Brooklyn/arch/arm/boot/dts/overlays/pps-gpio-overlay.dts

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/dts-v1/;
/plugin/;
/ {
compatible = "brcm,bcm2835";
fragment@0 {
target-path = "/";
__overlay__ {
pps: pps@12 {
compatible = "pps-gpio";
pinctrl-names = "default";
pinctrl-0 = <&pps_pins>;
gpios = <&gpio 18 0>;
status = "okay";
};
};
};
fragment@1 {
target = <&gpio>;
__overlay__ {
pps_pins: pps_pins@12 {
brcm,pins = <18>;
brcm,function = <0>; // in
brcm,pull = <0>; // off
};
};
};
__overrides__ {
gpiopin = <&pps>,"gpios:4",
<&pps>,"reg:0",
<&pps_pins>,"brcm,pins:0",
<&pps_pins>,"reg:0";
assert_falling_edge = <&pps>,"assert-falling-edge?";
capture_clear = <&pps>,"capture-clear?";
};
};