| # SPDX-License-Identifier: GPL-2.0 |
| %YAML 1.2 |
| --- |
| $id: http://devicetree.org/schemas/iio/adc/adi,ad7768-1.yaml# |
| $schema: http://devicetree.org/meta-schemas/core.yaml# |
| |
| title: Analog Devices AD7768-1 ADC device driver |
| |
| maintainers: |
| - Michael Hennerich <michael.hennerich@analog.com> |
| |
| description: | |
| Datasheet at: |
| https://www.analog.com/media/en/technical-documentation/data-sheets/ad7768-1.pdf |
| |
| properties: |
| compatible: |
| const: adi,ad7768-1 |
| |
| reg: |
| maxItems: 1 |
| |
| clocks: |
| maxItems: 1 |
| |
| clock-names: |
| const: mclk |
| |
| interrupts: |
| maxItems: 1 |
| |
| '#address-cells': |
| const: 1 |
| |
| '#size-cells': |
| const: 0 |
| |
| vref-supply: |
| description: |
| ADC reference voltage supply |
| |
| adi,sync-in-gpios: |
| maxItems: 1 |
| description: |
| Enables synchronization of multiple devices that require simultaneous |
| sampling. A pulse is always required if the configuration is changed |
| in any way, for example if the filter decimation rate changes. |
| As the line is active low, it should be marked GPIO_ACTIVE_LOW. |
| |
| reset-gpios: |
| maxItems: 1 |
| |
| spi-max-frequency: true |
| |
| spi-cpol: true |
| |
| spi-cpha: true |
| |
| "#io-channel-cells": |
| const: 1 |
| |
| required: |
| - compatible |
| - reg |
| - clocks |
| - clock-names |
| - vref-supply |
| - spi-cpol |
| - spi-cpha |
| - adi,sync-in-gpios |
| |
| patternProperties: |
| "^channel@([0-9]|1[0-5])$": |
| 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 |
| |
| additionalProperties: 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"; |
| }; |
| }; |
| }; |
| ... |
