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