video: Add video_is_active function
Add the helper function video_is_active() to test if one video device
is active.
This function can be used in board code to execute operation
only when the display is probed / really used.
Signed-off-by: Patrick Delaunay <patrick.delaunay@foss.st.com>
Reviewed-by: Patrice Chotard <patrice.chotard@foss.st.com>
diff --git a/include/video.h b/include/video.h
index f14fb15..5ac1387 100644
--- a/include/video.h
+++ b/include/video.h
@@ -276,6 +276,13 @@
#endif
+/**
+ * video_is_active() - Test if one video device it active
+ *
+ * @return true if at least one video device is active, else false.
+ */
+bool video_is_active(void);
+
#ifndef CONFIG_DM_VIDEO
/* Video functions */