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Add dt-bindings for AD4062 family, devices AD4060/AD4062, low-power with monitor capabilities SAR ADCs. Each variant of the family differs in resolution. The device contains two outputs (gp0, gp1). The outputs can be configured for range of options, such as threshold and data ready. The device uses a 2-wire I3C interface. Signed-off-by: Jorge Marques <jorge.marques@analog.com> Reviewed-by: Rob Herring (Arm) <robh@kernel.org> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
121 lines
2.9 KiB
YAML
121 lines
2.9 KiB
YAML
# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
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# Copyright 2025 Analog Devices Inc.
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%YAML 1.2
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---
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$id: http://devicetree.org/schemas/iio/adc/adi,ad4062.yaml#
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$schema: http://devicetree.org/meta-schemas/core.yaml#
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title: Analog Devices AD4062 ADC family device driver
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maintainers:
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- Jorge Marques <jorge.marques@analog.com>
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description: |
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Analog Devices AD4062 Single Channel Precision SAR ADC family
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https://www.analog.com/media/en/technical-documentation/data-sheets/ad4060.pdf
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https://www.analog.com/media/en/technical-documentation/data-sheets/ad4062.pdf
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properties:
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compatible:
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enum:
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- adi,ad4060
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- adi,ad4062
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reg:
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maxItems: 1
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interrupts:
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description:
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Two pins are available that can be configured as either a general purpose
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digital output, device enable signal (used to synchronise other parts of
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the signal chain with ADC sampling), device ready (GP1 only) or various
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interrupt signals. If intended for use as a GPIO or device enable, will not
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present here.
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minItems: 1
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items:
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- description:
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GP0 pin, cannot be configured as DEV_RDY.
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- description:
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GP1 pin, can be configured to any setting.
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interrupt-names:
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minItems: 1
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items:
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- const: gp0
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- const: gp1
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gpio-controller:
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description:
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Marks the device node as a GPIO controller. GPs not listed as interrupts
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are exposed as a GPO.
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'#gpio-cells':
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const: 2
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description:
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The first cell is the GPIO number and the second cell specifies
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GPIO flags, as defined in <dt-bindings/gpio/gpio.h>.
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vdd-supply:
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description: Analog power supply.
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vio-supply:
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description: Digital interface logic power supply.
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ref-supply:
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description:
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Reference voltage to set the ADC full-scale range. If not present,
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vdd-supply is used as the reference voltage.
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required:
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- compatible
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- reg
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- vdd-supply
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- vio-supply
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allOf:
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- $ref: /schemas/i3c/i3c.yaml#
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unevaluatedProperties: false
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examples:
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- |
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#include <dt-bindings/gpio/gpio.h>
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#include <dt-bindings/interrupt-controller/irq.h>
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i3c {
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#address-cells = <3>;
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#size-cells = <0>;
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adc@0,2ee007c0000 {
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reg = <0x0 0x2ee 0x7c0000>;
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vdd-supply = <&vdd>;
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vio-supply = <&vio>;
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ref-supply = <&ref>;
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interrupt-parent = <&gpio>;
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interrupts = <0 0 IRQ_TYPE_EDGE_RISING>,
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<0 1 IRQ_TYPE_EDGE_FALLING>;
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interrupt-names = "gp0", "gp1";
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};
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};
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- |
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#include <dt-bindings/gpio/gpio.h>
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#include <dt-bindings/interrupt-controller/irq.h>
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i3c {
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#address-cells = <3>;
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#size-cells = <0>;
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adc@0,2ee007c0000 {
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reg = <0x0 0x2ee 0x7c0000>;
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vdd-supply = <&vdd>;
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vio-supply = <&vio>;
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ref-supply = <&ref>;
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gpio-controller;
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#gpio-cells = <2>;
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};
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};
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