[PATCH 2/7] gpiolib: Support purely name based gpiod lookup in device trees

Linus Walleij linus.walleij at linaro.org
Tue Apr 22 08:00:17 PDT 2014


On Tue, Apr 15, 2014 at 8:41 AM, Chen-Yu Tsai <wens at csie.org> wrote:

> This patch enables gpio-names based gpiod lookup in device tree usage,
> which ignores the index passed to gpiod_get_index. If this fails, fall
> back to the original function-index ("con_id"-gpios) based lookup scheme,
> for backward compatibility and any drivers needing more than one GPIO
> for any function.
>
> Signed-off-by: Chen-Yu Tsai <wens at csie.org>

This looks a bit scary and I cannot claim to realize the entire semantic
effect of this patch, but if it's the way to go then OK.
Acked-by: Linus Walleij <linus.walleij at linaro.org>

Shall I just apply this to the GPIO tree or are you carrying it along with
the other stuff?

Yours,
Linus Walleij



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