| Tom Rini | 53633a8 | 2024-02-29 12:33:36 -0500 | [diff] [blame] | 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 | current-speed: |
| 39 | description: The baudrate in bits per second of the device as it comes |
| 40 | online, current active speed. |
| 41 | $ref: /schemas/types.yaml#/definitions/uint32 |
| 42 | |
| 43 | additionalProperties: true |
| 44 | |
| 45 | examples: |
| 46 | - | |
| 47 | #include <dt-bindings/gpio/gpio.h> |
| 48 | serial { |
| 49 | gnss { |
| 50 | compatible = "u-blox,neo-8"; |
| 51 | vcc-supply = <&gnss_reg>; |
| 52 | timepulse-gpios = <&gpio0 16 GPIO_ACTIVE_HIGH>; |
| 53 | current-speed = <4800>; |
| 54 | }; |
| 55 | }; |