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Spaces to tabs for pps-rp1.dts
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‎arch/arm/boot/dts/overlays/pps-rp1.dts‎

Lines changed: 78 additions & 78 deletions
Original file line numberDiff line numberDiff line change
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//SPDX-License-Identifier: GPL-3.0-only
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//This file is released under the GPL v3.0 License, and comes without warranty, express or implied.
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//(C) Josh Blake, 2026
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/*
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This file is released under the GPL v3.0 License, and comes without warranty, express or implied.
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(C) Josh Blake, 2026
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*/
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/*
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dtparams:
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pin: (integer) Specifies the PPS Input pin. Takes the pin number correlating to the RPi 40-pin GPIO. Defaults to GPIO 18.
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pull-none: (boolean) Disable pull-up/down resistors on the PPS Input pin.
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pull-up: (boolean) Enable pull-up resistor on the PPS Input pin.
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pull-down: (boolean) Enable pull-down resistor on the PPS Input pin.
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schmitt-trigger: (boolean) Enable the Schmitt-trigger on the PPS Input pin. Defaults to off.
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echo-pin: (integer) Specifies the PPS Echo Output pin. Takes the pin number correlating to the RPi 40-pin GPIO. Defaults to GPIO 17.
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echo-ms: (integer) Specifies the pulse-width in ms that the echo signal outputs on the PPS Echo Output pin. Must be less than 999. Defaults to 10ms.
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echo: (boolean) Enables the PPS Echo Output signal. Defaults to off.
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capture-clear: (boolean) Captures the clear event time. Defaults to off.
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assert-falling-edge: (boolean) Uses the falling signal edge instead of the rising signal edge. Defaults to off.
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* dtparams:
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* pin: (integer) Specifies the PPS Input pin. Takes the pin number correlating to the RPi 40-pin GPIO. Defaults to GPIO 18.
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* pull-none: (boolean) Disable pull-up/down resistors on the PPS Input pin.
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* pull-up: (boolean) Enable pull-up resistor on the PPS Input pin.
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* pull-down: (boolean) Enable pull-down resistor on the PPS Input pin.
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* schmitt-trigger: (boolean) Enable the Schmitt-trigger on the PPS Input pin. Defaults to off.
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* echo-pin: (integer) Specifies the PPS Echo Output pin. Takes the pin number correlating to the RPi 40-pin GPIO. Defaults to GPIO 17.
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* echo-ms: (integer) Specifies the pulse-width in ms that the echo signal outputs on the PPS Echo Output pin. Must be less than 999. Defaults to 10ms.
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* echo: (boolean) Enables the PPS Echo Output signal. Defaults to off.
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* capture-clear: (boolean) Captures the clear event time. Defaults to off.
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* assert-falling-edge: (boolean) Uses the falling signal edge instead of the rising signal edge. Defaults to off.
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*/
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/dts-v1/;
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/plugin/;
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/ {
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compatible = "brcm,bcm2712";
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compatible = "brcm,bcm2712";
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fragment@0 {
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target-path = "/";
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__overlay__ {
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pps: pps@ {
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compatible = "pps-gpio";
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pinctrl-names = "default";
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pinctrl-0 = <&pps_gpios>;
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gpios = <&gpio 18 0>;
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status = "okay";
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};
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};
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};
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fragment@0 {
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target-path = "/";
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__overlay__ {
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pps: pps@ {
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compatible = "pps-gpio";
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pinctrl-names = "default";
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pinctrl-0 = <&pps_gpios>;
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gpios = <&gpio 18 0>;
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status = "okay";
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};
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};
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};
3737

38-
fragment@1 {
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target = <&gpio>;
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__overlay__ {
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pps_gpios: pps_gpios@ {
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pps_in: pps_in@ {
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function = "gpio";
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input-enable;
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};
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};
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};
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};
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fragment@1 {
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target = <&gpio>;
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__overlay__ {
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pps_gpios: pps_gpios@ {
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pps_in: pps_in@ {
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function = "gpio";
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input-enable;
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};
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};
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};
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};
4949

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fragment@2 {
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target = <&pps_gpios>;
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__dormant__ {
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pps_out: pps_out@ {
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function = "gpio";
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output-enable;
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drive-push-pull;
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bias-disable;
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};
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};
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};
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fragment@2 {
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target = <&pps_gpios>;
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__dormant__ {
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pps_out: pps_out@ {
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function = "gpio";
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output-enable;
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drive-push-pull;
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bias-disable;
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};
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};
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};
6161

62-
fragment@3 {
63-
target = <&pps>;
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pps_echo: __dormant__ {
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echo-gpios = <&gpio 17 0>;
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echo-active-ms = <10>;
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};
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};
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fragment@3 {
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target = <&pps>;
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pps_echo: __dormant__ {
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echo-gpios = <&gpio 17 0>;
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echo-active-ms = <10>;
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};
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};
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70-
__overrides__ {
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/* A very annoying and inelegant pinctrl to pin number LUT */
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pin =
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<&pps>,"reg:0{,=18}",
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<&pps>,"gpios:4{,=18}",
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<&pps_gpios>,"reg:0{,=18}",
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<&pps_in>,"reg:0{,=18}",
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<&pps_in>,"pins{2=gpio2,3=gpio3,4=gpio4,17=gpio17,27=gpio27,22=gpio22,10=gpio10,9=gpio9,11=gpio11,0=gpio0,5=gpio5,6=gpio6,13=gpio13,19=gpio19,26=gpio26,14=gpio14,15=gpio15,18=gpio18,23=gpio23,24=gpio24,25=gpio25,8=gpio8,7=gpio7,1=gpio1,12=gpio12,16=gpio16,20=gpio20,21=gpio21,=gpio18}";
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pull-none = <&pps_in>,"bias-disable?";
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pull-up = <&pps_in>,"bias-pull-up?";
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pull-down = <&pps_in>,"bias-pull-down?";
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schmitt-trigger = <&pps_in>,"input-enable!",<&pps_in>,"input-schmitt-enable?";
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assert-falling-edge = <&pps>,"assert-falling-edge?";
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capture-clear = <&pps>,"capture-clear?";
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echo-pin =
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<&pps_out>,"reg:0{,=17}",
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<&pps_out>,"pins{2=gpio2,3=gpio3,4=gpio4,17=gpio17,27=gpio27,22=gpio22,10=gpio10,9=gpio9,11=gpio11,0=gpio0,5=gpio5,6=gpio6,13=gpio13,19=gpio19,26=gpio26,14=gpio14,15=gpio15,18=gpio18,23=gpio23,24=gpio24,25=gpio25,8=gpio8,7=gpio7,1=gpio1,12=gpio12,16=gpio16,20=gpio20,21=gpio21,=gpio17}",
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<&pps_echo>,"echo-gpios:4{,=17}";
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echo-ms = <&pps_echo>,"echo-active-ms:0";
89-
echo = <0>,"+2+3";
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};
70+
__overrides__ {
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// A very annoying and inelegant pinctrl to pin number LUT
72+
pin =
73+
<&pps>,"reg:0{,=18}",
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<&pps>,"gpios:4{,=18}",
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<&pps_gpios>,"reg:0{,=18}",
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<&pps_in>,"reg:0{,=18}",
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<&pps_in>,"pins{2=gpio2,3=gpio3,4=gpio4,17=gpio17,27=gpio27,22=gpio22,10=gpio10,9=gpio9,11=gpio11,0=gpio0,5=gpio5,6=gpio6,13=gpio13,19=gpio19,26=gpio26,14=gpio14,15=gpio15,18=gpio18,23=gpio23,24=gpio24,25=gpio25,8=gpio8,7=gpio7,1=gpio1,12=gpio12,16=gpio16,20=gpio20,21=gpio21,=gpio18}";
78+
pull-none = <&pps_in>,"bias-disable?";
79+
pull-up = <&pps_in>,"bias-pull-up?";
80+
pull-down = <&pps_in>,"bias-pull-down?";
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schmitt-trigger = <&pps_in>,"input-enable!",<&pps_in>,"input-schmitt-enable?";
82+
assert-falling-edge = <&pps>,"assert-falling-edge?";
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capture-clear = <&pps>,"capture-clear?";
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echo-pin =
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<&pps_out>,"reg:0{,=17}",
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<&pps_out>,"pins{2=gpio2,3=gpio3,4=gpio4,17=gpio17,27=gpio27,22=gpio22,10=gpio10,9=gpio9,11=gpio11,0=gpio0,5=gpio5,6=gpio6,13=gpio13,19=gpio19,26=gpio26,14=gpio14,15=gpio15,18=gpio18,23=gpio23,24=gpio24,25=gpio25,8=gpio8,7=gpio7,1=gpio1,12=gpio12,16=gpio16,20=gpio20,21=gpio21,=gpio17}",
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<&pps_echo>,"echo-gpios:4{,=17}";
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echo-ms = <&pps_echo>,"echo-active-ms:0";
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echo = <0>,"+2+3";
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};
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};

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