From: pavel@ucw.cz (Pavel Machek)
To: linux-arm-kernel@lists.infradead.org
Subject: [RFC] User-defined leds
Date: Fri, 5 Aug 2016 21:58:09 +0200 [thread overview]
Message-ID: <20160805195809.GA28410@amd> (raw)
In-Reply-To: <8db4e308-ae2f-ee8a-d570-cd751c4f0269@lechnology.com>
On Fri 2016-08-05 14:54:33, David Lechner wrote:
> On 08/05/2016 02:51 PM, Pavel Machek wrote:
> >
> >Could the device tree be used to bind LED driver to otherwise unused
> >gpio?
>
> There is already a leds-gpio driver that does this.
>
> https://www.kernel.org/doc/Documentation/devicetree/bindings/leds/leds-gpio.txt
Yeah, I know, that's why I suggested it :-).
What might be missing: simple way to attach leds-gpio driver to
hardware on non-devicetree machines, and perhaps teaching leds-gpio
special gpio value "no gpio" meaning ... that hardware is not actually
updated.
Pavel
--
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html
next prev parent reply other threads:[~2016-08-05 19:58 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-07-25 18:36 [RFC] User-defined leds David Lechner
2016-07-25 18:45 ` Marcel Holtmann
2016-07-26 7:38 ` Jacek Anaszewski
2016-08-05 19:51 ` Pavel Machek
2016-08-05 19:54 ` David Lechner
2016-08-05 19:58 ` Pavel Machek [this message]
2016-07-26 7:38 ` Jacek Anaszewski
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