linux-kernel - Re: [PATCH 0/5] gpio: refactor of_parse_own_gpio() and of_get_named_gpiod

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Message-ID: <CACRpkdYDM9bGPn9PFUxC2JeN_BivFpQvehK=FBALzvkoD6KSGA@mail.gmail.com>
Date:	Thu, 23 Jun 2016 09:44:14 +0200
From:	Linus Walleij <linus.walleij@...aro.org>
To:	Masahiro Yamada <yamada.masahiro@...ionext.com>
Cc:	"linux-gpio@...r.kernel.org" <linux-gpio@...r.kernel.org>,
	Alexandre Courbot <gnurou@...il.com>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH 0/5] gpio: refactor of_parse_own_gpio() and of_get_named_gpiod_flags()

On Tue, Jun 14, 2016 at 12:07 PM, Masahiro Yamada
<yamada.masahiro@...ionext.com> wrote:

> But, after reading this code around, I thought it was more complex
> than needed.  So, I decided to clean-up it instead of fix the bug.
>
> Talking about of_parse_own_gpio(), does it need to call gpiochip_find()
> in the first place?
>
> The caller of this function, of_gpiochip_scan_gpios() already knows the
> gpio_chip.  I want to make the implementation more straight-forward.

Thanks a lot for this patch series, it eases maintenance of the gpiolib
OF core a lot, and makes the code size smaller too. I bet it also
gives better speed.

This is a very valuable contribution from you and Socionext to anyone
using GPIO with DT.

Yours,
Linus Walleij