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diff --git a/Documentation/devicetree/bindings/pps/pps-gpio.txt b/Documentation/devicetree/bindings/pps/pps-gpio.txt
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-Device-Tree Bindings for a PPS Signal on GPIO
-
-These properties describe a PPS (pulse-per-second) signal connected to
-a GPIO pin.
-
-Required properties:
-- compatible: should be "pps-gpio"
-- gpios: one PPS GPIO in the format described by ../gpio/gpio.txt
-
-Additional required properties for the PPS ECHO functionality:
-- echo-gpios: one PPS ECHO GPIO in the format described by ../gpio/gpio.txt
-- echo-active-ms: duration in ms of the active portion of the echo pulse
-
-Optional properties:
-- assert-falling-edge: when present, assert is indicated by a falling edge
- (instead of by a rising edge)
-
-Example:
- pps {
- pinctrl-names = "default";
- pinctrl-0 = <&pinctrl_pps>;
-
- gpios = <&gpio1 26 GPIO_ACTIVE_HIGH>;
- assert-falling-edge;
-
- echo-gpios = <&gpio1 27 GPIO_ACTIVE_HIGH>;
- echo-active-ms = <100>;
-
- compatible = "pps-gpio";
- };