| Tom Rini | 53633a8 | 2024-02-29 12:33:36 -0500 | [diff] [blame] | 1 | # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) |
| 2 | %YAML 1.2 |
| 3 | --- |
| 4 | $id: http://devicetree.org/schemas/iio/amplifiers/adi,hmc425a.yaml# |
| 5 | $schema: http://devicetree.org/meta-schemas/core.yaml# |
| 6 | |
| 7 | title: Analog Devices HMC425A and similar Digital Step Attenuators |
| 8 | |
| 9 | maintainers: |
| 10 | - Michael Hennerich <michael.hennerich@analog.com> |
| 11 | |
| 12 | description: | |
| 13 | Digital Step Attenuator IIO devices with gpio interface. |
| 14 | Offer various frequency and attenuation ranges. |
| Tom Rini | 93743d2 | 2024-04-01 09:08:13 -0400 | [diff] [blame] | 15 | ADRF5750 2 dB LSB, 4-Bit, Silicon Digital Attenuator, 10 MHz to 60 GHz |
| 16 | https://www.analog.com/media/en/technical-documentation/data-sheets/adrf5740.pdf |
| 17 | |
| Tom Rini | 53633a8 | 2024-02-29 12:33:36 -0500 | [diff] [blame] | 18 | HMC425A 0.5 dB LSB GaAs MMIC 6-BIT DIGITAL POSITIVE CONTROL ATTENUATOR, 2.2 - 8.0 GHz |
| 19 | https://www.analog.com/media/en/technical-documentation/data-sheets/hmc425A.pdf |
| 20 | |
| 21 | HMC540S 1 dB LSB Silicon MMIC 4-Bit Digital Positive Control Attenuator, 0.1 - 8 GHz |
| 22 | https://www.analog.com/media/en/technical-documentation/data-sheets/hmc540s.pdf |
| 23 | |
| Tom Rini | 6bb92fc | 2024-05-20 09:54:58 -0600 | [diff] [blame] | 24 | LTC6373 is a 3-Bit precision instrumentation amplifier with fully differential outputs |
| 25 | https://www.analog.com/media/en/technical-documentation/data-sheets/ltc6373.pdf |
| Tom Rini | 53633a8 | 2024-02-29 12:33:36 -0500 | [diff] [blame] | 26 | |
| 27 | properties: |
| 28 | compatible: |
| 29 | enum: |
| Tom Rini | 93743d2 | 2024-04-01 09:08:13 -0400 | [diff] [blame] | 30 | - adi,adrf5740 |
| Tom Rini | 53633a8 | 2024-02-29 12:33:36 -0500 | [diff] [blame] | 31 | - adi,hmc425a |
| 32 | - adi,hmc540s |
| Tom Rini | 6bb92fc | 2024-05-20 09:54:58 -0600 | [diff] [blame] | 33 | - adi,ltc6373 |
| Tom Rini | 53633a8 | 2024-02-29 12:33:36 -0500 | [diff] [blame] | 34 | |
| 35 | vcc-supply: true |
| 36 | |
| 37 | ctrl-gpios: |
| 38 | description: |
| Tom Rini | 6bb92fc | 2024-05-20 09:54:58 -0600 | [diff] [blame] | 39 | Must contain an array of GPIO specifiers, referring to the GPIO pins |
| 40 | connected to the control pins. |
| 41 | ADRF5740 - 4 GPIO connected to D2-D5 |
| 42 | HMC540S - 4 GPIO connected to V1-V4 |
| 43 | HMC425A - 6 GPIO connected to V1-V6 |
| 44 | LTC6373 - 3 GPIO connected to A0-A2 |
| 45 | minItems: 1 |
| Tom Rini | 53633a8 | 2024-02-29 12:33:36 -0500 | [diff] [blame] | 46 | maxItems: 6 |
| 47 | |
| Tom Rini | 6bb92fc | 2024-05-20 09:54:58 -0600 | [diff] [blame] | 48 | allOf: |
| 49 | - if: |
| 50 | properties: |
| 51 | compatible: |
| 52 | contains: |
| 53 | const: adi,hmc425a |
| 54 | then: |
| 55 | properties: |
| 56 | ctrl-gpios: |
| 57 | minItems: 6 |
| 58 | maxItems: 6 |
| 59 | - if: |
| 60 | properties: |
| 61 | compatible: |
| 62 | contains: |
| 63 | anyOf: |
| 64 | - const: adi,adrf5740 |
| 65 | - const: adi,hmc540s |
| 66 | then: |
| 67 | properties: |
| 68 | ctrl-gpios: |
| 69 | minItems: 4 |
| 70 | maxItems: 4 |
| 71 | - if: |
| 72 | properties: |
| 73 | compatible: |
| 74 | contains: |
| 75 | const: adi,ltc6373 |
| 76 | then: |
| 77 | properties: |
| 78 | ctrl-gpios: |
| 79 | minItems: 3 |
| 80 | maxItems: 3 |
| 81 | |
| Tom Rini | 53633a8 | 2024-02-29 12:33:36 -0500 | [diff] [blame] | 82 | required: |
| 83 | - compatible |
| 84 | - ctrl-gpios |
| 85 | |
| 86 | additionalProperties: false |
| 87 | |
| 88 | examples: |
| 89 | - | |
| 90 | #include <dt-bindings/gpio/gpio.h> |
| 91 | gpio_hmc425a: hmc425a { |
| 92 | compatible = "adi,hmc425a"; |
| 93 | ctrl-gpios = <&gpio 40 GPIO_ACTIVE_HIGH>, |
| 94 | <&gpio 39 GPIO_ACTIVE_HIGH>, |
| 95 | <&gpio 38 GPIO_ACTIVE_HIGH>, |
| 96 | <&gpio 37 GPIO_ACTIVE_HIGH>, |
| 97 | <&gpio 36 GPIO_ACTIVE_HIGH>, |
| 98 | <&gpio 35 GPIO_ACTIVE_HIGH>; |
| 99 | vcc-supply = <&foo>; |
| 100 | }; |
| 101 | ... |