1APM X-Gene Standby GPIO controller bindings
2
3This is a gpio controller in the standby domain.
4
5There are 20 GPIO pins from 0..21. There is no GPIO_DS14 or GPIO_DS15,
6only GPIO_DS8..GPIO_DS13 support interrupts. The IRQ mapping
7is currently 1-to-1 on interrupts 0x28 thru 0x2d.
8
9Required properties:
10- compatible: "apm,xgene-gpio-sb" for the X-Gene Standby GPIO controller
11- reg: Physical base address and size of the controller's registers
12- #gpio-cells: Should be two.
13	- first cell is the pin number
14	- second cell is used to specify the gpio polarity:
15		0 = active high
16		1 = active low
17- gpio-controller: Marks the device node as a GPIO controller.
18- interrupts: Shall contain exactly 6 interrupts.
19
20Example:
21	sbgpio: sbgpio@17001000 {
22		compatible = "apm,xgene-gpio-sb";
23		reg = <0x0 0x17001000 0x0 0x400>;
24		#gpio-cells = <2>;
25		gpio-controller;
26		interrupts = 	<0x0 0x28 0x1>,
27				<0x0 0x29 0x1>,
28				<0x0 0x2a 0x1>,
29				<0x0 0x2b 0x1>,
30				<0x0 0x2c 0x1>,
31				<0x0 0x2d 0x1>;
32	};
33