blob: 2ee6080deac7c6c09a09299adf42298b82b85719 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
|
# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
%YAML 1.2
---
$id: http://devicetree.org/schemas/iio/amplifiers/adi,hmc425a.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
title: Analog Devices HMC425A and similar Digital Step Attenuators
maintainers:
- Michael Hennerich <michael.hennerich@analog.com>
description: |
Digital Step Attenuator IIO devices with gpio interface.
Offer various frequency and attenuation ranges.
HMC425A 0.5 dB LSB GaAs MMIC 6-BIT DIGITAL POSITIVE CONTROL ATTENUATOR, 2.2 - 8.0 GHz
https://www.analog.com/media/en/technical-documentation/data-sheets/hmc425A.pdf
HMC540S 1 dB LSB Silicon MMIC 4-Bit Digital Positive Control Attenuator, 0.1 - 8 GHz
https://www.analog.com/media/en/technical-documentation/data-sheets/hmc540s.pdf
properties:
compatible:
enum:
- adi,hmc425a
- adi,hmc540s
vcc-supply: true
ctrl-gpios:
description:
Must contain an array of 6 GPIO specifiers, referring to the GPIO pins
connected to the control pins V1-V6.
minItems: 6
maxItems: 6
required:
- compatible
- ctrl-gpios
additionalProperties: false
examples:
- |
#include <dt-bindings/gpio/gpio.h>
gpio_hmc425a: hmc425a {
compatible = "adi,hmc425a";
ctrl-gpios = <&gpio 40 GPIO_ACTIVE_HIGH>,
<&gpio 39 GPIO_ACTIVE_HIGH>,
<&gpio 38 GPIO_ACTIVE_HIGH>,
<&gpio 37 GPIO_ACTIVE_HIGH>,
<&gpio 36 GPIO_ACTIVE_HIGH>,
<&gpio 35 GPIO_ACTIVE_HIGH>;
vcc-supply = <&foo>;
};
...
|
