linux-kernel - Re: [PATCH v12 3/7] gpiolib: of: make fwnode take precedence in struct gpio

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Message-ID: <CAMRc=MeLVsy3hfVdQdofk+m7VcTYYKLKGyeoyK7T4r87qn6sbA@mail.gmail.com>
Date:   Mon, 6 Dec 2021 15:03:31 +0100
From:   Bartosz Golaszewski <brgl@...ev.pl>
To:     Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
Cc:     Kent Gibson <warthog618@...il.com>,
        Linus Walleij <linus.walleij@...aro.org>,
        Shuah Khan <shuah@...nel.org>,
        Geert Uytterhoeven <geert@...ux-m68k.org>,
        Viresh Kumar <viresh.kumar@...aro.org>,
        "open list:GPIO SUBSYSTEM" <linux-gpio@...r.kernel.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        linux-kselftest@...r.kernel.org
Subject: Re: [PATCH v12 3/7] gpiolib: of: make fwnode take precedence in
 struct gpio_chip

On Mon, Dec 6, 2021 at 2:55 PM Andy Shevchenko
<andriy.shevchenko@...ux.intel.com> wrote:
>
> On Fri, Dec 03, 2021 at 02:29:59PM +0100, Bartosz Golaszewski wrote:
> > If the driver sets the fwnode in struct gpio_chip, let it take
> > precedence over the of_node.
>
> By the way, have you tried this on pure DT-less/ACPI-less platform
> (CONFIG_OF=n, CONFIG_ACPI=n)? I believe gpio-sim in that case won't work,
> because this doesn't affect swnode case, right?
>

Works just fine on a BeagleBone Black - both the regular GPIO
controllers as well as DT-instantiated gpio-sim.

Bart