Re: [PATCH 8/8] dt-bindings: hwmon: allow specifying channels for tmp421

[Guenter Roeck <linux@roeck-us.net>]

On 9/7/21 6:46 AM, Krzysztof Adamski wrote:
> Add binding description for the per temperature channel configuration
> like labels and n-factor.
> 
> Signed-off-by: Krzysztof Adamski <krzysztof.adamski@nokia.com>

Up to Rob to decide, but it seems to me that can be squashed with the other
dt patch in the series (which on its own doesn't really add much value).

Guenter

> ---
>   .../devicetree/bindings/hwmon/tmp421.yaml     | 66 +++++++++++++++++++
>   1 file changed, 66 insertions(+)
> 
> diff --git a/Documentation/devicetree/bindings/hwmon/tmp421.yaml b/Documentation/devicetree/bindings/hwmon/tmp421.yaml
> index 53940e146ee6..56085fdf1b57 100644
> --- a/Documentation/devicetree/bindings/hwmon/tmp421.yaml
> +++ b/Documentation/devicetree/bindings/hwmon/tmp421.yaml
> @@ -24,12 +24,49 @@ properties:
>     reg:
>       maxItems: 1
>   
> +  '#address-cells':
> +    const: 1
> +
> +  '#size-cells':
> +    const: 0
> +
>   required:
>     - compatible
>     - reg
>   
>   additionalProperties: false
>   
> +patternProperties:
> +  "^input@([0-4])$":
> +    type: object
> +    description: |
> +      Represents channels of the device and their specific configuration.
> +
> +    properties:
> +      reg:
> +        description: |
> +          The channel number. 0 is local channel, 1-4 are remote channels
> +        items:
> +          minimum: 0
> +          maximum: 4
> +
> +      label:
> +        description: |
> +          A descriptive name for this channel, like "ambient" or "psu".
> +
> +      n-factor:
> +        description: |
> +          The value (two's complement) to be programmed in the channel specific N correction register.
> +          For remote channels only.
> +        items:
> +          minimum: 0
> +          maximum: 1
> +
> +    required:
> +      - reg
> +
> +    additionalProperties: false
> +
>   examples:
>     - |
>       i2c {
> @@ -41,3 +78,32 @@ examples:
>           reg = <0x4c>;
>         };
>       };
> +  - |
> +    i2c {
> +      #address-cells = <1>;
> +      #size-cells = <0>;
> +
> +      sensor@4c {
> +        compatible = "ti,tmp422";
> +        reg = <0x4c>;
> +        #address-cells = <1>;
> +        #size-cells = <0>;
> +
> +        input@0 {
> +          reg = <0x0>;
> +          n-factor = <0x1>;
> +          label = "local";
> +        };
> +
> +        input@1 {
> +          reg = <0x1>;
> +          n-factor = <0x0>;
> +          label = "somelabel";
> +        };
> +
> +        input@2 {
> +          reg = <0x2>;
> +          status = "disabled";
> +        };
> +      };
> +    };
>