X-Git-Url: https://git.sur5r.net/?a=blobdiff_plain;f=include%2Fdisplay.h;h=16f317c9c8c2f4d27a5fbe847c049f18e3e3106a;hb=845936792bc3c602470e2d759232fb1537cbc5e7;hp=b1c476628b4f9aa0cb882e435f0535a681a92df3;hpb=eab314f5909dba208d4cb7dc5aac6ee707d5d171;p=u-boot

diff --git a/include/display.h b/include/display.h
index b1c476628b..16f317c9c8 100644
--- a/include/display.h
+++ b/include/display.h
@@ -1,7 +1,6 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
 /*
  * Copyright 2014 Google Inc.
- *
- * SPDX-License-Identifier:     GPL-2.0+
  */
 
 #ifndef _DISPLAY_H
@@ -16,10 +15,12 @@ struct display_timing;
  * @source_id:	ID for the source of the display data, typically a video
  * controller
  * @src_dev:	Source device providing the video
+ * @in_use:	Display is being used
  */
 struct display_plat {
 	int source_id;
 	struct udevice *src_dev;
+	bool in_use;
 };
 
 /**
@@ -41,6 +42,14 @@ int display_read_timing(struct udevice *dev, struct display_timing *timing);
 int display_enable(struct udevice *dev, int panel_bpp,
 		   const struct display_timing *timing);
 
+/**
+ * display_in_use() - Check if a display is in use by any device
+ *
+ * @return true if the device is in use (display_enable() has been called
+ * successfully), else false
+ */
+bool display_in_use(struct udevice *dev);
+
 struct dm_display_ops {
 	/**
 	 * read_timing() - Read information directly