From: Rob Herring <robherring2-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
To: Subodh Nijsure <snijsure-4jo+YWezP1RWk0Htik3J/w@public.gmane.org>
Cc: devicetree-discuss-uLR06cmDAlY/bJ5BZ2RsiQ@public.gmane.org
Subject: Re: Configure standalone GPIO in device tree?
Date: Mon, 11 Jun 2012 09:21:35 -0500 [thread overview]
Message-ID: <4FD5FEEF.70606@gmail.com> (raw)
In-Reply-To: <4FD5F8F7.1020901-4jo+YWezP1RWk0Htik3J/w@public.gmane.org>
On 06/11/2012 08:56 AM, Subodh Nijsure wrote:
> Hello,
>
> I am working with a hardware that has couple of GPIOs that are not tied
> to any specific device one to indicate board status, other to indicate
> presence of this hardware to some other 'independent' hardware.
>
> I have been going through some of the device tree files and I haven't
> come across way to represent a GPIO independent of a specific device, is
> it possible to do so using DT? How would I specify such a GPIO?
>
> I am working on MX28 (MXS for linux) based platform but if there are
> some other platforms already doing that would appreciate pointer to that
> dt file.
How do you program that gpio line? It has to be controlled from somewhere.
Rob
next prev parent reply other threads:[~2012-06-11 14:21 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-06-11 13:56 Configure standalone GPIO in device tree? Subodh Nijsure
[not found] ` <4FD5F8F7.1020901-4jo+YWezP1RWk0Htik3J/w@public.gmane.org>
2012-06-11 14:21 ` Rob Herring [this message]
[not found] ` <4FD5FEEF.70606-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
2012-06-11 15:37 ` Subodh Nijsure
[not found] ` <4FD610D2.5020603-4jo+YWezP1RWk0Htik3J/w@public.gmane.org>
2012-06-11 15:46 ` Rob Herring
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