struct intel_dp *intel_dp = container_of(mgr, struct intel_dp, mst_mgr);
        struct intel_digital_port *intel_dig_port = dp_to_dig_port(intel_dp);
        struct drm_device *dev = intel_dig_port->base.base.dev;
+       struct drm_i915_private *dev_priv = to_i915(dev);
        struct intel_connector *intel_connector;
        struct drm_connector *connector;
-       int i;
+       enum pipe pipe;
 
        intel_connector = intel_connector_alloc();
        if (!intel_connector)
        intel_connector->mst_port = intel_dp;
        intel_connector->port = port;
 
-       for (i = PIPE_A; i <= PIPE_C; i++) {
+       for_each_pipe(dev_priv, pipe) {
                drm_mode_connector_attach_encoder(&intel_connector->base,
-                                                 &intel_dp->mst_encoders[i]->base.base);
+                                                 &intel_dp->mst_encoders[pipe]->base.base);
        }
 
        drm_object_attach_property(&connector->base, dev->mode_config.path_property, 0);
 static bool
 intel_dp_create_fake_mst_encoders(struct intel_digital_port *intel_dig_port)
 {
-       int i;
        struct intel_dp *intel_dp = &intel_dig_port->dp;
+       struct drm_i915_private *dev_priv = to_i915(intel_dig_port->base.base.dev);
+       enum pipe pipe;
 
-       for (i = PIPE_A; i <= PIPE_C; i++)
-               intel_dp->mst_encoders[i] = intel_dp_create_fake_mst_encoder(intel_dig_port, i);
+       for_each_pipe(dev_priv, pipe)
+               intel_dp->mst_encoders[pipe] = intel_dp_create_fake_mst_encoder(intel_dig_port, pipe);
        return true;
 }