[PATCH] rpi: Conditionally add simple-framebuffer node

[Ivan T. Ivanov]

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 at suse.de>
---
 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 */
-- 
2.32.0