1Xilinx Zynq GPIO controller Device Tree Bindings
2-------------------------------------------
3
4Required properties:
5- #gpio-cells 		: Should be two
6			  - First cell is the GPIO line number
7			  - Second cell is used to specify optional
8			    parameters (unused)
9- compatible		: Should be "xlnx,zynq-gpio-1.0" or "xlnx,zynqmp-gpio-1.0"
10- clocks		: Clock specifier (see clock bindings for details)
11- gpio-controller	: Marks the device node as a GPIO controller.
12- interrupts		: Interrupt specifier (see interrupt bindings for
13			  details)
14- interrupt-parent	: Must be core interrupt controller
15- interrupt-controller	: Marks the device node as an interrupt controller.
16- #interrupt-cells 	: Should be 2.  The first cell is the GPIO number.
17			  The second cell bits[3:0] is used to specify trigger type and level flags:
18			      1 = low-to-high edge triggered.
19			      2 = high-to-low edge triggered.
20			      4 = active high level-sensitive.
21			      8 = active low level-sensitive.
22- reg			: Address and length of the register set for the device
23
24Example:
25	gpio@e000a000 {
26		#gpio-cells = <2>;
27		compatible = "xlnx,zynq-gpio-1.0";
28		clocks = <&clkc 42>;
29		gpio-controller;
30		interrupt-parent = <&intc>;
31		interrupts = <0 20 4>;
32		interrupt-controller;
33		#interrupt-cells = <2>;
34		reg = <0xe000a000 0x1000>;
35	};
36