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# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
# Copyright 2024 Analog Devices Inc.
# Copyright 2024 BayLibre, SAS.
%YAML 1.2
---
$id: http://devicetree.org/schemas/iio/adc/adi,ad4030.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
title: Analog Devices AD4030 and AD4630 ADC families
maintainers:
- Michael Hennerich <michael.hennerich@analog.com>
- Nuno Sa <nuno.sa@analog.com>
description: |
Analog Devices AD4030 single channel and AD4630/AD4632 dual channel precision
SAR ADC families
* https://www.analog.com/media/en/technical-documentation/data-sheets/ad4030-24-4032-24.pdf
* https://www.analog.com/media/en/technical-documentation/data-sheets/ad4630-24_ad4632-24.pdf
* https://www.analog.com/media/en/technical-documentation/data-sheets/ad4630-16-4632-16.pdf
properties:
compatible:
enum:
- adi,ad4030-24
- adi,ad4032-24
- adi,ad4630-16
- adi,ad4630-24
- adi,ad4632-16
- adi,ad4632-24
reg:
maxItems: 1
spi-max-frequency:
maximum: 102040816
spi-rx-bus-width:
enum: [1, 2, 4]
vdd-5v-supply: true
vdd-1v8-supply: true
vio-supply: true
ref-supply:
description:
Optional External unbuffered reference. Used when refin-supply is not
connected.
refin-supply:
description:
Internal buffered Reference. Used when ref-supply is not connected.
cnv-gpios:
description:
The Convert Input (CNV). It initiates the sampling conversions.
maxItems: 1
reset-gpios:
description:
The Reset Input (/RST). Used for asynchronous device reset.
maxItems: 1
interrupts:
description:
The BUSY pin is used to signal that the conversions results are available
to be transferred when in SPI Clocking Mode. This nodes should be
connected to an interrupt that is triggered when the BUSY line goes low.
maxItems: 1
interrupt-names:
const: busy
required:
- compatible
- reg
- vdd-5v-supply
- vdd-1v8-supply
- vio-supply
- cnv-gpios
oneOf:
- required:
- ref-supply
- required:
- refin-supply
unevaluatedProperties: false
examples:
- |
#include <dt-bindings/gpio/gpio.h>
spi {
#address-cells = <1>;
#size-cells = <0>;
adc@0 {
compatible = "adi,ad4030-24";
reg = <0>;
spi-max-frequency = <80000000>;
vdd-5v-supply = <&supply_5V>;
vdd-1v8-supply = <&supply_1_8V>;
vio-supply = <&supply_1_8V>;
ref-supply = <&supply_5V>;
cnv-gpios = <&gpio0 0 GPIO_ACTIVE_HIGH>;
reset-gpios = <&gpio0 1 GPIO_ACTIVE_LOW>;
};
};
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