Re: [PATCH] added device tree support to gpio-generic driver

Geert Uytterhoeven
2015-06-24T11:08:03Z

On Wed, Jun 10, 2015 at 10:42 AM, Linus Walleij
<linus.walleij@linaro.org> wrote:
> On Fri, Jun 5, 2015 at 8:51 AM, Romain Baeriswyl
> <romain.baeriswyl@alitech.com> wrote:
>
>> +Required properties:
>> +- compatible : "basic-mmio-gpio" for little endian register access or
>> + "basic-mmio-gpio-be" for big endian register access
>
> Basic I don't know.
>
> "single-register-gpio" is more to the point, don't you think?
>
>> +- ngpios: Specifies the number of gpio mapped in the register. The value is
>> + limited to the number of bits of the LONG type.
>
> So if it is 8 for a 32 bit register, does it mean bits 0..7 little endian or
> big endian, or does it depend on endianness? Clarify this
> in the binding.

LONG can be 64-bit too.

Gr{oetje,eeting}s,

Geert

--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-m68k.org

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