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# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
%YAML 1.2
---
$id: http://devicetree.org/schemas/iio/adc/ti,ads1018.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
title: TI ADS1018/ADS1118 SPI analog to digital converter
maintainers:
- Kurt Borja <kuurtb@gmail.com>
description: |
The ADS1018/ADS1118 is a precision, low-power, 12-bit/16-bit, analog to
digital converter (ADC). It integrates a programmable gain amplifier (PGA),
internal voltage reference, oscillator and high-accuracy temperature sensor.
Datasheets:
- ADS1018: https://www.ti.com/lit/ds/symlink/ads1018.pdf
- ADS1118: https://www.ti.com/lit/ds/symlink/ads1118.pdf
properties:
compatible:
enum:
- ti,ads1018
- ti,ads1118
reg:
maxItems: 1
vdd-supply: true
spi-max-frequency:
maximum: 4000000
spi-cpha: true
interrupts:
description: DOUT/DRDY (Data Out/Data Ready) line.
maxItems: 1
drdy-gpios:
description:
Extra GPIO line connected to DOUT/DRDY (Data Out/Data Ready). This allows
distinguishing between interrupts triggered by the data-ready signal and
interrupts triggered by an SPI transfer.
maxItems: 1
'#io-channel-cells':
const: 1
required:
- compatible
- reg
- vdd-supply
allOf:
- $ref: /schemas/spi/spi-peripheral-props.yaml#
unevaluatedProperties: false
examples:
- |
#include <dt-bindings/interrupt-controller/irq.h>
#include <dt-bindings/gpio/gpio.h>
spi {
#address-cells = <1>;
#size-cells = <0>;
adc@0 {
compatible = "ti,ads1118";
reg = <0>;
spi-max-frequency = <4000000>;
spi-cpha;
vdd-supply = <&vdd_3v3_reg>;
interrupts-extended = <&gpio 14 IRQ_TYPE_EDGE_FALLING>;
drdy-gpios = <&gpio 14 GPIO_ACTIVE_LOW>;
};
};
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