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dt-bindings: iio: amplifiers: add ada4250 doc
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Add device tree bindings for the ADA4250 driver.

Signed-off-by: Antoniu Miclaus <antoniu.miclaus@analog.com>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20220223120112.8067-1-antoniu.miclaus@analog.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
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Antoniu Miclaus authored and Jonathan Cameron committed Feb 27, 2022
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50 changes: 50 additions & 0 deletions Documentation/devicetree/bindings/iio/amplifiers/adi,ada4250.yaml
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# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
%YAML 1.2
---
$id: http://devicetree.org/schemas/iio/amplifiers/adi,ada4250.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#

title: ADA4250 Programmable Gain Instrumentation Amplifier

maintainers:
- Antoniu Miclaus <antoniu.miclaus@analog.com>

description: |
Precision Low Power, 110kHz, 26uA, Programmable Gain Instrumentation Amplifier.
properties:
compatible:
enum:
- adi,ada4250

reg:
maxItems: 1

avdd-supply: true

adi,refbuf-enable:
description:
Enable internal buffer to drive the reference pin.
type: boolean

spi-max-frequency: true

required:
- compatible
- reg
- avdd-supply

additionalProperties: false

examples:
- |
spi {
#address-cells = <1>;
#size-cells = <0>;
amplifier@0 {
compatible = "adi,ada4250";
reg = <0>;
avdd-supply = <&avdd>;
};
};
...

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