projects / thirdparty / u-boot.git / blame
| Commit | Line | Data |
|---|---|---|
| 53633a89 TR |
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. | |
| 93743d24 TR |
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 | ||
| 53633a89 TR |
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 | ||
| 24 | ||
| 25 | properties: | |
| 26 | compatible: | |
| 27 | enum: | |
| 93743d24 | 28 | - adi,adrf5740 |
| 53633a89 TR |
29 | - adi,hmc425a |
| 30 | - adi,hmc540s | |
| 31 | ||
| 32 | vcc-supply: true | |
| 33 | ||
| 34 | ctrl-gpios: | |
| 35 | description: | |
| 36 | Must contain an array of 6 GPIO specifiers, referring to the GPIO pins | |
| 37 | connected to the control pins V1-V6. | |
| 38 | minItems: 6 | |
| 39 | maxItems: 6 | |
| 40 | ||
| 41 | required: | |
| 42 | - compatible | |
| 43 | - ctrl-gpios | |
| 44 | ||
| 45 | additionalProperties: false | |
| 46 | ||
| 47 | examples: | |
| 48 | - | | |
| 49 | #include <dt-bindings/gpio/gpio.h> | |
| 50 | gpio_hmc425a: hmc425a { | |
| 51 | compatible = "adi,hmc425a"; | |
| 52 | ctrl-gpios = <&gpio 40 GPIO_ACTIVE_HIGH>, | |
| 53 | <&gpio 39 GPIO_ACTIVE_HIGH>, | |
| 54 | <&gpio 38 GPIO_ACTIVE_HIGH>, | |
| 55 | <&gpio 37 GPIO_ACTIVE_HIGH>, | |
| 56 | <&gpio 36 GPIO_ACTIVE_HIGH>, | |
| 57 | <&gpio 35 GPIO_ACTIVE_HIGH>; | |
| 58 | vcc-supply = <&foo>; | |
| 59 | }; | |
| 60 | ... |