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From:   Geert Uytterhoeven <geert@linux-m68k.org>
Date:   Fri, 2 Sep 2022 13:02:10 +0200
Message-ID: <CAMuHMdVVup8J0uge02H4u6o8NzxfkuFuZfExJ5u2M3FBE+RSAQ@mail.gmail.com>
Subject: Re: [PATCH v1 4/8] gpiolib: Get rid of ARCH_NR_GPIOS
To:     Andy Shevchenko <andy.shevchenko@gmail.com>
Cc:     Arnd Bergmann <arnd@arndb.de>,
        =?UTF-8?B?TnVubyBTw6E=?= <nuno.sa@analog.com>,
        Christophe Leroy <christophe.leroy@csgroup.eu>,
        Linus Walleij <linus.walleij@linaro.org>,
        Bartosz Golaszewski <brgl@bgdev.pl>,
        Geert Uytterhoeven <geert+renesas@glider.be>,
        Keerthy <j-keerthy@ti.com>, Russell King <linux@armlinux.org.uk>,
        Jonathan Corbet <corbet@lwn.net>,
        Thomas Gleixner <tglx@linutronix.de>,
        Ingo Molnar <mingo@redhat.com>, Borislav Petkov <bp@alien8.de>,
        Dave Hansen <dave.hansen@linux.intel.com>,
        "H. Peter Anvin" <hpa@zytor.com>,
        Catalin Marinas <catalin.marinas@arm.com>,
        Will Deacon <will@kernel.org>,
        Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
        "open list:GPIO SUBSYSTEM" <linux-gpio@vger.kernel.org>,
        linux-arm Mailing List <linux-arm-kernel@lists.infradead.org>,
        Linux-Arch <linux-arch@vger.kernel.org>,
        Linux Documentation List <linux-doc@vger.kernel.org>,
        "maintainer:X86 ARCHITECTURE (32-BIT AND 64-BIT)" <x86@kernel.org>,
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Hi Andy,

CC linux-sh

On Fri, Sep 2, 2022 at 12:53 PM Andy Shevchenko
<andy.shevchenko@gmail.com> wrote:
> On Wed, Aug 31, 2022 at 11:55 PM Arnd Bergmann <arnd@arndb.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@linux-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