linux-kernel - Re: [PATCH 2/8] gpiolib: coldfire: remove custom asm/gpio.h

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Date:   Fri, 27 Jan 2023 10:41:53 +0100
From:   Bartosz Golaszewski <brgl@...ev.pl>
To:     Arnd Bergmann <arnd@...nel.org>
Cc:     linux-gpio@...r.kernel.org, Arnd Bergmann <arnd@...db.de>,
        Andy Shevchenko <andriy.shevchenko@...ux.intel.com>,
        Bartosz Golaszewski <bartosz.golaszewski@...aro.org>,
        Christophe Leroy <christophe.leroy@...roup.eu>,
        Dmitry Torokhov <dmitry.torokhov@...il.com>,
        Linus Walleij <linus.walleij@...aro.org>,
        linux-kernel@...r.kernel.org,
        Geert Uytterhoeven <geert@...ux-m68k.org>
Subject: Re: [PATCH 2/8] gpiolib: coldfire: remove custom asm/gpio.h

On Thu, Jan 26, 2023 at 2:28 PM Arnd Bergmann <arnd@...nel.org> wrote:
>
> From: Arnd Bergmann <arnd@...db.de>
>
> Now that coldfire is the only user of a custom asm/gpio.h, it seems
> better to remove this as well, and have the same interface everywhere.
>
> For the gpio_get_value()/gpio_set_value()/gpio_to_irq(), gpio_cansleep()
> functions, the custom version is only a micro-optimization to inline the
> function for constant GPIO numbers. However, in the coldfire defconfigs,
> I was unable to find a single instance where this micro-optimization
> was even used, and according to Geert the only user appears to be the
> QSPI chip that is disabled everywhere.
>
> The custom gpio_request_one() function is even less useful, as it is
> guarded by an #ifdef that is never true.
>
> Reviewed-by: Geert Uytterhoeven <geert@...ux-m68k.org>
> Reviewed-by: Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
> Signed-off-by: Arnd Bergmann <arnd@...db.de>
> ---

Acked-by: Bartosz Golaszewski <bartosz.golaszewski@...aro.org>