# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
%YAML 1.2
---
$id: http://devicetree.org/schemas/regulator/dlg,da9121.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
title: Dialog Semiconductor DA9121 voltage regulator
maintainers:
- Adam Ward <Adam.Ward.opensource@diasemi.com>
description: |
Dialog Semiconductor DA9121 Single-channel 10A double-phase buck converter
Dialog Semiconductor DA9122 Double-channel 5A single-phase buck converter
Dialog Semiconductor DA9220 Double-channel 3A single-phase buck converter
Dialog Semiconductor DA9217 Single-channel 6A double-phase buck converter
Dialog Semiconductor DA9130 Single-channel 10A double-phase buck converter
Dialog Semiconductor DA9131 Double-channel 5A single-phase buck converter
Dialog Semiconductor DA9132 Double-channel 3A single-phase buck converter
Dialog Semiconductor DA9141 Single-channel 40A quad-phase buck converter
Dialog Semiconductor DA9142 Single-channel 20A double-phase buck converter
Device parameter ranges
The current limits can be set to at/near double the rated current per channel
to allow for transient peaks.
Current limit changes when the output is enabled are not supported, as a
precaution against undefined behaviour.
|----------------------------------------------|
| | range & reset default value |
| Device |------------------------------|
| | microvolt | microamp |
|----------------------------------------------|
| DA9121/DA9130 | Min: 300000 | Min: 7000000 |
| | Max: 1900000 | Max: 20000000 |
|----------------------------------------------|
| DA9121/DA9131 | Min: 300000 | Min: 3500000 |
| | Max: 1900000 | Max: 10000000 |
|----------------------------------------------|
| DA9121/DA9131 | Min: 300000 | Min: 3500000 |
| | Max: 1900000 | Max: 6000000 |
|----------------------------------------------|
| DA9217 | Min: 300000 | Min: 7000000 |
| | Max: 1900000 | Max: 12000000 |
|----------------------------------------------|
| DA9141 | Min: 300000 | Min: 26000000 |
| | Max: 1300000 | Max: 78000000 |
|----------------------------------------------|
| DA9142 | Min: 300000 | Min: 13000000 |
| | Max: 1300000 | Max: 39000000 |
|----------------------------------------------|
properties:
$nodename:
pattern: "pmic@[0-9a-f]{1,2}"
compatible:
enum:
- dlg,da9121
- dlg,da9122
- dlg,da9220
- dlg,da9217
- dlg,da9130
- dlg,da9131
- dlg,da9132
- dlg,da9141
- dlg,da9142
reg:
maxItems: 1
description: Specifies the I2C slave address.
interrupts:
maxItems: 1
description: IRQ line information.
dlg,irq-polling-delay-passive-ms:
minimum: 1000
maximum: 10000
description: |
Specify the polling period, measured in milliseconds, between interrupt status
update checks. Range 1000-10000 ms.
regulators:
type: object
additionalProperties: false
description: |
List of regulators provided by the device
patternProperties:
"^buck([1-2])$":
type: object
$ref: regulator.yaml#
description: |
Properties for a single BUCK regulator
properties:
regulator-initial-mode:
enum: [ 0, 1, 2, 3 ]
description: Defined in include/dt-bindings/regulator/dlg,da9121-regulator.h
enable-gpios:
maxItems: 1
description: Specify a valid GPIO for platform control of the regulator
dlg,ripple-cancel:
$ref: /schemas/types.yaml#/definitions/uint32
enum: [ 0, 1, 2, 3 ]
description: |
Defined in include/dt-bindings/regulator/dlg,da9121-regulator.h
Only present on multi-channel devices (DA9122, DA9220, DA9131, DA9132)
unevaluatedProperties: false
required:
- compatible
- reg
- regulators
allOf:
- if:
properties:
compatible:
not:
contains:
enum:
- dlg,da9122
- dlg,da9131
- dlg,da9132
- dlg,da9220
then:
properties:
regulators:
properties:
buck2: false
additionalProperties: false
examples:
- |
#include <dt-bindings/gpio/gpio.h>
#include <dt-bindings/interrupt-controller/irq.h>
#include <dt-bindings/regulator/dlg,da9121-regulator.h>
i2c {
#address-cells = <1>;
#size-cells = <0>;
pmic@68 {
compatible = "dlg,da9121";
reg = <0x68>;
interrupt-parent = <&gpio6>;
interrupts = <11 IRQ_TYPE_LEVEL_LOW>;
dlg,irq-polling-delay-passive-ms = <2000>;
regulators {
DA9121_BUCK1: buck1 {
regulator-name = "BUCK1";
regulator-min-microvolt = <300000>;
regulator-max-microvolt = <1900000>;
regulator-min-microamp = <7000000>;
regulator-max-microamp = <20000000>;
regulator-boot-on;
regulator-initial-mode = <DA9121_BUCK_MODE_AUTO>;
enable-gpios = <&gpio 1 GPIO_ACTIVE_HIGH>;
};
};
};
};
- |
#include <dt-bindings/gpio/gpio.h>
#include <dt-bindings/interrupt-controller/irq.h>
#include <dt-bindings/regulator/dlg,da9121-regulator.h>
i2c {
#address-cells = <1>;
#size-cells = <0>;
pmic@68 {
compatible = "dlg,da9122";
reg = <0x68>;
interrupt-parent = <&gpio6>;
interrupts = <11 IRQ_TYPE_LEVEL_LOW>;
dlg,irq-polling-delay-passive-ms = <2000>;
regulators {
DA9122_BUCK1: buck1 {
regulator-name = "BUCK1";
regulator-min-microvolt = <300000>;
regulator-max-microvolt = <1900000>;
regulator-min-microamp = <3500000>;
regulator-max-microamp = <10000000>;
regulator-boot-on;
regulator-initial-mode = <DA9121_BUCK_MODE_AUTO>;
enable-gpios = <&gpio6 1 GPIO_ACTIVE_HIGH>;
dlg,ripple-cancel = <DA9121_BUCK_RIPPLE_CANCEL_NONE>;
};
DA9122_BUCK2: buck2 {
regulator-name = "BUCK2";
regulator-min-microvolt = <300000>;
regulator-max-microvolt = <1900000>;
regulator-min-microamp = <3500000>;
regulator-max-microamp = <10000000>;
regulator-boot-on;
regulator-initial-mode = <DA9121_BUCK_MODE_AUTO>;
enable-gpios = <&gpio6 2 GPIO_ACTIVE_HIGH>;
dlg,ripple-cancel = <DA9121_BUCK_RIPPLE_CANCEL_NONE>;
};
};
};
};
...