drm/nouveau/kms/nv50-: create heads after outps/conns

- output info will be used later to determine MST support
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
Reviewed-by: Lyude Paul <lyude@redhat.com>
Acked-by: Danilo Krummrich <me@dakr.org>
Signed-off-by: Lyude Paul <lyude@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230919220442.202488-41-lyude@redhat.com

drivers/gpu/drm/nouveau/dispnv50/disp.c

@@ -2774,38 +2774,6 @@ nv50_display_create(struct drm_device *dev)
 		dev->mode_config.cursor_height = 64;
 	}
 
-	/* create crtc objects to represent the hw heads */
-	for_each_set_bit(i, &disp->disp->head_mask, sizeof(disp->disp->head_mask) * 8) {
-		struct nv50_head *head;
-
-		head = nv50_head_create(dev, i);
-		if (IS_ERR(head)) {
-			ret = PTR_ERR(head);
-			goto out;
-		}
-
-		if (has_mst) {
-			head->msto = nv50_msto_new(dev, head, i);
-			if (IS_ERR(head->msto)) {
-				ret = PTR_ERR(head->msto);
-				head->msto = NULL;
-				goto out;
-			}
-
-			/*
-			 * FIXME: This is a hack to workaround the following
-			 * issues:
-			 *
-			 * https://gitlab.gnome.org/GNOME/mutter/issues/759
-			 * https://gitlab.freedesktop.org/xorg/xserver/merge_requests/277
-			 *
-			 * Once these issues are closed, this should be
-			 * removed
-			 */
-			head->msto->encoder.possible_crtcs = disp->disp->head_mask;
-		}
-	}
-
 	/* create encoder/connector objects based on VBIOS DCB table */
 	for (i = 0, dcbe = &dcb->entry[0]; i < dcb->entries; i++, dcbe++) {
 		struct nouveau_encoder *outp;
@@ -2868,6 +2836,38 @@ nv50_display_create(struct drm_device *dev)
 		connector->funcs->destroy(connector);
 	}
 
+	/* create crtc objects to represent the hw heads */
+	for_each_set_bit(i, &disp->disp->head_mask, sizeof(disp->disp->head_mask) * 8) {
+		struct nv50_head *head;
+
+		head = nv50_head_create(dev, i);
+		if (IS_ERR(head)) {
+			ret = PTR_ERR(head);
+			goto out;
+		}
+
+		if (has_mst) {
+			head->msto = nv50_msto_new(dev, head, i);
+			if (IS_ERR(head->msto)) {
+				ret = PTR_ERR(head->msto);
+				head->msto = NULL;
+				goto out;
+			}
+
+			/*
+			 * FIXME: This is a hack to workaround the following
+			 * issues:
+			 *
+			 * https://gitlab.gnome.org/GNOME/mutter/issues/759
+			 * https://gitlab.freedesktop.org/xorg/xserver/merge_requests/277
+			 *
+			 * Once these issues are closed, this should be
+			 * removed
+			 */
+			head->msto->encoder.possible_crtcs = disp->disp->head_mask;
+		}
+	}
+
 	/* Disable vblank irqs aggressively for power-saving, safe on nv50+ */
 	dev->vblank_disable_immediate = true;