| # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) |
| # Copyright 2024 Analog Devices Inc. |
| %YAML 1.2 |
| --- |
| $id: http://devicetree.org/schemas/iio/adc/adi,ad4851.yaml# |
| $schema: http://devicetree.org/meta-schemas/core.yaml# |
| |
| title: Analog Devices AD485X family |
| |
| maintainers: |
| - Sergiu Cuciurean <sergiu.cuciurean@analog.com> |
| - Dragos Bogdan <dragos.bogdan@analog.com> |
| - Antoniu Miclaus <antoniu.miclaus@analog.com> |
| |
| description: | |
| Analog Devices AD485X fully buffered, 8-channel simultaneous sampling, |
| 16/20-bit, 1 MSPS data acquisition system (DAS) with differential, wide |
| common-mode range inputs. |
| |
| https://www.analog.com/media/en/technical-documentation/data-sheets/ad4855.pdf |
| https://www.analog.com/media/en/technical-documentation/data-sheets/ad4856.pdf |
| https://www.analog.com/media/en/technical-documentation/data-sheets/ad4857.pdf |
| https://www.analog.com/media/en/technical-documentation/data-sheets/ad4858.pdf |
| |
| $ref: /schemas/spi/spi-peripheral-props.yaml# |
| |
| properties: |
| compatible: |
| enum: |
| - adi,ad4851 |
| - adi,ad4852 |
| - adi,ad4853 |
| - adi,ad4854 |
| - adi,ad4855 |
| - adi,ad4856 |
| - adi,ad4857 |
| - adi,ad4858 |
| - adi,ad4858i |
| |
| reg: |
| maxItems: 1 |
| |
| vcc-supply: true |
| |
| vee-supply: true |
| |
| vdd-supply: true |
| |
| vddh-supply: true |
| |
| vddl-supply: true |
| |
| vio-supply: true |
| |
| vrefbuf-supply: true |
| |
| vrefio-supply: true |
| |
| pwms: |
| description: PWM connected to the CNV pin. |
| maxItems: 1 |
| |
| io-backends: |
| maxItems: 1 |
| |
| pd-gpios: |
| maxItems: 1 |
| |
| spi-max-frequency: |
| maximum: 25000000 |
| |
| spi-3wire: true |
| |
| '#address-cells': |
| const: 1 |
| |
| '#size-cells': |
| const: 0 |
| |
| patternProperties: |
| "^channel(@[0-7])?$": |
| $ref: adc.yaml |
| type: object |
| description: Represents the channels which are connected to the ADC. |
| |
| properties: |
| reg: |
| description: |
| The channel number, as specified in the datasheet (from 0 to 7). |
| minimum: 0 |
| maximum: 7 |
| |
| diff-channels: |
| description: |
| Each channel can be configured as a bipolar differential channel. |
| The ADC uses the same positive and negative inputs for this. |
| This property must be specified as 'reg' (or the channel number) for |
| both positive and negative inputs (i.e. diff-channels = <reg reg>). |
| Since the configuration is bipolar differential, the 'bipolar' |
| property is required. |
| items: |
| minimum: 0 |
| maximum: 7 |
| |
| bipolar: true |
| |
| required: |
| - reg |
| |
| additionalProperties: false |
| |
| required: |
| - compatible |
| - reg |
| - vcc-supply |
| - vee-supply |
| - vdd-supply |
| - vio-supply |
| - pwms |
| |
| unevaluatedProperties: false |
| |
| examples: |
| - | |
| spi { |
| #address-cells = <1>; |
| #size-cells = <0>; |
| |
| adc@0{ |
| #address-cells = <1>; |
| #size-cells = <0>; |
| compatible = "adi,ad4858"; |
| reg = <0>; |
| spi-max-frequency = <10000000>; |
| vcc-supply = <&vcc>; |
| vdd-supply = <&vdd>; |
| vee-supply = <&vee>; |
| vddh-supply = <&vddh>; |
| vddl-supply = <&vddl>; |
| vio-supply = <&vio>; |
| pwms = <&pwm_gen 0 0>; |
| io-backends = <&iio_backend>; |
| |
| channel@0 { |
| reg = <0>; |
| diff-channels = <0 0>; |
| bipolar; |
| }; |
| |
| channel@1 { |
| reg = <1>; |
| }; |
| }; |
| }; |
| ... |
