linux-kernel - Re: [PATCH v2] pinctrl: samsung: Calculate GPIO base for pinctrl_add_gpio

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Date:   Mon, 6 Mar 2017 16:49:09 +0000
From:   Charles Keepax <ckeepax@...nsource.wolfsonmicro.com>
To:     Tomasz Figa <tomasz.figa@...il.com>
CC:     "linus.walleij@...aro.org" <linus.walleij@...aro.org>,
        Krzysztof Kozlowski <krzk@...nel.org>,
        Sylwester Nawrocki <s.nawrocki@...sung.com>,
        "linux-gpio@...r.kernel.org" <linux-gpio@...r.kernel.org>,
        "linux-samsung-soc@...r.kernel.org" 
        <linux-samsung-soc@...r.kernel.org>,
        linux-kernel <linux-kernel@...r.kernel.org>,
        <patches@...nsource.wolfsonmicro.com>
Subject: Re: [PATCH v2] pinctrl: samsung: Calculate GPIO base for
 pinctrl_add_gpio_range

On Sat, Mar 04, 2017 at 08:20:11PM +0900, Tomasz Figa wrote:
> Hi Charles,
> 
> 2017-03-01 2:04 GMT+09:00 Charles Keepax <ckeepax@...nsource.wolfsonmicro.com>:
> > As the pinctrl is now added before the GPIOs are registered we need to
> > manually calculate what the GPIO base will be, otherwise the base for
> > each gpio_range will be set to zero. Fortunately the driver
> > already assigns a GPIO base, in samsung_gpiolib_register, and uses the
> > same calculation it does for the pin_base. Meaning the two will always
> > be the same and allowing us to reuse the pinbase and avoid the issue.
> 
> Sorry, I didn't notice before and I don't see the offending patch in ,
> but you should add
> 
> Fixes: XXXXXXXXXXXX ("pinctrl: Patch subject")
> 
> if you intend to submit this patch separately. Otherwise, maybe this
> can be just squashed?
> 

Yeah apologies for that as the original patch hasn't showed up in
the tree yet I couldn't pull a commit ID to add the fixes tag.
Squashing it in is probably the best way to go.

Thanks,
Charles