include: video: Reserve video using blob

Add method to reserve video framebuffer information using blob,
received from previous stage.

Signed-off-by: Nikhil M Jain <n-jain1@ti.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
diff --git a/drivers/video/video-uclass.c b/drivers/video/video-uclass.c
index 95e874b..435dab1 100644
--- a/drivers/video/video-uclass.c
+++ b/drivers/video/video-uclass.c
@@ -194,6 +194,17 @@
 	return 0;
 }
 
+int video_reserve_from_bloblist(struct video_handoff *ho)
+{
+	gd->video_bottom = ho->fb;
+	gd->fb_base = ho->fb;
+	gd->video_top = ho->fb + ho->size;
+	debug("Reserving %luk for video using blob at: %08x\n",
+	      ((unsigned long)ho->size) >> 10, (u32)ho->fb);
+
+	return 0;
+}
+
 int video_fill(struct udevice *dev, u32 colour)
 {
 	struct video_priv *priv = dev_get_uclass_priv(dev);
diff --git a/include/video.h b/include/video.h
index 9729fa3..2699151 100644
--- a/include/video.h
+++ b/include/video.h
@@ -406,4 +406,13 @@
  */
 int bmp_info(ulong addr);
 
+/*
+ * video_reserve_from_bloblist()- Reserve frame-buffer memory for video devices
+ * using blobs.
+ *
+ * @ho: video information passed from SPL
+ * Returns: 0 (always)
+ */
+int video_reserve_from_bloblist(struct video_handoff *ho);
+
 #endif