156 lines
3.2 KiB
YAML
156 lines
3.2 KiB
YAML
# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
|
|
%YAML 1.2
|
|
---
|
|
$id: http://devicetree.org/schemas/iio/adc/ti,ads1119.yaml#
|
|
$schema: http://devicetree.org/meta-schemas/core.yaml#
|
|
|
|
title: Texas Instruments ADS1119 ADC
|
|
|
|
maintainers:
|
|
- João Paulo Gonçalves <jpaulo.silvagoncalves@gmail.com>
|
|
|
|
description:
|
|
The TI ADS1119 is a precision 16-bit ADC over I2C that offers single-ended and
|
|
differential measurements using a multiplexed input. It features a programmable
|
|
gain, a programmable sample rate, an internal oscillator and voltage reference,
|
|
and a 50/60Hz rejection filter.
|
|
|
|
properties:
|
|
compatible:
|
|
const: ti,ads1119
|
|
|
|
reg:
|
|
maxItems: 1
|
|
|
|
interrupts:
|
|
maxItems: 1
|
|
|
|
reset-gpios:
|
|
maxItems: 1
|
|
|
|
avdd-supply: true
|
|
dvdd-supply: true
|
|
|
|
vref-supply:
|
|
description:
|
|
ADC external reference voltage (VREF).
|
|
|
|
"#address-cells":
|
|
const: 1
|
|
|
|
"#size-cells":
|
|
const: 0
|
|
|
|
"#io-channel-cells":
|
|
const: 1
|
|
|
|
required:
|
|
- compatible
|
|
- reg
|
|
- "#address-cells"
|
|
- "#size-cells"
|
|
- avdd-supply
|
|
- dvdd-supply
|
|
|
|
patternProperties:
|
|
"^channel@([0-6])$":
|
|
$ref: adc.yaml
|
|
type: object
|
|
properties:
|
|
reg:
|
|
minimum: 0
|
|
maximum: 6
|
|
|
|
diff-channels:
|
|
description:
|
|
Differential input channels AIN0-AIN1, AIN2-AIN3 and AIN1-AIN2.
|
|
oneOf:
|
|
- items:
|
|
- const: 0
|
|
- const: 1
|
|
- items:
|
|
- const: 2
|
|
- const: 3
|
|
- items:
|
|
- const: 1
|
|
- const: 2
|
|
|
|
single-channel:
|
|
description:
|
|
Single-ended input channels AIN0, AIN1, AIN2 and AIN3.
|
|
minimum: 0
|
|
maximum: 3
|
|
|
|
oneOf:
|
|
- required:
|
|
- diff-channels
|
|
- required:
|
|
- single-channel
|
|
|
|
required:
|
|
- reg
|
|
|
|
unevaluatedProperties: false
|
|
|
|
additionalProperties: false
|
|
|
|
examples:
|
|
- |
|
|
|
|
#include <dt-bindings/gpio/gpio.h>
|
|
#include <dt-bindings/interrupt-controller/irq.h>
|
|
|
|
i2c {
|
|
#address-cells = <1>;
|
|
#size-cells = <0>;
|
|
|
|
adc@40 {
|
|
compatible = "ti,ads1119";
|
|
reg = <0x40>;
|
|
interrupt-parent = <&gpio1>;
|
|
interrupts = <25 IRQ_TYPE_EDGE_FALLING>;
|
|
reset-gpios = <&gpio1 10 GPIO_ACTIVE_LOW>;
|
|
avdd-supply = <®_avdd_ads1119>;
|
|
dvdd-supply = <®_dvdd_ads1119>;
|
|
vref-supply = <®_vref_ads1119>;
|
|
#address-cells = <1>;
|
|
#size-cells = <0>;
|
|
#io-channel-cells = <1>;
|
|
|
|
channel@0 {
|
|
reg = <0>;
|
|
single-channel = <0>;
|
|
};
|
|
|
|
channel@1 {
|
|
reg = <1>;
|
|
diff-channels = <0 1>;
|
|
};
|
|
|
|
channel@2 {
|
|
reg = <2>;
|
|
single-channel = <3>;
|
|
};
|
|
|
|
channel@3 {
|
|
reg = <3>;
|
|
single-channel = <1>;
|
|
};
|
|
|
|
channel@4 {
|
|
reg = <4>;
|
|
single-channel = <2>;
|
|
};
|
|
|
|
channel@5 {
|
|
reg = <5>;
|
|
diff-channels = <1 2>;
|
|
};
|
|
|
|
channel@6 {
|
|
reg = <6>;
|
|
diff-channels = <2 3>;
|
|
};
|
|
};
|
|
};
|