linux-kernel - Re: [PATCH 1/2] dt-bindings: hwmon: adi,ltc2945: Add binding

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Date:   Thu, 15 Dec 2022 10:42:42 +0100
From:   Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
To:     "Cormier, Jonathan" <jcormier@...ticallink.com>,
        linux-hwmon@...r.kernel.org
Cc:     Jean Delvare <jdelvare@...e.com>,
        Guenter Roeck <linux@...ck-us.net>,
        linux-kernel@...r.kernel.org, devicetree@...r.kernel.org,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Bob Duke <bduke@...ticallink.com>,
        John Pruitt <jpruitt@...ticallink.com>
Subject: Re: [PATCH 1/2] dt-bindings: hwmon: adi,ltc2945: Add binding

On 14/12/2022 23:07, Cormier, Jonathan wrote:

Missing commit msg. Describe hardware.



> Signed-off-by: "Cormier, Jonathan" <jcormier@...ticallink.com>
> ---
>  .../bindings/hwmon/adi,ltc2945.yaml           | 50 +++++++++++++++++++
>  1 file changed, 50 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/hwmon/adi,ltc2945.yaml
> 
> diff --git a/Documentation/devicetree/bindings/hwmon/adi,ltc2945.yaml b/Documentation/devicetree/bindings/hwmon/adi,ltc2945.yaml
> new file mode 100644
> index 000000000000..9ca7a886dec8
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/hwmon/adi,ltc2945.yaml
> @@ -0,0 +1,50 @@
> +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/hwmon/adi,ltc2945.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: Analog Devices LTC2945 wide range i2c power monitor
> +
> +maintainers:
> +  - Guenter Roeck <linux@...ck-us.net>
> +
> +description: |
> +  Analog Devices LTC2945 wide range i2c power monitor over I2C.
> +
> +  https://www.analog.com/media/en/technical-documentation/data-sheets/LTC2945.pdf
> +
> +properties:
> +  compatible:
> +    enum:
> +      - ltc2945

That's not a correct compatible. Missing vendor prefix.

> +
> +  reg:
> +    maxItems: 1
> +
> +  shunt-resistor-micro-ohms:
> +    description:
> +      Shunt resistor value in micro-Ohms
> +    default: 1000
> +
> +required:
> +  - compatible
> +  - reg
> +
> +

Just one blank line.

> +additionalProperties: false
> +
> +examples:
> +  - |
> +    i2c {
> +           #address-cells = <1>;
> +           #size-cells = <0>;

Use 4 spaces for example indentation.

> +
> +           ltc2945_i2c: ltc2945@6e {

Node names should be generic.
https://devicetree-specification.readthedocs.io/en/latest/chapter2-devicetree-basics.html#generic-names-recommendation

> +              compatible = "ltc2945";
> +              reg = <0x6e>;
> +              /* 10 milli-Ohm shunt resistor */
> +              shunt-resistor-micro-ohms = <10000>;
> +           };
> +    };
> +...

Best regards,
Krzysztof