75 lines
1.7 KiB
YAML
75 lines
1.7 KiB
YAML
# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
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%YAML 1.2
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---
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$id: http://devicetree.org/schemas/iio/proximity/ams,as3935.yaml#
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$schema: http://devicetree.org/meta-schemas/core.yaml#
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title: Austrian Microsystems AS3935 Franklin lightning sensor
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maintainers:
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- Matt Ranostay <matt.ranostay@konsulko.com>
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description:
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This lightning distance sensor uses an I2C or SPI interface. The
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binding currently only covers the SPI option.
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properties:
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compatible:
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const: ams,as3935
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reg:
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maxItems: 1
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spi-max-frequency:
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maximum: 2000000
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spi-cpha: true
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interrupts:
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maxItems: 1
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ams,tuning-capacitor-pf:
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$ref: /schemas/types.yaml#/definitions/uint32
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description:
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Calibration tuning capacitor stepping value. This will require using
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the calibration data from the manufacturer.
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minimum: 0
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maximum: 120
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ams,nflwdth:
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$ref: /schemas/types.yaml#/definitions/uint32
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description:
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Set the noise and watchdog threshold register on startup. This will
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need to set according to the noise from the MCU board, and possibly
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the local environment. Refer to the datasheet for the threshold settings.
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required:
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- compatible
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- reg
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- spi-cpha
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- interrupts
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allOf:
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- $ref: /schemas/spi/spi-peripheral-props.yaml#
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unevaluatedProperties: false
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examples:
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- |
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spi {
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#address-cells = <1>;
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#size-cells = <0>;
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lightning@0 {
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compatible = "ams,as3935";
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reg = <0>;
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spi-max-frequency = <400000>;
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spi-cpha;
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interrupt-parent = <&gpio1>;
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interrupts = <16 1>;
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ams,tuning-capacitor-pf = <80>;
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ams,nflwdth = <0x44>;
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};
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};
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...
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