Commit e00fe400 authored by Pawel Dembicki's avatar Pawel Dembicki Committed by Guenter Roeck
Browse files

dt-bindings: hwmon: Add bindings for mpq8785 driver 



Add device tree bindings for Monolithic Power Systems MPQ8785, MPM82504
and MPM3695 PMBus-compliant voltage regulators.

These bindings also documents the optional
"mps,vout-fb-divider-ratio-permille" property.

Reviewed-by: default avatarKrzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/r/20250511035701.2607947-2-paweldembicki@gmail.com


Signed-off-by: default avatarPawel Dembicki <paweldembicki@gmail.com>
Signed-off-by: default avatarGuenter Roeck <linux@roeck-us.net>
parent 0d9f596b

Documentation/devicetree/bindings/hwmon/pmbus/mps,mpq8785.yaml

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# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)

%YAML 1.2

---

$id: http://devicetree.org/schemas/hwmon/pmbus/mps,mpq8785.yaml#

$schema: http://devicetree.org/meta-schemas/core.yaml#



title: Monolithic Power Systems Multiphase Voltage Regulators with PMBus



maintainers:

  - Charles Hsu <ythsu0511@gmail.com>



description:

  Monolithic Power Systems digital multiphase voltage regulators with PMBus.



properties:

  compatible:

    enum:

      - mps,mpm3695

      - mps,mpm3695-25

      - mps,mpm82504

      - mps,mpq8785



  reg:

    maxItems: 1



  mps,vout-fb-divider-ratio-permille:

    description:

      The feedback resistor divider ratio, expressed in permille

      (Vfb / Vout * 1000). This value is written to the PMBUS_VOUT_SCALE_LOOP

      register and is required for correct output voltage presentation.

    $ref: /schemas/types.yaml#/definitions/uint32

    minimum: 1

    maximum: 4095

    default: 706



required:

  - compatible

  - reg



allOf:

  - if:

      properties:

        compatible:

          enum:

            - mps,mpm3695

            - mps,mpm82504

    then:

      properties:

        mps,vout-fb-divider-ratio-permille:

          maximum: 1023



  - if:

      properties:

        compatible:

          const: mps,mpq8785

    then:

      properties:

        mps,vout-fb-divider-ratio-permille:

          maximum: 2047



additionalProperties: false



examples:

  - |

    i2c {

      #address-cells = <1>;

      #size-cells = <0>;



      pmic@30 {

        compatible = "mps,mpm82504";

        reg = <0x30>;

        mps,vout-fb-divider-ratio-permille = <600>;

      };

    };

Documentation/devicetree/bindings/trivial-devices.yaml

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@@ -293,8 +293,6 @@ properties: 
          - mps,mp5990

            # Monolithic Power Systems Inc. digital step-down converter mp9941

          - mps,mp9941

            # Monolithic Power Systems Inc. synchronous step-down converter mpq8785

          - mps,mpq8785

            # Temperature sensor with integrated fan control

          - national,lm63

            # Serial Interface ACPI-Compatible Microprocessor System Hardware Monitor