[PATCH] rpi: Conditionally add simple-framebuffer node

[Ivan T. Ivanov]

Hi,

Quoting Ivan T. Ivanov (2021-08-10 17:31:14)
> 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 */

Could someone take a look into this fix, please.

BTW, original message still awaits list moderator approval.

Thank you!
Ivan