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Date:	Thu, 17 Jul 2008 07:59:03 +0200
From:	Segher Boessenkool <segher@...nel.crashing.org>
To:	Anton Vorontsov <avorontsov@...mvista.com>
Cc:	Richard Purdie <rpurdie@...ys.net>, linuxppc-dev@...abs.org,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH] leds: implement OpenFirmare GPIO LED driver

> diff --git a/Documentation/powerpc/dts-bindings/gpio/led.txt 
> b/Documentation/powerpc/dts-bindings/gpio/led.txt
> new file mode 100644
> index 0000000..7e9ce81
> --- /dev/null
> +++ b/Documentation/powerpc/dts-bindings/gpio/led.txt
> @@ -0,0 +1,15 @@
> +LED connected to GPIO
> +
> +Required properties:
> +- compatible : should be "gpio-led".

This "compatible" name is a bit too generic.  No, I don't know a
better name :-(

> +- label : (optional) the label for this LED. If omitted, the label is
> +  taken from the node name (excluding the unit address).

What is a label?  It should be described here.  Also, its encoding
should be described ("a string" I guess).

> +- gpios : should specify LED GPIO.
> +
> +Example:
> +
> +led@0 {
> +	compatible = "gpio-led";
> +	label = "hdd";
> +	gpios = <&mcu_pio 0 0>;
> +};

You show a unit address but have no "reg" value.  This is
incorrect.

What would be the parent node of this, btw?


Segher

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