drm/i915: Only skip connector output for disable_display

We want to add no connectors, encoders or crtcs if the display is
disabled, but we still need to hook up any existing HW so that we can
power it down.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Imre Deak <imre.deak@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20180815201207.2203-1-chris@chris-wilson.co.uk

drivers/gpu/drm/i915/intel_display.c

@@ -14128,6 +14128,9 @@ static void intel_setup_outputs(struct drm_i915_private *dev_priv)
 
 	intel_pps_init(dev_priv);
 
+	if (INTEL_INFO(dev_priv)->num_pipes == 0)
+		return;
+
 	/*
 	 * intel_edp_init_connector() depends on this completing first, to
 	 * prevent the registeration of both eDP and LVDS and the incorrect
@@ -15206,9 +15209,6 @@ int intel_modeset_init(struct drm_device *dev)
 
 	intel_init_pm(dev_priv);
 
-	if (INTEL_INFO(dev_priv)->num_pipes == 0)
-		return 0;
-
 	/*
 	 * There may be no VBT; and if the BIOS enabled SSC we can
 	 * just keep using it to avoid unnecessary flicker.  Whereas if the