diff --git a/drivers/gpu/drm/i915/display/intel_ddi.c b/drivers/gpu/drm/i915/display/intel_ddi.c
index 442cd3997109afb1785985af067593c271298d11..c16fa789a931c8f3d270dfa9ec76cb4f8e61c351 100644
--- a/drivers/gpu/drm/i915/display/intel_ddi.c
+++ b/drivers/gpu/drm/i915/display/intel_ddi.c
@@ -3124,7 +3124,10 @@ static void intel_ddi_pre_enable_dp(struct intel_encoder *encoder,
 
 	intel_ddi_clk_select(encoder, crtc_state);
 
-	intel_display_power_get(dev_priv, dig_port->ddi_io_power_domain);
+	if (!intel_port_is_tc(dev_priv, port) ||
+	    dig_port->tc_mode != TC_PORT_TBT_ALT)
+		intel_display_power_get(dev_priv,
+					dig_port->ddi_io_power_domain);
 
 	icl_program_mg_dp_mode(dig_port);
 	icl_disable_phy_clock_gating(dig_port);
@@ -3306,8 +3309,10 @@ static void intel_ddi_post_disable_dp(struct intel_encoder *encoder,
 	intel_edp_panel_vdd_on(intel_dp);
 	intel_edp_panel_off(intel_dp);
 
-	intel_display_power_put_unchecked(dev_priv,
-					  dig_port->ddi_io_power_domain);
+	if (!intel_port_is_tc(dev_priv, encoder->port) ||
+	    dig_port->tc_mode != TC_PORT_TBT_ALT)
+		intel_display_power_put_unchecked(dev_priv,
+						  dig_port->ddi_io_power_domain);
 
 	intel_ddi_clk_disable(encoder);
 }