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Message-ID: <CACRpkdaobDYg6KAEetu5dpp+6ksu7ptvQ+D9rn7jRH0H+bFFQA@mail.gmail.com>
Date: Mon, 24 Feb 2014 13:08:46 +0100
From: Linus Walleij <linus.walleij@...aro.org>
To: David Daney <ddaney.cavm@...il.com>
Cc: Grant Likely <grant.likely@...aro.org>,
Rob Herring <robh+dt@...nel.org>,
"devicetree@...r.kernel.org" <devicetree@...r.kernel.org>,
Alexandre Courbot <gnurou@...il.com>,
"linux-gpio@...r.kernel.org" <linux-gpio@...r.kernel.org>,
"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
David Daney <david.daney@...ium.com>
Subject: Re: [PATCH] of/gpio: Define OF_GPIO_OPEN_DRAIN flag for Open Drain outputs.
On Mon, Feb 10, 2014 at 11:05 PM, David Daney <ddaney.cavm@...il.com> wrote:
> From: David Daney <david.daney@...ium.com>
>
> When we have a GPIO pin connected to an open-drain network, we want a
> standard way of specifying this in the device tree. So we choose bit
> 1 of the flag field to indicate open drain.
This is a good idea.
But the patch is missing two things:
- Add open source as well, as indicated.
- Add this definition to include/dt-bindings/gpio/gpio.h
- Add this *and* the missing active low property to the binding
documentation in:
Documentation/devicetree/bindings/gpio/gpio.txt
(pls help with this!)
Yours,
Linus Walleij
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