linux-kernel - Re: [PATCH v1 4/8] gpiolib: Get rid of ARCH_NR

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Date:   Fri, 2 Sep 2022 13:02:10 +0200
From:   Geert Uytterhoeven <geert@...ux-m68k.org>
To:     Andy Shevchenko <andy.shevchenko@...il.com>
Cc:     Arnd Bergmann <arnd@...db.de>,
        Nuno Sá <nuno.sa@...log.com>,
        Christophe Leroy <christophe.leroy@...roup.eu>,
        Linus Walleij <linus.walleij@...aro.org>,
        Bartosz Golaszewski <brgl@...ev.pl>,
        Geert Uytterhoeven <geert+renesas@...der.be>,
        Keerthy <j-keerthy@...com>, Russell King <linux@...linux.org.uk>,
        Jonathan Corbet <corbet@....net>,
        Thomas Gleixner <tglx@...utronix.de>,
        Ingo Molnar <mingo@...hat.com>, Borislav Petkov <bp@...en8.de>,
        Dave Hansen <dave.hansen@...ux.intel.com>,
        "H. Peter Anvin" <hpa@...or.com>,
        Catalin Marinas <catalin.marinas@....com>,
        Will Deacon <will@...nel.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        "open list:GPIO SUBSYSTEM" <linux-gpio@...r.kernel.org>,
        linux-arm Mailing List <linux-arm-kernel@...ts.infradead.org>,
        Linux-Arch <linux-arch@...r.kernel.org>,
        Linux Documentation List <linux-doc@...r.kernel.org>,
        "maintainer:X86 ARCHITECTURE (32-BIT AND 64-BIT)" <x86@...nel.org>,
        Linux-sh list <linux-sh@...r.kernel.org>
Subject: Re: [PATCH v1 4/8] gpiolib: Get rid of ARCH_NR_GPIOS

Hi Andy,

CC linux-sh

On Fri, Sep 2, 2022 at 12:53 PM Andy Shevchenko
<andy.shevchenko@...il.com> wrote:
> On Wed, Aug 31, 2022 at 11:55 PM Arnd Bergmann <arnd@...db.de> wrote:
> > drivers/pinctrl/renesas/gpio.c: gc->base = pfc->nr_gpio_pins; // ??? don't understand
>
> I think, w/o looking into the code, that this just guarantees the
> continuous numbering for all banks (chips) on the platform.

This part of the code depends on CONFIG_PINCTRL_SH_FUNC_GPIO,
which is used only on SH.

Gr{oetje,eeting}s,

                        Geert

--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@...ux-m68k.org

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
                                -- Linus Torvalds