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# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
# Copyright 2022 Analog Devices Inc.
%YAML 1.2
---
$id: http://devicetree.org/schemas/iio/adc/adi,max11410.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
title: Analog Devices MAX11410 ADC device driver
maintainers:
- Ibrahim Tilki <Ibrahim.Tilki@analog.com>
description: |
Bindings for the Analog Devices MAX11410 ADC device. Datasheet can be
found here:
https://datasheets.maximintegrated.com/en/ds/MAX11410.pdf
properties:
compatible:
enum:
- adi,max11410
reg:
maxItems: 1
interrupts:
minItems: 1
maxItems: 2
interrupt-names:
description: Name of the gpio pin of max11410 used for IRQ
minItems: 1
items:
- enum: [gpio0, gpio1]
- const: gpio1
'#address-cells':
const: 1
'#size-cells':
const: 0
avdd-supply:
description: Optional avdd supply. Used as reference when no explicit reference supplied.
vref0p-supply:
description: vref0p supply can be used as reference for conversion.
vref1p-supply:
description: vref1p supply can be used as reference for conversion.
vref2p-supply:
description: vref2p supply can be used as reference for conversion.
vref0n-supply:
description: vref0n supply can be used as reference for conversion.
vref1n-supply:
description: vref1n supply can be used as reference for conversion.
vref2n-supply:
description: vref2n supply can be used as reference for conversion.
spi-max-frequency:
maximum: 8000000
patternProperties:
"^channel(@[0-9])?$":
$ref: adc.yaml
type: object
description: Represents the external channels which are connected to the ADC.
properties:
reg:
description: The channel number in single-ended mode.
minimum: 0
maximum: 9
adi,reference:
description: |
Select the reference source to use when converting on
the specific channel. Valid values are:
0: VREF0P/VREF0N
1: VREF1P/VREF1N
2: VREF2P/VREF2N
3: AVDD/AGND
4: VREF0P/AGND
5: VREF1P/AGND
6: VREF2P/AGND
If this field is left empty, AVDD/AGND is selected.
$ref: /schemas/types.yaml#/definitions/uint32
enum: [0, 1, 2, 3, 4, 5, 6]
default: 3
adi,input-mode:
description: |
Select signal path of input channels. Valid values are:
0: Buffered, low-power, unity-gain path (default)
1: Bypass path
2: PGA path
$ref: /schemas/types.yaml#/definitions/uint32
enum: [0, 1, 2]
default: 0
diff-channels: true
bipolar: true
settling-time-us: true
adi,buffered-vrefp:
description: Enable buffered mode for positive reference.
type: boolean
adi,buffered-vrefn:
description: Enable buffered mode for negative reference.
type: boolean
required:
- reg
additionalProperties: false
required:
- compatible
- reg
allOf:
- $ref: /schemas/spi/spi-peripheral-props.yaml#
unevaluatedProperties: false
examples:
- |
#include <dt-bindings/interrupt-controller/irq.h>
spi {
#address-cells = <1>;
#size-cells = <0>;
adc@0 {
reg = <0>;
compatible = "adi,max11410";
spi-max-frequency = <8000000>;
interrupt-parent = <&gpio>;
interrupts = <25 IRQ_TYPE_EDGE_FALLING>;
interrupt-names = "gpio1";
avdd-supply = <&adc_avdd>;
vref1p-supply = <&adc_vref1p>;
vref1n-supply = <&adc_vref1n>;
#address-cells = <1>;
#size-cells = <0>;
channel@0 {
reg = <0>;
};
channel@1 {
reg = <1>;
diff-channels = <2 3>;
adi,reference = <1>;
bipolar;
settling-time-us = <100000>;
};
channel@2 {
reg = <2>;
diff-channels = <7 9>;
adi,reference = <5>;
adi,input-mode = <2>;
settling-time-us = <50000>;
};
};
};
|
