[PATCH V3 05/10] include: video: Reserve video using blob

[Nikhil M Jain]

Add method to reserve video using blob.

Signed-off-by: Nikhil M Jain <n-jain1 at ti.com>
---
V3 (patch introduced):
- Add method to reserve video using blob.

This patch depends on a patch sent by Simon Glass
https://lore.kernel.org/u-boot/20230504165823.v3.25.Ieb0824a81d8ad4109fa501c9497b01b8749f913a@changeid/

 drivers/video/video-uclass.c | 12 ++++++++++++
 include/video.h              |  9 +++++++++
 2 files changed, 21 insertions(+)

diff --git a/drivers/video/video-uclass.c b/drivers/video/video-uclass.c
index 8396bdfb11..1264ad1101 100644
--- a/drivers/video/video-uclass.c
+++ b/drivers/video/video-uclass.c
@@ -142,6 +142,18 @@ int video_reserve(ulong *addrp)
 	return 0;
 }
 
+int video_reserve_from_blob(struct video_handoff *ho)
+{
+#if CONFIG_IS_ENABLED(VIDEO)
+	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);
+#endif
+	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 18ed159b8d..13460adc45 100644
--- a/include/video.h
+++ b/include/video.h
@@ -389,4 +389,13 @@ int bmp_display(ulong addr, int x, int y);
  */
 int bmp_info(ulong addr);
 
+/*
+ * video_reserve_from_blob()- Reserve frame-buffer memory for video devices
+ * using blobs.
+ *
+ * @ho: video information passed from SPL
+ * Returns: 0 (always)
+ */
+int video_reserve_from_blob(struct video_handoff *ho);
+
 #endif
-- 
2.34.1