linux-kernel - Re: [PATCH] gpio: lp87565: Add support for GPIO

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Date:   Mon, 12 Jun 2017 16:04:16 +0200
From:   Linus Walleij <linus.walleij@...aro.org>
To:     Keerthy <j-keerthy@...com>
Cc:     Lee Jones <lee.jones@...aro.org>,
        "linux-gpio@...r.kernel.org" <linux-gpio@...r.kernel.org>,
        Tero Kristo <t-kristo@...com>,
        Linux-OMAP <linux-omap@...r.kernel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "Andrew F. Davis" <afd@...com>
Subject: Re: [PATCH] gpio: lp87565: Add support for GPIO

On Sun, Jun 11, 2017 at 6:27 AM, Keerthy <j-keerthy@...com> wrote:
> On Friday 09 June 2017 02:06 PM, Linus Walleij wrote:

>> If this IC has several function modes for the pins it should also
>> be a pin controller... I know it is a lot of upfront code, but... it will
>> benefit you in the long run. Is it really just these three pins?
>>
>> Maybe we should merge it into
>> drivers/pinctrl/pinctrl-lp87565.c so that at least file placement does
>> not become a problem later?
>
> No Linus. Only 2 modes. So went along the lines of
> drivers/gpio/gpio-lp873x.c. If you are not okay with this. I can as well
> remove this part.

It's fine. Sometimes implementing things strictly in very generic frameworks
will become a burden because of unnecessary complexities.

Can you just document it with some comments so it is clear what
is happening here and what the two modes are? And keep it like this
otherwise.

Yours,
Linus Walleij