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# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
%YAML 1.2
---
$id: http://devicetree.org/schemas/regulator/adi,adp5055-regulator.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
title: Analog Devices ADP5055 Triple Buck Regulator
maintainers:
- Alexis Czezar Torreno <alexisczezar.torreno@analog.com>
description: |
The ADP5055 combines three high performance buck regulator. The device enables
direct connection to high input voltages up to 18 V with no preregulators.
https://www.analog.com/media/en/technical-documentation/data-sheets/adp5055.pdf
properties:
compatible:
enum:
- adi,adp5055
reg:
enum:
- 0x70
- 0x71
adi,tset-us:
description:
Setting time used by the device. This is changed via soldering specific
resistor values on the CFG2 pin.
enum: [2600, 20800]
default: 2600
adi,ocp-blanking:
description:
If present, overcurrent protection (OCP) blanking for all regulator is on.
type: boolean
adi,delay-power-good:
description:
Configures delay timer of the power good (PWRGD) pin. Delay is based on
Tset which can be 2.6 ms or 20.8 ms.
type: boolean
'#address-cells':
const: 1
'#size-cells':
const: 0
patternProperties:
'^buck[0-2]$':
type: object
$ref: regulator.yaml#
unevaluatedProperties: false
properties:
enable-gpios:
maxItems: 1
description:
GPIO specifier to enable the GPIO control for each regulator. The
driver supports two modes of enable, hardware only (GPIOs) or software
only (Registers). Pure hardware enabling requires each regulator to
contain this property. If at least one regulator does not have this,
the driver automatically switches to software only mode.
adi,dvs-limit-upper-microvolt:
description:
Configure the allowable upper side limit of the voltage output of each
regulator in microvolt. Relative to the default Vref trimming value.
Vref = 600 mV. Voltages are in 12 mV steps, value is autoadjusted.
Vout_high = Vref_trim + dvs-limit-upper.
minimum: 12000
maximum: 192000
default: 192000
adi,dvs-limit-lower-microvolt:
description:
Configure the allowable lower side limit of the voltage output of each
regulator in microvolt. Relative to the default Vref trimming value.
Vref = 600 mV. Voltages are in 12 mV steps, value is autoadjusted.
Vout_low = Vref_trim + dvs-limit-lower.
minimum: -190500
maximum: -10500
default: -190500
adi,fast-transient:
description:
Configures the fast transient sensitivity for each regulator.
"none" - No fast transient.
"3G_1.5%" - 1.5% window with 3*350uA/V
"5G_1.5%" - 1.5% window with 5*350uA/V
"5G_2.5%" - 2.5% window with 5*350uA/V
enum: [none, 3G_1.5%, 5G_1.5%, 5G_2.5%]
default: 5G_2.5%
adi,mask-power-good:
description:
If present, masks individual regulators PWRGD signal to the external
PWRGD hardware pin.
type: boolean
required:
- regulator-name
required:
- compatible
- reg
additionalProperties: false
examples:
- |
#include <dt-bindings/gpio/gpio.h>
i2c {
#address-cells = <1>;
#size-cells = <0>;
regulator@70 {
compatible = "adi,adp5055";
reg = <0x70>;
#address-cells = <1>;
#size-cells = <0>;
adi,tset-us = <2600>;
adi,ocp-blanking;
adi,delay-power-good;
buck0 {
regulator-name = "buck0";
enable-gpios = <&gpio 17 GPIO_ACTIVE_HIGH>;
adi,dvs-limit-upper-microvolt = <192000>;
adi,dvs-limit-lower-microvolt = <(-190500)>;
adi,fast-transient = "5G_2.5%";
adi,mask-power-good;
};
buck1 {
regulator-name = "buck1";
enable-gpios = <&gpio 18 GPIO_ACTIVE_HIGH>;
adi,dvs-limit-upper-microvolt = <192000>;
adi,dvs-limit-lower-microvolt = <(-190500)>;
adi,fast-transient = "5G_2.5%";
adi,mask-power-good;
};
buck2 {
regulator-name = "buck2";
enable-gpios = <&gpio 19 GPIO_ACTIVE_HIGH>;
adi,dvs-limit-upper-microvolt = <192000>;
adi,dvs-limit-lower-microvolt = <(-190500)>;
adi,fast-transient = "5G_2.5%";
adi,mask-power-good;
};
};
};
|
