From: arnd@arndb•de (Arnd Bergmann)
To: linux-arm-kernel@lists•infradead.org
Subject: [PATCH 1/4] leds: leds-ns2: add device tree binding
Date: Tue, 16 Oct 2012 18:56:07 +0000 [thread overview]
Message-ID: <201210161856.07692.arnd@arndb.de> (raw)
In-Reply-To: <20121016135153.GE28384@kw.sim.vm.gnt>
On Tuesday 16 October 2012, Simon Guinot wrote:
> On Tue, Oct 16, 2012 at 01:02:39PM +0000, Arnd Bergmann wrote:
> >
> > I'm not overly familiar with the LED subsystem, but isn't this something
> > that could be done with the generic gpio-led driver?
>
> Basically, the leds-gpio driver allows to associate one pin to one LED.
> It is simple and efficient. The LED can be turned on or off. And using a
> platform callback (gpio_blink_set), some hardware timer blink can be
> enabled. A very few platforms are using this last callback.
>
> On the ns2 (and other lacie machines), there is three different modes
> for the front blue LED: on, off and SATA activity blink. Three different
> pins are used to configure the LED. Definitively it is not compatible
> with the leds-gpio driver.
Ok, thanks for the explantion. I think your approach is fine then.
Arnd
next prev parent reply other threads:[~2012-10-16 18:56 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-10-15 15:34 [PATCH 0/4] Add DT support for Network Space v2 and parents Simon Guinot
2012-10-15 15:34 ` [PATCH 1/4] leds: leds-ns2: add device tree binding Simon Guinot
2012-10-15 17:41 ` Jason Cooper
2012-10-15 19:12 ` Simon Guinot
2012-10-15 19:58 ` Jason Cooper
2012-10-16 9:39 ` Simon Guinot
2012-10-16 15:35 ` Jason Cooper
2012-10-16 13:02 ` Arnd Bergmann
2012-10-16 13:51 ` Simon Guinot
2012-10-16 18:56 ` Arnd Bergmann [this message]
2012-10-15 15:34 ` [PATCH 2/4] ARM: kirkwood: DT board setup for Network Space v2 and parents Simon Guinot
2012-10-15 19:36 ` Simon Guinot
2012-10-15 19:58 ` Rob Herring
2012-10-16 20:22 ` [PATCH] ARM: mach-kirkwood: add documentation for device tree bindings Simon Guinot
2012-10-16 20:41 ` [PATCH 2/4] ARM: kirkwood: DT board setup for Network Space v2 and parents Simon Guinot
2012-10-15 15:34 ` [PATCH 3/4] ARM: kirkwood: DT board setup for Network Space Lite v2 Simon Guinot
2012-10-15 15:34 ` [PATCH 4/4] ARM: kirkwood: DT board setup for Network Space Mini v2 Simon Guinot
2012-10-15 17:01 ` [PATCH 0/4] Add DT support for Network Space v2 and parents Jason Cooper
2012-10-15 18:50 ` Simon Guinot
2012-10-15 19:13 ` Jason Cooper
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