On Sat, Sep 2, 2017 at 3:43 AM, Robert P. J. Day <rpjday@xxxxxxxxxxxxxx> wrote:
>
> Since, according to a recent devicetree ML posting by Rob Herring,
> the node "/chosen@0" is most likely for real Open Firmware and does
> not apply to DTSpec, remove all remaining tests and references for
> that node, of which there are very few left:
>
> arch/microblaze/kernel/prom.c | 3 +--
> arch/mips/generic/yamon-dt.c | 4 ----
> arch/powerpc/boot/oflib.c | 7 ++-----
> drivers/of/base.c | 2 --
> drivers/of/fdt.c | 5 +----
> 5 files changed, 4 insertions(+), 17 deletions(-)
>
> This should be innocuous as, in all of the three arch/ files above,
> there is a test for "chosen" immediately before the test for
> "chosen@0", so nothing should change.
>
> Signed-off-by: Robert P. J. Day <rpjday@xxxxxxxxxxxxxx>
>
> ---
>
> if this patch is premature, then just ignore it, thanks.
>
> diff --git a/arch/microblaze/kernel/prom.c b/arch/microblaze/kernel/prom.c
> index 68f0999..c81bfd7 100644
> --- a/arch/microblaze/kernel/prom.c
> +++ b/arch/microblaze/kernel/prom.c
> @@ -53,8 +53,7 @@ static int __init early_init_dt_scan_chosen_serial(unsigned long node,
>
> pr_debug("%s: depth: %d, uname: %s\n", __func__, depth, uname);
>
> - if (depth == 1 && (strcmp(uname, "chosen") == 0 ||
> - strcmp(uname, "chosen@0") == 0)) {
> + if (depth == 1 && (strcmp(uname, "chosen") == 0)) {
I'd really hoped to remove early_init_dt_scan_chosen_serial()
altogether. It may now be just a matter of adding the compatible
strings to the uartlite earlycon.
Rob
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