xref: /freebsd/sys/contrib/device-tree/Bindings/mfd/maxim,max8925.yaml (revision 84943d6f38e936ac3b7a3947ca26eeb27a39f938)

# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
%YAML 1.2
---
$id: http://devicetree.org/schemas/mfd/maxim,max8925.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#

title: MAX8925 PMIC from Maxim Integrated.

maintainers:
  - Lee Jones <lee@kernel.org>

properties:
  compatible:
    const: maxim,max8925

  reg:
    maxItems: 1

  interrupts:
    maxItems: 1

  interrupt-controller: true

  "#interrupt-cells":
    const: 1
    description:
      The cell is the IRQ number

  maxim,tsc-irq:
    description: second interrupt from max8925
    $ref: /schemas/types.yaml#/definitions/uint32

  regulators:
    type: object

    patternProperties:
      "^SDV[1-3]$|^LDO[1-9]$|^LDO1[0-9]$|^LDO20$":
        description: regulator configuration for SDV1-3 and LDO1-20
        $ref: /schemas/regulator/regulator.yaml
        unevaluatedProperties: false

    additionalProperties: false

  backlight:
    type: object
    properties:
      maxim,max8925-dual-string:
        description: set to 1 to support dual string
        $ref: /schemas/types.yaml#/definitions/uint32
        enum: [0, 1]
        default: 0

    additionalProperties: false

  charger:
    type: object
    properties:
      batt-detect:
        description: set to 1 if battery detection via ID pin is supported
        $ref: /schemas/types.yaml#/definitions/uint32
        enum: [0, 1]
        default: 0

      topoff-threshold:
        description: charging current in topoff mode, configures bits 5-6 in CHG_CNTL1
        $ref: /schemas/types.yaml#/definitions/uint32
        minimum: 0
        maximum: 3
        default: 0

      fast-charge:
        description: set charging current in fast mode, configures bits 0-3 in CHG_CNTL1
        $ref: /schemas/types.yaml#/definitions/uint32
        minimum: 0
        maximum: 7
        default: 0

      no-temp-support:
        description: set to 1 if temperature sensing is not supported
        $ref: /schemas/types.yaml#/definitions/uint32
        enum: [0, 1]
        default: 0

      no-insert-detect:
        description: set to 1 if AC detection is not supported
        $ref: /schemas/types.yaml#/definitions/uint32
        enum: [0, 1]
        default: 0

    additionalProperties: false

required:
  - compatible
  - reg
  - interrupts
  - interrupt-controller
  - "#interrupt-cells"
  - regulators

additionalProperties: false

examples:
  - |
    i2c {
        #address-cells = <1>;
        #size-cells = <0>;

        pmic@3c {
            compatible = "maxim,max8925";
            reg = <0x3c>;
            interrupts = <1>;
            interrupt-parent = <&intcmux4>;
            interrupt-controller;
            #interrupt-cells = <1>;
            maxim,tsc-irq = <0>;

            regulators {
                SDV1 {
                    regulator-min-microvolt = <637500>;
                    regulator-max-microvolt = <1425000>;
                    regulator-boot-on;
                    regulator-always-on;
                };

                LDO1 {
                    regulator-min-microvolt = <750000>;
                    regulator-max-microvolt = <3900000>;
                    regulator-boot-on;
                    regulator-always-on;
                };
            };

            backlight {
                maxim,max8925-dual-string = <0>;
            };

            charger {
                batt-detect = <0>;
                topoff-threshold = <1>;
                fast-charge = <7>;
                no-temp-support = <0>;
                no-insert-detect = <0>;
            };
        };
    };