linux-kernel - Re: [PATCH v2 0/5] gpio: add support for pull-up/pull-down configuration

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Date:   Wed, 13 Feb 2019 09:15:49 +0100
From:   Linus Walleij <linus.walleij@...aro.org>
To:     Thomas Petazzoni <thomas.petazzoni@...tlin.com>
Cc:     Bartosz Golaszewski <bgolaszewski@...libre.com>,
        Rob Herring <robh+dt@...nel.org>,
        Mark Rutland <mark.rutland@....com>,
        Frank Rowand <frowand.list@...il.com>,
        "open list:GPIO SUBSYSTEM" <linux-gpio@...r.kernel.org>,
        "open list:OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS" 
        <devicetree@...r.kernel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        Jan Kundrát <jan.kundrat@...net.cz>
Subject: Re: [PATCH v2 0/5] gpio: add support for pull-up/pull-down configuration

On Thu, Feb 7, 2019 at 5:29 PM Thomas Petazzoni
<thomas.petazzoni@...tlin.com> wrote:

> As we started discussing in [1], it would be useful to have a way to
> configure pull-up/pull-down resistors for simple GPIO controllers that
> don't have any pinmuxing capability, and therefore no interaction with
> the pinctrl subsystem.
>
> This is a second iteration of the patches (the v1 was posted at
> https://patchwork.ozlabs.org/cover/1020392/).

I don't see any problem with this patch set so I have merged it
into an immutable branch in my GPIO tree, and if it builds fine
I will merge it for devel (for-v5.1).

Notably we do not add a userspace ABI in this patch series.

I guess that is fine for now, but I think we might see userspace
support requests soon. But that can be a different patch
and should be driven by actual need for that.

Yours,
Linus Walleij