linux-kernel - Re: [PATCH v2 1/2] dt-bindings: hwmon: Add lltc ltc4286 driver bindings

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Date:   Thu, 26 Oct 2023 15:25:55 +0100
From:   Conor Dooley <conor@...nel.org>
To:     Delphine CC Chiu <Delphine_CC_Chiu@...ynn.com>
Cc:     patrick@...cx.xyz, Jean Delvare <jdelvare@...e.com>,
        Guenter Roeck <linux@...ck-us.net>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Conor Dooley <conor+dt@...nel.org>,
        Jonathan Corbet <corbet@....net>, linux-i2c@...r.kernel.org,
        linux-hwmon@...r.kernel.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org, linux-doc@...r.kernel.org
Subject: Re: [PATCH v2 1/2] dt-bindings: hwmon: Add lltc ltc4286 driver
 bindings

Hey,

On Thu, Oct 26, 2023 at 04:15:11PM +0800, Delphine CC Chiu wrote:
> Add a device tree bindings for ltc4286 driver.

Bindings are for devices, not for drivers.

> 
> Signed-off-by: Delphine CC Chiu <Delphine_CC_Chiu@...ynn.com>
> 
> Changelog:
>   v2 - Revise vrange_select_25p6 to adi,vrange-select-25p6
>      - Add type for adi,vrange-select-25p6
>      - Revise rsense-micro-ohms to shunt-resistor-micro-ohms
> ---
>  .../bindings/hwmon/lltc,ltc4286.yaml          | 50 +++++++++++++++++++
>  MAINTAINERS                                   | 10 ++++
>  2 files changed, 60 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/hwmon/lltc,ltc4286.yaml
> 
> diff --git a/Documentation/devicetree/bindings/hwmon/lltc,ltc4286.yaml b/Documentation/devicetree/bindings/hwmon/lltc,ltc4286.yaml
> new file mode 100644
> index 000000000000..17022de657bb
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/hwmon/lltc,ltc4286.yaml
> @@ -0,0 +1,50 @@
> +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/hwmon/lltc,ltc4286.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: LTC4286 power monitors
> +
> +maintainers:
> +  - Delphine CC Chiu <Delphine_CC_Chiu@...ynn.com>
> +
> +properties:
> +  compatible:
> +    enum:
> +      - lltc,ltc4286
> +      - lltc,ltc4287

I don't recall seeing an answer to Guenter about this ltc4287 device:
https://lore.kernel.org/all/22f6364c-611c-ffb6-451c-9ddc20418d0a@roeck-us.net/

> +
> +  reg:
> +    maxItems: 1
> +
> +  adi,vrange-select-25p6:
> +    description:
> +      This property is a bool parameter to represent the
> +      voltage range is 25.6 or not for this chip.

25.6 what? Volts? microvolts?
What about Guenter's suggestion to name this so that it better matches
the other, similar properties?

Cheers,
Conor.

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