Commit f0769121 authored by Slawomir Stepien's avatar Slawomir Stepien Committed by Guenter Roeck
Browse files

dt-bindings: hwmon: Allow specifying channels for lm90 



Add binding description for temperature channels. Currently, support for
label and temperature-offset-millicelsius is implemented.

Signed-off-by: default avatarSlawomir Stepien <slawomir.stepien@nokia.com>
Reviewed-by: default avatarRob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20220525073657.573327-3-sst@poczta.fm


Signed-off-by: default avatarGuenter Roeck <linux@roeck-us.net>
parent d8d5879a

Documentation/devicetree/bindings/hwmon/national,lm90.yaml

+129 −0
Original line number Diff line number Diff line
@@ -51,6 +51,12 @@ properties: 
  "#thermal-sensor-cells":

    const: 1



  '#address-cells':

    const: 1



  '#size-cells':

    const: 0



  vcc-supply:

    description: phandle to the regulator that provides the +VCC supply
@@ -62,6 +68,29 @@ required: 
  - compatible

  - reg



patternProperties:

  "^channel@([0-2])$":

    type: object

    description: Represents channels of the device and their specific configuration.



    properties:

      reg:

        description: The channel number. 0 is local channel, 1-2 are remote channels.

        items:

          minimum: 0

          maximum: 2



      label:

        description: A descriptive name for this channel, like "ambient" or "psu".



      temperature-offset-millicelsius:

        description: Temperature offset to be added to or subtracted from remote temperature measurements.



    required:

      - reg



    additionalProperties: false



allOf:

  - if:

      not:
@@ -78,6 +107,77 @@ allOf: 
      properties:

        ti,extended-range-enable: false



  - if:

      properties:

        compatible:

          contains:

            enum:

              - dallas,max6646

              - dallas,max6647

              - dallas,max6649

              - dallas,max6657

              - dallas,max6658

              - dallas,max6659

              - dallas,max6695

              - dallas,max6696

    then:

      patternProperties:

        "^channel@([0-2])$":

          properties:

            temperature-offset-millicelsius: false



  - if:

      properties:

        compatible:

          contains:

            enum:

              - adi,adt7461

              - adi,adt7461a

              - adi,adt7481

              - onnn,nct1008

    then:

      patternProperties:

        "^channel@([0-2])$":

          properties:

            temperature-offset-millicelsius:

              maximum: 127750



  - if:

      properties:

        compatible:

          contains:

            enum:

              - adi,adm1032

              - dallas,max6680

              - dallas,max6681

              - gmt,g781

              - national,lm86

              - national,lm89

              - national,lm90

              - national,lm99

              - nxp,sa56004

              - winbond,w83l771

    then:

      patternProperties:

        "^channel@([0-2])$":

          properties:

            temperature-offset-millicelsius:

              maximum: 127875



  - if:

      properties:

        compatible:

          contains:

            enum:

              - ti,tmp451

              - ti,tmp461

    then:

      patternProperties:

        "^channel@([0-2])$":

          properties:

            temperature-offset-millicelsius:

              maximum: 127937



additionalProperties: false



examples:
@@ -96,3 +196,32 @@ examples: 
            #thermal-sensor-cells = <1>;

        };

    };

  - |

    i2c {

      #address-cells = <1>;

      #size-cells = <0>;



      sensor@4c {

        compatible = "adi,adt7481";

        reg = <0x4c>;

        #address-cells = <1>;

        #size-cells = <0>;



        channel@0 {

          reg = <0x0>;

          label = "local";

        };



        channel@1 {

          reg = <0x1>;

          label = "front";

          temperature-offset-millicelsius = <4000>;

        };



        channel@2 {

          reg = <0x2>;

          label = "back";

          temperature-offset-millicelsius = <750>;

        };

      };

    };