linux-kernel - Re: [PATCH] documentation/devicetree: Move DT bindigns from gpio to watchdog

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Date:	Thu, 22 Aug 2013 09:37:42 +0200
From:	Johannes Thumshirn <johannes.thumshirn@....de>
To:	Stephen Warren <swarren@...dotorg.org>
CC:	Johannes Thumshirn <johannes.thumshirn@....de>,
	Rob Landley <rob@...dley.net>,
	Rob Herring <rob.herring@...xeda.com>,
	Pawel Moll <pawel.moll@....com>,
	Mark Rutland <mark.rutland@....com>,
	Ian Campbell <ian.campbell@...rix.com>,
	Wim Van Sebroeck <wim@...ana.be>,
	Guenter Roeck <linux@...ck-us.net>,
	<devicetree@...r.kernel.org>, <linux-doc@...r.kernel.org>,
	<linux-kernel@...r.kernel.org>, <linux-watchdog@...r.kernel.org>
Subject: Re: [PATCH] documentation/devicetree: Move DT bindigns from gpio to
 watchdog

On Wed, Aug 21, 2013 at 11:34:00AM -0600, Stephen Warren wrote:
> On 08/21/2013 06:42 AM, Johannes Thumshirn wrote:
> > I accidently put the devicetree bindings for the MEN A21 watchdog driver in
> > Documentation/devicetree/bindings/gpio instead of
> > Documentation/devicetree/bindings/watchdog, this patch addresses this error.
>
> The rename sounds fine, so that part,
> Acked-by: Stephen Warren <swarren@...dia.com>
>
> However, the binding itself doesn't look right; it appears to have a
> single "gpios" property rather than using separate named xxx-gpios
> properties for different things...

Ok, so I'll need something like the following?

watchdog {
	compatible ="men,a021-wdt";
	enable-gpios = <&gpio3 9 1>; /* WD_EN */
	fast-gpios = <&gpio3 10 1>;  /* WD_FAST */
	trig-gpios = <&gpio3 11 1>;  /* WD_TRIG */
	rst0-gpio = <&gpio3 6 1>;    /* RST_CAUSE[0] */
	rst1-gpio = <&gpio3 7 1>;    /* RST_CAUSE[1] */
	rst2-gpio = <&gpio3 8 1>;    /* RST_CAUSE[2] */
};

Or is there something like of_get_named_gpios(...) so I can put all 3 rst-gpios
into one property? A quick grep only revealed of_get_named_gpio(...).

Thanks,
Johannes
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