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

From: [email-masked] (Maxime Ripard)
Date: Tue, 22 Apr 2014 17:18:40 +0200

Hi Linus,

On Tue, Apr 22, 2014 at 05:00:17PM +0200, Linus Walleij wrote:
> On Tue, Apr 15, 2014 at 8:41 AM, Chen-Yu Tsai <[email-masked]> 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 <[email-masked]>
> 
> 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 <[email-masked]>
> 
> Shall I just apply this to the GPIO tree or are you carrying it along with
> the other stuff?

This patch has a dependency on the first patch of this serie, since it
uses a binding that was documented there.

Maybe you'll want to wait for the ACK from the DT maintainers to merge
this one.

Maxime

-- 
Maxime Ripard, Free Electrons
Embedded Linux, Kernel and Android engineering
http://free-electrons.com
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