1 * Marvell PXA GPIO controller
4 - compatible : Should be "intel,pxa25x-gpio", "intel,pxa26x-gpio",
5 "intel,pxa27x-gpio", "intel,pxa3xx-gpio",
6 "marvell,pxa93x-gpio", "marvell,mmp-gpio" or
8 - reg : Address and length of the register set for the device
9 - interrupts : Should be the port interrupt shared by all gpio pins.
10 There're three gpio interrupts in arch-pxa, and they're gpio0,
11 gpio1 and gpio_mux. There're only one gpio interrupt in arch-mmp,
13 - interrupt-names : Should be the names of irq resources. Each interrupt
14 uses its own interrupt name, so there should be as many interrupt names
15 as referenced interrups.
16 - interrupt-controller : Identifies the node as an interrupt controller.
17 - #interrupt-cells: Specifies the number of cells needed to encode an
19 - gpio-controller : Marks the device node as a gpio controller.
20 - #gpio-cells : Should be one. It is the pin number.
25 compatible = "marvell,mmp-gpio";
26 reg = <0xd4019000 0x1000>;
28 interrupt-names = "gpio_mux";
32 #interrupt-cells = <1>;
35 * Marvell Orion GPIO Controller
38 - compatible : Should be "marvell,orion-gpio"
39 - reg : Address and length of the register set for controller.
40 - gpio-controller : So we know this is a gpio controller.
41 - ngpio : How many gpios this controller has.
42 - interrupts : Up to 4 Interrupts for the controller.
45 - mask-offset : For SMP Orions, offset for Nth CPU
50 compatible = "marvell,orion-gpio";
55 interrupts = <35>, <36>, <37>, <38>;