From acc6987e59137485dbac0ee4a07cc349210954f3 Mon Sep 17 00:00:00 2001
From: "Ivan T. Ivanov" <iivanov@suse.de>
Date: Tue, 10 Aug 2021 16:31:14 +0200
Subject: [PATCH] rpi: Conditionally add simple-framebuffer node
It appears that RPi firmware has already added framebuffer
node under /chosen, at least on RPi 2 versions. So check
for this and don't add duplicate node.
Signed-off-by: Ivan T. Ivanov <iivanov@suse.de>
Signed-off-by: Matthias Brugger <mbrugger@suse.com>
---
board/raspberrypi/rpi/rpi.c | 11 +++++------
1 file changed, 5 insertions(+), 6 deletions(-)
diff --git a/board/raspberrypi/rpi/rpi.c b/board/raspberrypi/rpi/rpi.c
index df52a4689f..372b26b6f2 100644
--- a/board/raspberrypi/rpi/rpi.c
+++ b/board/raspberrypi/rpi/rpi.c
@@ -497,12 +497,11 @@ void *board_fdt_blob_setup(void)
int ft_board_setup(void *blob, struct bd_info *bd)
{
- /*
- * For now, we simply always add the simplefb DT node. Later, we
- * should be more intelligent, and e.g. only do this if no enabled DT
- * node exists for the "real" graphics driver.
- */
- lcd_dt_simplefb_add_node(blob);
+ int node;
+
+ node = fdt_node_offset_by_compatible(blob, -1, "simple-framebuffer");
+ if (node < 0)
+ lcd_dt_simplefb_add_node(blob);
#ifdef CONFIG_EFI_LOADER
/* Reserve the spin table */
--
2.39.5