When plat->base is set by driver then skip frame buffer reservation and
allocation.
Signed-off-by: Pali Rohár <p...@kernel.org>
---
drivers/video/video-uclass.c | 7 ++++++-
1 file changed, 6 insertions(+), 1 deletion(-)
diff --git a/drivers/video/video-uclass.c b/drivers/video/video-uclass.c
index 7d499bcec51d..88797d4a21c2 100644
--- a/drivers/video/video-uclass.c
+++ b/drivers/video/video-uclass.c
@@ -33,7 +33,8 @@
* information represents the requires size and alignment of the frame buffer
* for the device. The values can be an over-estimate but cannot be too
* small. The actual values will be suppled (in the same manner) by the bind()
- * method after relocation.
+ * method after relocation. Additionally driver can allocate frame buffer
+ * itself by setting plat->base.
*
* This information is then picked up by video_reserve() which works out how
* much memory is needed for all devices. This is allocated between
@@ -78,6 +79,10 @@ static ulong alloc_fb(struct udevice *dev, ulong *addrp)
if (!plat->size)
return 0;
+ /* Allow drivers to allocate the frame buffer themselves */
+ if (plat->base)
+ return 0;
+
align = plat->align ? plat->align : 1 << 20;
base = *addrp - plat->size;
base &= ~(align - 1);
--
2.20.1
