Commit bf1fdafd authored by Eliav Farber's avatar Eliav Farber Committed by Guenter Roeck
Browse files

dt-bindings: hwmon: (mr75203) add coefficient properties for the thermal equation 



Add optional temperature coefficient properties:
 *) moortec,ts-coeff-g
 *) moortec,ts-coeff-h
 *) moortec,ts-coeff-cal5
 *) moortec,ts-coeff-j
If defined they shall be used instead of defaults.

The coefficients were added to device tree on top of the series property
(which can be used to select between series 5 and series 6), because
coefficients can vary between product and product, and code defaults might
not be accurate enough.

Signed-off-by: default avatarEliav Farber <farbere@amazon.com>
Reviewed-by: default avatarRob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20220908152449.35457-19-farbere@amazon.com


Signed-off-by: default avatarGuenter Roeck <linux@roeck-us.net>
parent 3b12ca79

Documentation/devicetree/bindings/hwmon/moortec,mr75203.yaml

+37 −0
Original line number Diff line number Diff line
@@ -100,6 +100,41 @@ properties: 
    default: 5

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



  moortec,ts-coeff-g:

    description:

      G coefficient for temperature equation.

      Default for series 5 = 60000

      Default for series 6 = 57400

    multipleOf: 1000

    minimum: 1000

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



  moortec,ts-coeff-h:

    description:

      H coefficient for temperature equation.

      Default for series 5 = 200000

      Default for series 6 = 249400

    multipleOf: 1000

    minimum: 1000

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



  moortec,ts-coeff-cal5:

    description:

      cal5 coefficient for temperature equation.

      Default for series 5 = 4094

      Default for series 6 = 4096

    minimum: 1

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



  moortec,ts-coeff-j:

    description:

      J coefficient for temperature equation.

      Default for series 5 = -100

      Default for series 6 = 0

    multipleOf: 1000

    maximum: 0

    $ref: /schemas/types.yaml#/definitions/int32



required:

  - compatible

  - reg
@@ -123,5 +158,7 @@ examples: 
        resets = <&rcu0 0x40 7>;

        moortec,vm-active-channels = /bits/ 8 <0x10 0x05>;

        moortec,vm-pre-scaler-x2 = /bits/ 8 <5 6 20>;

        moortec,ts-coeff-g = <61400>;

        moortec,ts-coeff-h = <253700>;

        #thermal-sensor-cells = <1>;

    };