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
7 title: Common Properties for Global Navigation Satellite Systems (GNSS)
8 receiver devices
9
10 maintainers:
11 - Johan Hovold <johan@kernel.org>
12
13 description: |
14 This document defines device tree properties common to Global Navigation
15 Satellite System receivers.
16
17 properties:
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: When a timepulse is provided to the GNSS device using a
35 GPIO line, this is used.
36 maxItems: 1
37
38 additionalProperties: true
39
40 examples:
41 - |
42 #include <dt-bindings/gpio/gpio.h>
43 serial {
44 gnss {
45 compatible = "u-blox,neo-8";
46 vcc-supply = <&gnss_reg>;
47 timepulse-gpios = <&gpio0 16 GPIO_ACTIVE_HIGH>;
48 current-speed = <4800>;
49 };
50 };
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