}
}
+static bool need_aux_ch(struct intel_encoder *encoder, bool init_dp)
+{
+ struct drm_i915_private *i915 = to_i915(encoder->base.dev);
+ enum phy phy = intel_port_to_phy(i915, encoder->port);
+
+ return init_dp || intel_phy_is_tc(i915, phy);
+}
+
void intel_ddi_init(struct drm_i915_private *dev_priv, enum port port)
{
struct intel_digital_port *dig_port;
dig_port->dp.output_reg = INVALID_MMIO_REG;
dig_port->max_lanes = intel_ddi_max_lanes(dig_port);
- dig_port->aux_ch = intel_dp_aux_ch(encoder);
+
+ if (need_aux_ch(encoder, init_dp))
+ dig_port->aux_ch = intel_dp_aux_ch(encoder);
if (intel_phy_is_tc(dev_priv, phy)) {
bool is_legacy =