1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
4 $id: http://devicetree.org/schemas/pps/pps-gpio.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
7 title: PPS Signal via GPIO
10 - Fabio Estevam <festevam@gmail.com>
17 description: The GPIO that provides the PPS signal.
21 description: The GPIO that provides the PPS ECHO signal.
25 description: Duration in ms of the active portion of the echo pulse.
28 description: Indicates a falling edge assert, when present. Rising edge if absent.
35 additionalProperties: false
39 #include <dt-bindings/gpio/gpio.h>
42 compatible = "pps-gpio";
43 pinctrl-names = "default";
44 pinctrl-0 = <&pinctrl_pps>;
45 gpios = <&gpio1 26 GPIO_ACTIVE_HIGH>;
47 echo-gpios = <&gpio1 27 GPIO_ACTIVE_HIGH>;
48 echo-active-ms = <100>;