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# 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/frequency/adi,admfm2000.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
title: ADMFM2000 Dual Microwave Down Converter
maintainers:
- Kim Seer Paller <kimseer.paller@analog.com>
description:
Dual microwave down converter module with input RF and LO frequency ranges
from 0.5 to 32 GHz and an output IF frequency range from 0.1 to 8 GHz.
It consists of a LNA, mixer, IF filter, DSA, and IF amplifier for each down
conversion path.
properties:
compatible:
enum:
- adi,admfm2000
'#address-cells':
const: 1
'#size-cells':
const: 0
patternProperties:
"^channel@[0-1]$":
type: object
description: Represents a channel of the device.
additionalProperties: false
properties:
reg:
description:
The channel number.
minimum: 0
maximum: 1
adi,mixer-mode:
description:
Enable mixer mode for the channel. It downconverts RF between 5 GHz
and 32 GHz to IF between 0.5 GHz and 8 GHz. If not present, the channel
is in direct IF mode which bypasses the mixer and downconverts RF
between 2 GHz and 8 GHz to IF between 0.5 GHz and 8 GHz.
type: boolean
switch-gpios:
description: |
GPIOs to select the RF path for the channel. The same state of CTRL-A
and CTRL-B GPIOs is not permitted.
CTRL-A CTRL-B CH1 Status CH2 Status
1 0 Direct IF mode Mixer mode
0 1 Mixer mode Direct IF mode
items:
- description: CTRL-A GPIO
- description: CTRL-B GPIO
attenuation-gpios:
description: |
Choice of attenuation:
DSA-V4 DSA-V3 DSA-V2 DSA-V1 DSA-V0
1 1 1 1 1 0 dB
1 1 1 1 0 -1 dB
1 1 1 0 1 -2 dB
1 1 0 1 1 -4 dB
1 0 1 1 1 -8 dB
0 1 1 1 1 -16 dB
0 0 0 0 0 -31 dB
items:
- description: DSA-V0 GPIO
- description: DSA-V1 GPIO
- description: DSA-V2 GPIO
- description: DSA-V3 GPIO
- description: DSA-V4 GPIO
required:
- reg
- switch-gpios
- attenuation-gpios
required:
- compatible
additionalProperties: false
examples:
- |
#include <dt-bindings/gpio/gpio.h>
converter {
compatible = "adi,admfm2000";
#address-cells = <1>;
#size-cells = <0>;
channel@0 {
reg = <0>;
switch-gpios = <&gpio 1 GPIO_ACTIVE_LOW>,
<&gpio 2 GPIO_ACTIVE_HIGH>;
attenuation-gpios = <&gpio 17 GPIO_ACTIVE_LOW>,
<&gpio 22 GPIO_ACTIVE_LOW>,
<&gpio 23 GPIO_ACTIVE_LOW>,
<&gpio 24 GPIO_ACTIVE_LOW>,
<&gpio 25 GPIO_ACTIVE_LOW>;
};
channel@1 {
reg = <1>;
adi,mixer-mode;
switch-gpios = <&gpio 3 GPIO_ACTIVE_LOW>,
<&gpio 4 GPIO_ACTIVE_HIGH>;
attenuation-gpios = <&gpio 0 GPIO_ACTIVE_LOW>,
<&gpio 5 GPIO_ACTIVE_LOW>,
<&gpio 6 GPIO_ACTIVE_LOW>,
<&gpio 16 GPIO_ACTIVE_LOW>,
<&gpio 26 GPIO_ACTIVE_LOW>;
};
};
...
|
