| Tom Rini | 6bb92fc | 2024-05-20 09:54:58 -0600 | [diff] [blame] | 1 | # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) |
| 2 | # Copyright 2024 Analog Devices Inc. |
| 3 | %YAML 1.2 |
| 4 | --- |
| 5 | $id: http://devicetree.org/schemas/iio/frequency/adi,admfm2000.yaml# |
| 6 | $schema: http://devicetree.org/meta-schemas/core.yaml# |
| 7 | |
| 8 | title: ADMFM2000 Dual Microwave Down Converter |
| 9 | |
| 10 | maintainers: |
| 11 | - Kim Seer Paller <kimseer.paller@analog.com> |
| 12 | |
| 13 | description: |
| 14 | Dual microwave down converter module with input RF and LO frequency ranges |
| 15 | from 0.5 to 32 GHz and an output IF frequency range from 0.1 to 8 GHz. |
| 16 | It consists of a LNA, mixer, IF filter, DSA, and IF amplifier for each down |
| 17 | conversion path. |
| 18 | |
| 19 | properties: |
| 20 | compatible: |
| 21 | enum: |
| 22 | - adi,admfm2000 |
| 23 | |
| 24 | '#address-cells': |
| 25 | const: 1 |
| 26 | |
| 27 | '#size-cells': |
| 28 | const: 0 |
| 29 | |
| 30 | patternProperties: |
| 31 | "^channel@[0-1]$": |
| 32 | type: object |
| 33 | description: Represents a channel of the device. |
| 34 | |
| 35 | additionalProperties: false |
| 36 | |
| 37 | properties: |
| 38 | reg: |
| 39 | description: |
| 40 | The channel number. |
| 41 | minimum: 0 |
| 42 | maximum: 1 |
| 43 | |
| 44 | adi,mixer-mode: |
| 45 | description: |
| 46 | Enable mixer mode for the channel. It downconverts RF between 5 GHz |
| 47 | and 32 GHz to IF between 0.5 GHz and 8 GHz. If not present, the channel |
| 48 | is in direct IF mode which bypasses the mixer and downconverts RF |
| 49 | between 2 GHz and 8 GHz to IF between 0.5 GHz and 8 GHz. |
| 50 | type: boolean |
| 51 | |
| 52 | switch-gpios: |
| 53 | description: | |
| 54 | GPIOs to select the RF path for the channel. The same state of CTRL-A |
| 55 | and CTRL-B GPIOs is not permitted. |
| 56 | CTRL-A CTRL-B CH1 Status CH2 Status |
| 57 | 1 0 Direct IF mode Mixer mode |
| 58 | 0 1 Mixer mode Direct IF mode |
| 59 | |
| 60 | items: |
| 61 | - description: CTRL-A GPIO |
| 62 | - description: CTRL-B GPIO |
| 63 | |
| 64 | attenuation-gpios: |
| 65 | description: | |
| 66 | Choice of attenuation: |
| 67 | DSA-V4 DSA-V3 DSA-V2 DSA-V1 DSA-V0 |
| 68 | 1 1 1 1 1 0 dB |
| 69 | 1 1 1 1 0 -1 dB |
| 70 | 1 1 1 0 1 -2 dB |
| 71 | 1 1 0 1 1 -4 dB |
| 72 | 1 0 1 1 1 -8 dB |
| 73 | 0 1 1 1 1 -16 dB |
| 74 | 0 0 0 0 0 -31 dB |
| 75 | |
| 76 | items: |
| 77 | - description: DSA-V0 GPIO |
| 78 | - description: DSA-V1 GPIO |
| 79 | - description: DSA-V2 GPIO |
| 80 | - description: DSA-V3 GPIO |
| 81 | - description: DSA-V4 GPIO |
| 82 | |
| 83 | required: |
| 84 | - reg |
| 85 | - switch-gpios |
| 86 | - attenuation-gpios |
| 87 | |
| 88 | required: |
| 89 | - compatible |
| 90 | |
| 91 | additionalProperties: false |
| 92 | |
| 93 | examples: |
| 94 | - | |
| 95 | #include <dt-bindings/gpio/gpio.h> |
| 96 | converter { |
| 97 | compatible = "adi,admfm2000"; |
| 98 | |
| 99 | #address-cells = <1>; |
| 100 | #size-cells = <0>; |
| 101 | |
| 102 | channel@0 { |
| 103 | reg = <0>; |
| 104 | switch-gpios = <&gpio 1 GPIO_ACTIVE_LOW>, |
| 105 | <&gpio 2 GPIO_ACTIVE_HIGH>; |
| 106 | |
| 107 | attenuation-gpios = <&gpio 17 GPIO_ACTIVE_LOW>, |
| 108 | <&gpio 22 GPIO_ACTIVE_LOW>, |
| 109 | <&gpio 23 GPIO_ACTIVE_LOW>, |
| 110 | <&gpio 24 GPIO_ACTIVE_LOW>, |
| 111 | <&gpio 25 GPIO_ACTIVE_LOW>; |
| 112 | }; |
| 113 | |
| 114 | channel@1 { |
| 115 | reg = <1>; |
| 116 | adi,mixer-mode; |
| 117 | switch-gpios = <&gpio 3 GPIO_ACTIVE_LOW>, |
| 118 | <&gpio 4 GPIO_ACTIVE_HIGH>; |
| 119 | |
| 120 | attenuation-gpios = <&gpio 0 GPIO_ACTIVE_LOW>, |
| 121 | <&gpio 5 GPIO_ACTIVE_LOW>, |
| 122 | <&gpio 6 GPIO_ACTIVE_LOW>, |
| 123 | <&gpio 16 GPIO_ACTIVE_LOW>, |
| 124 | <&gpio 26 GPIO_ACTIVE_LOW>; |
| 125 | }; |
| 126 | }; |
| 127 | ... |