drm/i915: Don't allow HDCP on PORT E/F

Port E doesn't have HDCP support, and Port F is disabled. Don't setup
the hdcp shim on those.
Reviewed-by: NDaniel Vetter <daniel@ffwll.ch>
Signed-off-by: NSean Paul <seanpaul@chromium.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20180109185401.16911-1-seanpaul@chromium.org

drivers/gpu/drm/i915/intel_hdmi.c

@@ -2296,7 +2296,8 @@ void intel_hdmi_init_connector(struct intel_digital_port *intel_dig_port,
 
 	intel_hdmi_add_properties(intel_hdmi, connector);
 
-	if (INTEL_GEN(dev_priv) >= 9) {
+	/* PORT E doesn't have HDCP, and PORT F is disabled */
+	if (INTEL_GEN(dev_priv) >= 9 && port < PORT_E) {
 		int ret = intel_hdcp_init(intel_connector,
 					  &intel_hdmi_hdcp_shim);
 		if (ret)