blob: e0d0446a6b78ef29ac895caeaeb2e9b7b9a53bae (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
|
Cirrus Logic CLPS711X GPIO controller
Required properties:
- compatible: Should be "cirrus,clps711x-gpio"
- reg: Physical base GPIO controller registers location and length.
There should be two registers, first is DATA register, the second
is DIRECTION.
- gpio-controller: Marks the device node as a gpio controller.
- #gpio-cells: Should be two. The first cell is the pin number and
the second cell is used to specify the gpio polarity:
0 = active high
1 = active low
Note: Each GPIO port should have an alias correctly numbered in "aliases"
node.
Example:
aliases {
gpio0 = &porta;
};
porta: gpio@80000000 {
compatible = "cirrus,clps711x-gpio";
reg = <0x80000000 0x1>, <0x80000040 0x1>;
gpio-controller;
#gpio-cells = <2>;
};
|
