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# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
# Copyright 2019 Analog Devices Inc.
%YAML 1.2
---
$id: http://devicetree.org/schemas/iio/adc/adi,ad7192.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
title: Analog Devices AD7192 ADC device driver
maintainers:
- Michael Hennerich <michael.hennerich@analog.com>
description: |
Bindings for the Analog Devices AD7192 ADC device. Datasheet can be
found here:
https://www.analog.com/media/en/technical-documentation/data-sheets/AD7192.pdf
properties:
compatible:
enum:
- adi,ad7190
- adi,ad7192
- adi,ad7193
- adi,ad7195
reg:
maxItems: 1
spi-cpol: true
spi-cpha: true
clocks:
maxItems: 1
description: phandle to the master clock (mclk)
clock-names:
items:
- const: mclk
interrupts:
maxItems: 1
dvdd-supply:
description: DVdd voltage supply
avdd-supply:
description: AVdd voltage supply
adi,rejection-60-Hz-enable:
description: |
This bit enables a notch at 60 Hz when the first notch of the sinc
filter is at 50 Hz. When REJ60 is set, a filter notch is placed at
60 Hz when the sinc filter first notch is at 50 Hz. This allows
simultaneous 50 Hz/ 60 Hz rejection.
type: boolean
adi,refin2-pins-enable:
description: |
External reference applied between the P1/REFIN2(+) and P0/REFIN2(−) pins.
type: boolean
adi,buffer-enable:
description: |
Enables the buffer on the analog inputs. If cleared, the analog inputs
are unbuffered, lowering the power consumption of the device. If this
bit is set, the analog inputs are buffered, allowing the user to place
source impedances on the front end without contributing gain errors to
the system.
type: boolean
adi,burnout-currents-enable:
description: |
When this bit is set to 1, the 500 nA current sources in the signal
path are enabled. When BURN = 0, the burnout currents are disabled.
The burnout currents can be enabled only when the buffer is active
and when chop is disabled.
type: boolean
bipolar:
description: see Documentation/devicetree/bindings/iio/adc/adc.yaml
type: boolean
required:
- compatible
- reg
- clocks
- clock-names
- interrupts
- dvdd-supply
- avdd-supply
- spi-cpol
- spi-cpha
allOf:
- $ref: /schemas/spi/spi-peripheral-props.yaml#
unevaluatedProperties: false
examples:
- |
spi0 {
#address-cells = <1>;
#size-cells = <0>;
adc@0 {
compatible = "adi,ad7192";
reg = <0>;
spi-max-frequency = <1000000>;
spi-cpol;
spi-cpha;
clocks = <&ad7192_mclk>;
clock-names = "mclk";
interrupts = <25 0x2>;
interrupt-parent = <&gpio>;
dvdd-supply = <&dvdd>;
avdd-supply = <&avdd>;
adi,refin2-pins-enable;
adi,rejection-60-Hz-enable;
adi,buffer-enable;
adi,burnout-currents-enable;
};
};
|
