linux-kernel - Re: [PATCH 2/2] PCI: mvebu: switch to using gpiod API

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Message-ID: <CACRpkda=BKafP7W4SPm5La2WtqdNvjcjHoLp9oD8Zq5PYHCweA@mail.gmail.com>
Date:   Wed, 14 Sep 2022 15:36:54 +0200
From:   Linus Walleij <linus.walleij@...aro.org>
To:     Kent Gibson <warthog618@...il.com>
Cc:     Bartosz Golaszewski <brgl@...ev.pl>,
        Dmitry Torokhov <dmitry.torokhov@...il.com>,
        Pali Rohár <pali@...nel.org>,
        Shawn Guo <shawn.guo@...aro.org>,
        Lorenzo Pieralisi <lpieralisi@...nel.org>,
        Thomas Petazzoni <thomas.petazzoni@...tlin.com>,
        Bjorn Helgaas <bhelgaas@...gle.com>,
        Rob Herring <robh@...nel.org>,
        Krzysztof Wilczyński <kw@...ux.com>,
        linux-pci@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 2/2] PCI: mvebu: switch to using gpiod API

On Wed, Sep 14, 2022 at 3:00 PM Kent Gibson <warthog618@...il.com> wrote:

> The key distinction is whether you are describing a physical or logical
> value/state.
> High/low should be reserved for physical.
> Active/inactive describe logical.
>
> (I personally dislike "deassert" as it is a manufactured word that feels
> very awkward.)

I would certainly trust anyone native Anglo-Saxon to say what is the
best word here, so I will happily fold on this.

> Changing gpiod_set_value() to gpiod_set_state(), while leaving
> gpiod_set_raw_value() as is, does not reduce confusion - at least not for
> me.

Sloppy of me, certainly these would need to be renamed
too. The _raw being high/low and the logic accessors
active/inactive.

Yours,
Linus Walleij