drm/i915/fbc: move the intel_fbc_can_choose() call out of the loop

We can just call it earlier, so do it. The goal of the loop is to get
the plane's CRTC state, and we don't need it in order to call
intel_fbc_can_choose().

Signed-off-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Link: http://patchwork.freedesktop.org/patch/msgid/1478883461-20201-2-git-send-email-paulo.r.zanoni@intel.com

drivers/gpu/drm/i915/intel_fbc.c

@@ -1096,6 +1096,9 @@ void intel_fbc_choose_crtc(struct drm_i915_private *dev_priv,
 		if (!intel_plane_state->base.visible)
 			continue;
 
+		if (!intel_fbc_can_choose(to_intel_crtc(plane_state->crtc)))
+			continue;
+
 		for_each_crtc_in_state(state, crtc, crtc_state, j) {
 			struct intel_crtc_state *intel_crtc_state =
 				to_intel_crtc_state(crtc_state);
@@ -1103,9 +1106,6 @@ void intel_fbc_choose_crtc(struct drm_i915_private *dev_priv,
 			if (plane_state->crtc != crtc)
 				continue;
 
-			if (!intel_fbc_can_choose(to_intel_crtc(crtc)))
-				break;
-
 			intel_crtc_state->enable_fbc = true;
 			goto out;
 		}