linux-kernel - Re: [PATCH v2] gpio: mockup: Allow probing from device tree

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Message-ID: <20201028115203.qy7nu6bn7dy77vzm@axis.com>
Date:   Wed, 28 Oct 2020 12:52:03 +0100
From:   Vincent Whitchurch <vincent.whitchurch@...s.com>
To:     Andy Shevchenko <andy.shevchenko@...il.com>
CC:     Bamvor Jian Zhang <bamv2005@...il.com>,
        Linus Walleij <linus.walleij@...aro.org>,
        Bartosz Golaszewski <bgolaszewski@...libre.com>,
        kernel <kernel@...s.com>,
        devicetree <devicetree@...r.kernel.org>,
        "open list:GPIO SUBSYSTEM" <linux-gpio@...r.kernel.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        <robh+dt@...nel.org>
Subject: Re: [PATCH v2] gpio: mockup: Allow probing from device tree

On Wed, Oct 28, 2020 at 12:43:22PM +0100, Andy Shevchenko wrote:
> On Wed, Oct 28, 2020 at 10:00 AM Vincent Whitchurch
> <vincent.whitchurch@...s.com> wrote:
> > Allow the mockup driver to be probed via the device tree without any
> > module parameters, allowing it to be used to configure and test higher
> > level drivers like the leds-gpio driver and corresponding userspace
> > before actual hardware is available.
> 
> You have to officially announce a DT binding for that.

Rob Herring has earlier said that was not required for this driver.  As
I mentioned a little further down in the email you are replying to:

| Drop DT binding document, since Rob Herring was OK with not documenting
| this:
| https://lore.kernel.org/linux-devicetree/5baa1ae6.1c69fb81.847f2.3ab1@mx.google.com/