1# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) 2%YAML 1.2 3--- 4$id: http://devicetree.org/schemas/gnss/gnss-common.yaml# 5$schema: http://devicetree.org/meta-schemas/core.yaml# 6 7title: Common Properties for Global Navigation Satellite Systems (GNSS) 8 receiver devices 9 10maintainers: 11 - Johan Hovold <johan@kernel.org> 12 13description: | 14 This document defines device tree properties common to Global Navigation 15 Satellite System receivers. 16 17properties: 18 $nodename: 19 pattern: "^gnss(@.*)?$" 20 21 lna-supply: 22 description: A separate regulator supplying power for the Low Noise 23 Amplifier (LNA). This is an amplifier connected between the GNSS 24 device and the receiver antenna. 25 26 enable-gpios: 27 description: A GPIO line that will enable the GNSS receiver when 28 asserted. If this line is active low, the GPIO phandle should 29 consequently be tagged with the GPIO_ACTIVE_LOW flag so the operating 30 system can rely on asserting the line to enable the GNSS device. 31 maxItems: 1 32 33 timepulse-gpios: 34 description: Timepulse signal 35 maxItems: 1 36 37additionalProperties: true 38 39examples: 40 - | 41 #include <dt-bindings/gpio/gpio.h> 42 serial { 43 gnss { 44 compatible = "u-blox,neo-8"; 45 vcc-supply = <&gnss_reg>; 46 timepulse-gpios = <&gpio0 16 GPIO_ACTIVE_HIGH>; 47 current-speed = <4800>; 48 }; 49 }; 50