# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
%YAML 1.2
---
$id: http://devicetree.org/schemas/hwmon/pmbus/adi,vt7505.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#

title: Analog Devices MAX16545/MAX16550 and Volterra VT7505 PMBus controllers

maintainers:
  - Sanman Pradhan <psanman@juniper.net>

description: |
  The Analog Devices MAX16545 and MAX16550, and the Volterra VT7505, are PMBus
  controllers that provide input/output voltage, input/output current,
  input power and temperature monitoring over the PMBus interface.
 
  The MAX16545 uses the same programming model as the VT7505.
 
  Datasheets:
  https://www.analog.com/media/en/technical-documentation/data-sheets/max16545b-max16545c.pdf
  https://www.analog.com/media/en/technical-documentation/data-sheets/max16550.pdf

properties:
  compatible:
    oneOf:
      - enum:
          - adi,max16550
          - adi,vt7505
      - items:
          - const: adi,max16545
          - const: adi,vt7505

  reg:
    maxItems: 1

  adi,rload-ohms:
    description:
      Resistance in ohms of the external telemetry load resistor connected
      between the ILOAD current-output pin and ground. This is not a
      current-path shunt resistor; it sets the scaling of the reported input
      current, output current and input power.
    minimum: 1
    maximum: 283383959
    default: 4750

  adi,ocp-severe-filter-us:
    description:
      Deglitch time, in microseconds, applied to the severe
      overcurrent-protection comparator, programmed into the
      MFR_CONFIG[15:14] field. The MAX16550 and VT7505 expose this field.
      On the MAX16545 the severe overcurrent delay is fixed and these bits
      are reserved. If omitted, the existing hardware setting is retained.
    enum: [0, 1, 2, 10]

required:
  - compatible
  - reg

allOf:
  # The severe OCP deglitch filter is fixed on the MAX16545, so the property
  # is only valid for the MAX16550 and VT7505.
  - if:
      properties:
        compatible:
          contains:
            const: adi,max16545
    then:
      properties:
        adi,ocp-severe-filter-us: false

additionalProperties: false

examples:
  - |
    i2c {
        #address-cells = <1>;
        #size-cells = <0>;
 
        regulator@40 {
            compatible = "adi,vt7505";
            reg = <0x40>;
            adi,rload-ohms = <4750>;
            adi,ocp-severe-filter-us = <10>;
        };
    };