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Add pps-gpio DT overlay

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Parameters:
    gpiopin=<input pin>    // Default 18
This commit is contained in:
Phil Elwell
2015-01-26 09:18:24 +00:00
committed by popcornmix
parent 338c046fb9
commit c5fa77a48c
2 changed files with 35 additions and 0 deletions
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1
arch/arm/boot/dts/Makefile
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@@ -19,6 +19,7 @@ dtb-$(RPI_DT_OVERLAYS) += hifiberry-amp-overlay.dtb
dtb-$(RPI_DT_OVERLAYS) += iqaudio-dac-overlay.dtb
dtb-$(RPI_DT_OVERLAYS) += iqaudio-dacplus-overlay.dtb
dtb-$(RPI_DT_OVERLAYS) += lirc-rpi-overlay.dtb
dtb-$(RPI_DT_OVERLAYS) += pps-gpio-overlay.dtb
dtb-$(RPI_DT_OVERLAYS) += w1-gpio-overlay.dtb
dtb-$(RPI_DT_OVERLAYS) += w1-gpio-pullup-overlay.dtb

34
arch/arm/boot/dts/pps-gpio-overlay.dts Normal file
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@@ -0,0 +1,34 @@
/dts-v1/;
/plugin/;
/ {
compatible = "brcm,bcm2708";
fragment@0 {
target-path = "/";
__overlay__ {
pps: pps {
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 {
brcm,pins = <18>;
brcm,function = <0>; // in
brcm,pull = <0>; // off
};
};
};
__overrides__ {
gpiopin = <&pps>,"gpios:4",
<&pps_pins>,"brcm,pins:0";
};
};