126 lines
2.6 KiB
YAML
126 lines
2.6 KiB
YAML
# SPDX-License-Identifier: GPL-2.0
|
|
%YAML 1.2
|
|
---
|
|
$id: http://devicetree.org/schemas/iio/adc/adi,ad7768-1.yaml#
|
|
$schema: http://devicetree.org/meta-schemas/core.yaml#
|
|
|
|
title: Analog Devices AD7768-1 ADC device driver
|
|
|
|
maintainers:
|
|
- Michael Hennerich <michael.hennerich@analog.com>
|
|
|
|
description: |
|
|
Datasheet at:
|
|
https://www.analog.com/media/en/technical-documentation/data-sheets/ad7768-1.pdf
|
|
|
|
properties:
|
|
compatible:
|
|
const: adi,ad7768-1
|
|
|
|
reg:
|
|
maxItems: 1
|
|
|
|
clocks:
|
|
maxItems: 1
|
|
|
|
clock-names:
|
|
const: mclk
|
|
|
|
interrupts:
|
|
maxItems: 1
|
|
|
|
'#address-cells':
|
|
const: 1
|
|
|
|
'#size-cells':
|
|
const: 0
|
|
|
|
vref-supply:
|
|
description:
|
|
ADC reference voltage supply
|
|
|
|
adi,sync-in-gpios:
|
|
maxItems: 1
|
|
description:
|
|
Enables synchronization of multiple devices that require simultaneous
|
|
sampling. A pulse is always required if the configuration is changed
|
|
in any way, for example if the filter decimation rate changes.
|
|
As the line is active low, it should be marked GPIO_ACTIVE_LOW.
|
|
|
|
reset-gpios:
|
|
maxItems: 1
|
|
|
|
spi-cpol: true
|
|
|
|
spi-cpha: true
|
|
|
|
"#io-channel-cells":
|
|
const: 1
|
|
|
|
required:
|
|
- compatible
|
|
- reg
|
|
- clocks
|
|
- clock-names
|
|
- vref-supply
|
|
- spi-cpol
|
|
- spi-cpha
|
|
- adi,sync-in-gpios
|
|
|
|
patternProperties:
|
|
"^channel@([0-9]|1[0-5])$":
|
|
type: object
|
|
description: |
|
|
Represents the external channels which are connected to the device.
|
|
|
|
properties:
|
|
reg:
|
|
maxItems: 1
|
|
description: |
|
|
The channel number.
|
|
|
|
label:
|
|
description: |
|
|
Unique name to identify which channel this is.
|
|
required:
|
|
- reg
|
|
additionalProperties: false
|
|
|
|
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 = "adi,ad7768-1";
|
|
reg = <0>;
|
|
spi-max-frequency = <2000000>;
|
|
spi-cpol;
|
|
spi-cpha;
|
|
vref-supply = <&adc_vref>;
|
|
interrupts = <25 IRQ_TYPE_EDGE_RISING>;
|
|
interrupt-parent = <&gpio>;
|
|
adi,sync-in-gpios = <&gpio 22 GPIO_ACTIVE_LOW>;
|
|
reset-gpios = <&gpio 27 GPIO_ACTIVE_LOW>;
|
|
clocks = <&ad7768_mclk>;
|
|
clock-names = "mclk";
|
|
|
|
#address-cells = <1>;
|
|
#size-cells = <0>;
|
|
|
|
channel@0 {
|
|
reg = <0>;
|
|
label = "channel_0";
|
|
};
|
|
};
|
|
};
|
|
...
|