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# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
%YAML 1.2
---
$id: http://devicetree.org/schemas/gnss/gnss-common.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
title: Common Properties for Global Navigation Satellite Systems (GNSS)
receiver devices
maintainers:
- Johan Hovold <johan@kernel.org>
description: |
This document defines device tree properties common to Global Navigation
Satellite System receivers.
properties:
$nodename:
pattern: "^gnss(@.*)?$"
lna-supply:
description: A separate regulator supplying power for the Low Noise
Amplifier (LNA). This is an amplifier connected between the GNSS
device and the receiver antenna.
enable-gpios:
description: A GPIO line that will enable the GNSS receiver when
asserted. If this line is active low, the GPIO phandle should
consequently be tagged with the GPIO_ACTIVE_LOW flag so the operating
system can rely on asserting the line to enable the GNSS device.
maxItems: 1
timepulse-gpios:
description: When a timepulse is provided to the GNSS device using a
GPIO line, this is used.
maxItems: 1
current-speed:
description: The baudrate in bits per second of the device as it comes
online, current active speed.
$ref: /schemas/types.yaml#/definitions/uint32
additionalProperties: true
examples:
- |
#include <dt-bindings/gpio/gpio.h>
serial {
gnss {
compatible = "u-blox,neo-8";
vcc-supply = <&gnss_reg>;
timepulse-gpios = <&gpio0 16 GPIO_ACTIVE_HIGH>;
current-speed = <4800>;
};
};
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