xref: /freebsd/sys/contrib/device-tree/Bindings/serio/ps2-gpio.txt (revision cfd6422a5217410fbd66f7a7a8a64d9d85e61229)
1Device-Tree binding for ps/2 gpio device
2
3Required properties:
4	- compatible = "ps2-gpio"
5	- data-gpios: the data pin
6	- clk-gpios: the clock pin
7	- interrupts: Should trigger on the falling edge of the clock line.
8
9Optional properties:
10	- write-enable: Indicates whether write function is provided
11	to serio device. Possibly providing the write fn will not work, because
12	of the tough timing requirements.
13
14Example nodes:
15
16ps2@0 {
17	compatible = "ps2-gpio";
18	interrupt-parent = <&gpio>;
19	interrupts = <23 IRQ_TYPE_EDGE_FALLING>;
20	data-gpios = <&gpio 24 GPIO_ACTIVE_HIGH>;
21	clk-gpios = <&gpio 23 GPIO_ACTIVE_HIGH>;
22	write-enable;
23};
24