[PATCH v2] powerpc: Specify GPIO number base for controller in DT

[Kumar Gala]

On Oct 23, 2008, at 9:30 AM, Wolfgang Ocker wrote:

> --- linux-2.6.27.2/Documentation/powerpc/booting-without- 
> of.txt.of_gpiospecbase	2008-10-18 19:57:22.000000000 +0200
> +++ linux-2.6.27.2/Documentation/powerpc/booting-without-of.txt	 
> 2008-10-23 16:23:07.000000000 +0200
> @@ -2580,12 +2582,17 @@
> Every GPIO controller node must have #gpio-cells property defined,
> this information will be used to translate gpio-specifiers.
>
> +Optional properties:
> +	base: first GPIO number handled by this controller; default is -1,
> +		meaning dynamic ID allocation

"default -1" doesn't make any sense.  I assume you mean if the  
property doesn't it exist the behavior is "dynamic ID allocation"

>
> +
> Example of two SOC GPIO banks defined as gpio-controller nodes:
>
> 	qe_pio_a: gpio-controller at 1400 {
> 		#gpio-cells = <2>;
> 		compatible = "fsl,qe-pario-bank-a", "fsl,qe-pario-bank";
> 		reg = <0x1400 0x18>;
> +		base = < 0x20 >;
> 		gpio-controller;
> 	};
>