Commit 6632b456 authored by Daniel Matyas's avatar Daniel Matyas Committed by Guenter Roeck
Browse files

dt-bindings: hwmon: Add possible new properties to max31827 bindings 



These modify the corresponding bits in the configuration register.

adi,comp-int is a hardware property, because it affects the behavior
of the interrupt signal and whatever it is connected to.

adi,timeout-enable is a hardware property, because it affects i2c
bus operation.

Signed-off-by: default avatarDaniel Matyas <daniel.matyas@analog.com>
Reviewed-by: default avatarConor Dooley <conor.dooley@microchip.com>
Link: https://lore.kernel.org/r/20230919093456.10592-3-daniel.matyas@analog.com


Signed-off-by: default avatarGuenter Roeck <linux@roeck-us.net>
parent 88245570

Documentation/devicetree/bindings/hwmon/adi,max31827.yaml

+66 −0
Original line number Diff line number Diff line
@@ -32,6 +32,68 @@ properties: 
      Must have values in the interval (1.6V; 3.6V) in order for the device to

      function correctly.



  adi,comp-int:

    description:

      If present interrupt mode is used. If not present comparator mode is used

      (default).

    type: boolean



  adi,alarm-pol:

    description:

      Sets the alarms active state.

            - 0 = active low

            - 1 = active high

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

    enum: [0, 1]



  adi,fault-q:

    description:

      Select how many consecutive temperature faults must occur before

      overtemperature or undertemperature faults are indicated in the

      corresponding status bits.

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

    enum: [1, 2, 4, 8]



  adi,timeout-enable:

    description:

      Enables timeout. Bus timeout resets the I2C-compatible interface when SCL

      is low for more than 30ms (nominal).

    type: boolean



allOf:

  - if:

      properties:

        compatible:

          contains:

            const: adi,max31829



    then:

      properties:

        adi,alarm-pol:

          default: 1



    else:

      properties:

        adi,alarm-pol:

          default: 0



  - if:

      properties:

        compatible:

          contains:

            const: adi,max31827



    then:

      properties:

        adi,fault-q:

          default: 1



    else:

      properties:

        adi,fault-q:

          default: 4





required:

  - compatible

  - reg
@@ -49,6 +111,10 @@ examples: 
            compatible = "adi,max31827";

            reg = <0x42>;

            vref-supply = <&reg_vdd>;

            adi,comp-int;

            adi,alarm-pol = <0>;

            adi,fault-q = <1>;

            adi,timeout-enable;

        };

    };

...