Revisiting rbtx4927: gpiod_direction_output_raw: invalid GPIO

[Geert Uytterhoeven <geert@xxxxxxxxxxxxxx>]

Hi Nemoto-san,

I've just updated my old rbtx4927 from v3.13-rc3 to v4.6-rc3.
Surprisingly, it boots to nfsroot without any kernel changes.

However, there's an annoying warning in the boot log:

        gpiod_direction_output_raw: invalid GPIO

This is caused by the following code in arch/mips/txx9/rbtx4927/setup.c:

        static void __init rbtx4927_mem_setup(void)
        {

                /* TX4927-SIO DTR on (PIO[15]) */
                gpio_request(15, "sio-dtr");

returns -EPROBE_DEFER

                gpio_direction_output(15, 1);

VALIDATE_DESC triggers the warning.

Probably a silly GPIO conversion was missed during the last 2+ years?

I can bisect (which may take a while), but perhaps this immediately rings a bell
with someone?

Thanks!

Gr{oetje,eeting}s,

                        Geert

--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@xxxxxxxxxxxxxx

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
                                -- Linus Torvalds