linux-kernel - Re: [PATCH 1/3] net: davicom: dm9000: switch to using gpiod API

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Message-ID: <Y3fHF9b1YoVTj/jL@google.com>
Date:   Fri, 18 Nov 2022 09:55:35 -0800
From:   Dmitry Torokhov <dmitry.torokhov@...il.com>
To:     Andrew Lunn <andrew@...n.ch>
Cc:     Paul Cercueil <paul@...pouillou.net>,
        "David S. Miller" <davem@...emloft.net>,
        Heiner Kallweit <hkallweit1@...il.com>,
        Linus Walleij <linus.walleij@...aro.org>,
        Bartosz Golaszewski <brgl@...ev.pl>, netdev@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH 1/3] net: davicom: dm9000: switch to using gpiod API

On Fri, Nov 18, 2022 at 06:50:54PM +0100, Andrew Lunn wrote:
> > > Why is that 1 magically turned into a 0?
> > 
> > Because gpiod uses logical states (think active/inactive), not absolute
> > ones. Here we are deasserting the reset line.
> 
> This is the same question/answer you had with me. Maybe it is worth
> putting this into the commit message for other patches in your series
> to prevent this question/answer again and again.

Right... Actually I think I'll go and define that GPIO_STATE_ACTIVE/
GPIO_STATE_INACTIVE and try to get Linus and Bart to accept it as code
speaks louder than words ;)

Thanks.

-- 
Dmitry