1 * Abilis TB10x GPIO controller
2
3 Required Properties:
4 - compatible: Should be "abilis,tb10x-gpio"
5 - reg: Address and length of the register set for the device
6 - gpio-controller: Marks the device node as a gpio controller.
7 - #gpio-cells: Should be <2>. The first cell is the pin number and the
8 second cell is used to specify optional parameters:
9 - bit 0 specifies polarity (0 for normal, 1 for inverted).
10 - abilis,ngpio: the number of GPIO pins this driver controls.
11
12 Optional Properties:
13 - interrupt-controller: Marks the device node as an interrupt controller.
14 - #interrupt-cells: Should be <1>. Interrupts are triggered on both edges.
15 - interrupts: Defines the interrupt line connecting this GPIO controller to
16 its parent interrupt controller.
17
18 GPIO ranges are specified as described in
19 Documentation/devicetree/bindings/gpio/gpio.txt
20
21 Example:
22
23 gpioa: gpio@ff140000 {
24 compatible = "abilis,tb10x-gpio";
25 interrupt-controller;
26 #interrupt-cells = <1>;
27 interrupt-parent = <&tb10x_ictl>;
28 interrupts = <27 2>;
29 reg = <0xFF140000 0x1000>;
30 gpio-controller;
31 #gpio-cells = <2>;
32 abilis,ngpio = <3>;
33 gpio-ranges = <&iomux 0 0 0>;
34 gpio-ranges-group-names = "gpioa_pins";
35 };
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