+}
+
+bool intel_tc_port_in_legacy_mode(struct intel_digital_port *dig_port)
+{
+	return intel_tc_port_in_mode(dig_port, TC_PORT_LEGACY);
+}
+
 static enum intel_display_power_domain
 tc_cold_get_power_domain(struct intel_digital_port *dig_port)
 {
diff --git a/drivers/gpu/drm/i915/display/intel_tc.h b/drivers/gpu/drm/i915/display/intel_tc.h
index 0c881f645e27..0fdcddb4fc87 100644
--- a/drivers/gpu/drm/i915/display/intel_tc.h
+++ b/drivers/gpu/drm/i915/display/intel_tc.h
@@ -12,6 +12,10 @@
 struct intel_digital_port;
 struct intel_encoder;
 
+bool intel_tc_port_in_tbt_alt_mode(struct intel_digital_port *dig_port);
+bool intel_tc_port_in_dp_alt_mode(struct intel_digital_port *dig_port);
+bool intel_tc_port_in_legacy_mode(struct intel_digital_port *dig_port);
+
 bool intel_tc_port_connected(struct intel_encoder *encoder);
 void intel_tc_port_disconnect_phy(struct intel_digital_port *dig_port);
 
