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Documentation / devicetree / bindings / gpio / gpio_atmel.txt




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Based on kernel version 3.15.4. Page generated on 2014-07-07 09:00 EST.

1	* Atmel GPIO controller (PIO)
2	
3	Required properties:
4	- compatible: "atmel,<chip>-gpio", where <chip> is at91rm9200 or at91sam9x5.
5	- reg: Should contain GPIO controller registers location and length
6	- interrupts: Should be the port interrupt shared by all the pins.
7	- #gpio-cells: Should be two.  The first cell is the pin number and
8	  the second cell is used to specify optional parameters (currently
9	  unused).
10	- gpio-controller: Marks the device node as a GPIO controller.
11	
12	optional properties:
13	- #gpio-lines: Number of gpio if absent 32.
14	
15	
16	Example:
17		pioA: gpio@fffff200 {
18			compatible = "atmel,at91rm9200-gpio";
19			reg = <0xfffff200 0x100>;
20			interrupts = <2 4>;
21			#gpio-cells = <2>;
22			gpio-controller;
23			#gpio-lines = <19>;
24		};
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