drm/i915: Flatten intel_edp_panel_vdd_on()

Less pointless indentation is always nice. There will be a bit more
code in this function once the power sequencer locking is fixed.
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Jani Nikula <jani.nikula@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>

drivers/gpu/drm/i915/intel_dp.c

@@ -1221,11 +1221,14 @@ static bool edp_panel_vdd_on(struct intel_dp *intel_dp)
 
 void intel_edp_panel_vdd_on(struct intel_dp *intel_dp)
 {
-	if (is_edp(intel_dp)) {
-		bool vdd = edp_panel_vdd_on(intel_dp);
+	bool vdd;
 
-		WARN(!vdd, "eDP VDD already requested on\n");
-	}
+	if (!is_edp(intel_dp))
+		return;
+
+	vdd = edp_panel_vdd_on(intel_dp);
+
+	WARN(!vdd, "eDP VDD already requested on\n");
 }
 
 static void edp_panel_vdd_off_sync(struct intel_dp *intel_dp)