mirror of https://github.com/Qortal/Brooklyn
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
64 lines
1.7 KiB
64 lines
1.7 KiB
# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) |
|
%YAML 1.2 |
|
--- |
|
$id: http://devicetree.org/schemas/serio/ps2-gpio.yaml# |
|
$schema: http://devicetree.org/meta-schemas/core.yaml# |
|
|
|
title: Bindings for GPIO based PS/2 |
|
|
|
maintainers: |
|
- Danilo Krummrich <[email protected]> |
|
|
|
properties: |
|
compatible: |
|
const: ps2-gpio |
|
|
|
data-gpios: |
|
description: |
|
the gpio used for the data signal - this should be flagged as |
|
active high using open drain with (GPIO_ACTIVE_HIGH | GPIO_OPEN_DRAIN) |
|
from <dt-bindings/gpio/gpio.h> since the signal is open drain by |
|
definition |
|
maxItems: 1 |
|
|
|
clk-gpios: |
|
description: |
|
the gpio used for the clock signal - this should be flagged as |
|
active high using open drain with (GPIO_ACTIVE_HIGH | GPIO_OPEN_DRAIN) |
|
from <dt-bindings/gpio/gpio.h> since the signal is open drain by |
|
definition |
|
maxItems: 1 |
|
|
|
interrupts: |
|
description: |
|
The given interrupt should trigger on the falling edge of the clock line. |
|
maxItems: 1 |
|
|
|
write-enable: |
|
type: boolean |
|
description: |
|
Indicates whether write function is provided to serio device. Possibly |
|
providing the write function will not work, because of the tough timing |
|
requirements. |
|
|
|
required: |
|
- compatible |
|
- data-gpios |
|
- clk-gpios |
|
- interrupts |
|
|
|
additionalProperties: false |
|
|
|
examples: |
|
- | |
|
#include <dt-bindings/gpio/gpio.h> |
|
#include <dt-bindings/interrupt-controller/irq.h> |
|
|
|
ps2 { |
|
compatible = "ps2-gpio"; |
|
interrupt-parent = <&gpio>; |
|
interrupts = <23 IRQ_TYPE_EDGE_FALLING>; |
|
data-gpios = <&gpio 24 (GPIO_ACTIVE_HIGH | GPIO_OPEN_DRAIN)>; |
|
clk-gpios = <&gpio 23 (GPIO_ACTIVE_HIGH | GPIO_OPEN_DRAIN)>; |
|
write-enable; |
|
};
|
|
|