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

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Message-ID: <CA+Ln22HUK2NBV7=NCeJ3r1J2E5-C_5qc+i9Co5js9VamAXF04g@mail.gmail.com>
Date:   Sat, 4 Mar 2017 20:20:11 +0900
From:   Tomasz Figa <tomasz.figa@...il.com>
To:     Charles Keepax <ckeepax@...nsource.wolfsonmicro.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

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?

>
> Signed-off-by: Charles Keepax <ckeepax@...nsource.wolfsonmicro.com>
> ---
>
> Changes since v1:
>  - Use grange.base in samsung_gpiolib_register to make it more
>    clear the two are related in the driver.

Other than the above:

Acked-by: Tomasz Figa <tomasz.figa@...il.com>

Best regards,
Tomasz