4f0964f70f
This is documented what is currently the case. There are a number of things that could be added, but I don't feel the binding elements are obvious enough to document without a driver implementation to verify they are good choices. These include * Range * Regulators, both input and potentially output (if the loop being driven is ever described). I've listed Lars and myself as maintainers of the binding, but if anyone else wants to be added they would be most welcome! Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com> Cc: Lars-Peter Clausen <lars@metafoo.de> Reviewed-by: Rob Herring <robh@kernel.org> Acked-by: Nuno Sá <nuno.sa@analog.com> Link: https://lore.kernel.org/r/20210627163244.1090296-2-jic23@kernel.org
52 lines
1.1 KiB
YAML
52 lines
1.1 KiB
YAML
# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
|
|
%YAML 1.2
|
|
---
|
|
$id: http://devicetree.org/schemas/iio/dac/adi,ad5421.yaml#
|
|
$schema: http://devicetree.org/meta-schemas/core.yaml#
|
|
|
|
title: Analog Devices AD5421 DAC
|
|
|
|
maintainers:
|
|
- Lars-Peter Clausen <lars@metafoo.de>
|
|
- Jonathan Cameron <jic23@kernel.org>
|
|
|
|
description: |
|
|
AD5421 is designed for us in loop-powered, 4 mA to 20 mA smart transmitter
|
|
applications. It provides a 16-bit DAC, current amplifier, voltage regulator
|
|
to drive the loop and a voltage reference.
|
|
|
|
properties:
|
|
compatible:
|
|
const: adi,ad5421
|
|
|
|
reg:
|
|
maxItems: 1
|
|
|
|
interrupts:
|
|
maxItems: 1
|
|
description: Fault signal.
|
|
|
|
spi-max-frequency: true
|
|
|
|
required:
|
|
- compatible
|
|
- reg
|
|
|
|
additionalProperties: false
|
|
|
|
examples:
|
|
- |
|
|
#include <dt-bindings/interrupt-controller/irq.h>
|
|
spi {
|
|
#address-cells = <1>;
|
|
#size-cells = <0>;
|
|
|
|
dac@0 {
|
|
compatible = "adi,ad5421";
|
|
reg = <0>;
|
|
spi-max-frequency = <30000000>;
|
|
interrupts = <55 IRQ_TYPE_LEVEL_HIGH>;
|
|
};
|
|
};
|
|
...
|