# 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-name:
            pattern: "^BUCK([1-2])$"
            description: |
              BUCK2 present in DA9122, DA9220, DA9131, DA9132 only

          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

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>;
          };
        };
      };
    };
...