linux-kernel - Re: [PATCH] dt-bindings: hwmon: lm87: convert to YAML

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Date:   Wed, 25 Oct 2023 14:41:43 +0200
From:   Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
To:     Li peiyu <579lpy@...il.com>, jdelvare@...e.com, linux@...ck-us.net,
        robh+dt@...nel.org, krzysztof.kozlowski+dt@...aro.org,
        conor+dt@...nel.org
Cc:     linux-hwmon@...r.kernel.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH] dt-bindings: hwmon: lm87: convert to YAML

On 25/10/2023 13:00, Li peiyu wrote:
> Convert the lm87 hwmon sensor bindings to DT schema
> 
> Signed-off-by: Li peiyu <579lpy@...il.com>
> ---

Missing proper patch versioning (git format-patch -v2), missing
changelog, this is not a v1.


>  .../devicetree/bindings/hwmon/lm87.txt        | 30 ----------
>  .../devicetree/bindings/hwmon/lm87.yaml       | 59 +++++++++++++++++++

I don't see my comment addressed.

This is a friendly reminder during the review process.

It seems my previous comments were not fully addressed. Maybe my
feedback got lost between the quotes, maybe you just forgot to apply it.
Please go back to the previous discussion and either implement all
requested changes or keep discussing them.


>  2 files changed, 59 insertions(+), 30 deletions(-)
>  delete mode 100644 Documentation/devicetree/bindings/hwmon/lm87.txt
>  create mode 100644 Documentation/devicetree/bindings/hwmon/lm87.yaml
> 
> diff --git a/Documentation/devicetree/bindings/hwmon/lm87.txt b/Documentation/devicetree/bindings/hwmon/lm87.txt
> deleted file mode 100644
> index 758ff398b67b..000000000000
> --- a/Documentation/devicetree/bindings/hwmon/lm87.txt
> +++ /dev/null
> @@ -1,30 +0,0 @@
> -*LM87 hwmon sensor.
> -
> -Required properties:
> -- compatible: Should be
> -	"ti,lm87"
> -
> -- reg: I2C address
> -
> -optional properties:
> -- has-temp3: This configures pins 18 and 19 to be used as a second
> -             remote temperature sensing channel. By default the pins
> -             are configured as voltage input pins in0 and in5.
> -
> -- has-in6: When set, pin 5 is configured to be used as voltage input
> -           in6. Otherwise the pin is set as FAN1 input.
> -
> -- has-in7: When set, pin 6 is configured to be used as voltage input
> -           in7. Otherwise the pin is set as FAN2 input.
> -
> -- vcc-supply: a Phandle for the regulator supplying power, can be
> -              configured to measure 5.0V power supply. Default is 3.3V.
> -
> -Example:
> -
> -lm87@2e {
> -	compatible = "ti,lm87";
> -	reg = <0x2e>;
> -	has-temp3;
> -	vcc-supply = <&reg_5v0>;
> -};
> diff --git a/Documentation/devicetree/bindings/hwmon/lm87.yaml b/Documentation/devicetree/bindings/hwmon/lm87.yaml
> new file mode 100644
> index 000000000000..54d6ef6700ef
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/hwmon/lm87.yaml
> @@ -0,0 +1,59 @@
> +# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/hwmon/lm87.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: LM87 hwmon sensor
> +
> +maintainers:
> +  - Jean Delvare <jdelvare@...e.com>
> +  - Guenter Roeck <linux@...ck-us.net>
> +
> +properties:
> +  compatible:
> +    const: ti,lm87
> +
> +  reg:
> +    maxItems: 1
> +
> +  has-temp3:

It does not look like you tested the bindings, at least after quick
look. Please run `make dt_binding_check` (see
Documentation/devicetree/bindings/writing-schema.rst for instructions).
Maybe you need to update your dtschema and yamllint.

> +    description: |
> +      This configures pins 18 and 19 to be used as a second remote
> +      temperature sensing channel. By default the pins are configured
> +      as voltage input pins in0 and in5.
> +
> +  has-in6:
> +    description: |
> +      When set, pin 5 is configured to be used as voltage input in6.
> +      Otherwise the pin is set as FAN1 input.
> +
> +  has-in7:
> +    description: |
> +      When set, pin 6 is configured to be used as voltage input in7.
> +      Otherwise the pin is set as FAN2 input.
> +
> +  vcc-supply:
> +    description: |
> +      a Phandle for the regulator supplying power, can be configured to
> +      measure 5.0V power supply. Default is 3.3V.
> +
> +required:
> +  - compatible
> +  - reg
> +
> +additionalProperties: false
> +
> +examples:
> +  - |
> +    i2c {
> +      #address-cells = <1>;
> +      #size-cells = <0>;
> +
> +      lm87@2e {

Node names should be generic. See also an explanation and list of
examples (not exhaustive) in DT specification:
https://devicetree-specification.readthedocs.io/en/latest/chapter2-devicetree-basics.html#generic-names-recommendation


> +        compatible = "ti,lm87";
> +        reg = <0x2e>;
> +        has-temp3;
> +	vcc-supply = <&reg_5v0>;

Messed indentation. Use 4 spaces for example indentation.



Best regards,
Krzysztof