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dt-bindings: gnss: Convert UBlox Neo-6M binding to a schema

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The UBlox Neo 6M is supported by Linux thanks to its device tree
binding.

Now that we have the DT validation in place, let's convert the device
tree bindings for that driver over to a YAML schema.

Cc: Johan Hovold <johan@kernel.org>
Signed-off-by: Maxime Ripard <maxime@cerno.tech>
Link: https://lore.kernel.org/r/20210901091852.479202-22-maxime@cerno.tech
Signed-off-by: Rob Herring <robh@kernel.org>
This commit is contained in:
Maxime Ripard 2021-09-01 11:18:21 +02:00 committed by Rob Herring
parent ddf6cc9a72
commit caa80275c6
2 changed files with 62 additions and 45 deletions
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62
Documentation/devicetree/bindings/gnss/u-blox,neo-6m.yaml Normal file
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# SPDX-License-Identifier: GPL-2.0
%YAML 1.2
---
$id: http://devicetree.org/schemas/gnss/u-blox,neo-6m.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
title: U-blox GNSS Receiver Device Tree Bindings
maintainers:
- Johan Hovold <johan@kernel.org>
description: >
The U-blox GNSS receivers can use UART, DDC (I2C), SPI and USB interfaces.
properties:
compatible:
enum:
- u-blox,neo-6m
- u-blox,neo-8
- u-blox,neo-m8
reg:
description: >
The DDC Slave Address, SPI chip select address, the number of the USB hub
port or the USB host-controller port to which this device is attached,
depending on the bus used. Required for the DDC, SPI or USB busses.
vcc-supply:
description: >
Main voltage regulator
timepulse-gpios:
maxItems: 1
description: >
Time pulse GPIO
u-blox,extint-gpios:
maxItems: 1
description: >
GPIO connected to the "external interrupt" input pin
v-bckp-supply:
description: >
Backup voltage regulator
current-speed: true
required:
- compatible
- vcc-supply
additionalProperties: false
examples:
- |
serial {
gnss {
compatible = "u-blox,neo-8";
v-bckp-supply = <&gnss_v_bckp_reg>;
vcc-supply = <&gnss_vcc_reg>;
};
};

45
Documentation/devicetree/bindings/gnss/u-blox.txt
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u-blox GNSS Receiver DT binding
The u-blox GNSS receivers can use UART, DDC (I2C), SPI and USB interfaces.
Please see Documentation/devicetree/bindings/gnss/gnss.txt for generic
properties.
Required properties:
- compatible : Must be one of
"u-blox,neo-6m"
"u-blox,neo-8"
"u-blox,neo-m8"
- vcc-supply : Main voltage regulator
Required properties (DDC):
- reg : DDC (I2C) slave address
Required properties (SPI):
- reg : SPI chip select address
Required properties (USB):
- reg : Number of the USB hub port or the USB host-controller port
to which this device is attached
Optional properties:
- timepulse-gpios : Time pulse GPIO
- u-blox,extint-gpios : GPIO connected to the "external interrupt" input pin
- v-bckp-supply : Backup voltage regulator
Example:
serial@1234 {
compatible = "ns16550a";
gnss {
compatible = "u-blox,neo-8";
v-bckp-supply = <&gnss_v_bckp_reg>;
vcc-supply = <&gnss_vcc_reg>;
};
};