1 OMAP GPIO controller bindings
5 - "ti,omap2-gpio" for OMAP2 controllers
6 - "ti,omap3-gpio" for OMAP3 controllers
7 - "ti,omap4-gpio" for OMAP4 controllers
8 - #gpio-cells : Should be two.
9 - first cell is the pin number
10 - second cell is used to specify optional parameters (unused)
11 - gpio-controller : Marks the device node as a GPIO controller.
12 - #interrupt-cells : Should be 2.
13 - interrupt-controller: Mark the device node as an interrupt controller
14 The first cell is the GPIO number.
15 The second cell is used to specify flags:
16 bits[3:0] trigger type and level flags:
17 1 = low-to-high edge triggered.
18 2 = high-to-low edge triggered.
19 4 = active high level-sensitive.
20 8 = active low level-sensitive.
22 OMAP specific properties:
23 - ti,hwmods: Name of the hwmod associated to the GPIO:
24 "gpio<X>", <X> being the 1-based instance number from the HW spec
30 compatible = "ti,omap4-gpio";
34 #interrupt-cells = <2>;