linux-kernel - Re: [PATCH 2/2] dt-bindings: hwmon: add renesas,isl28022

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Message-ID: <778263e2-78f0-a679-e981-c8a7147028c6@linaro.org>
Date:   Wed, 26 Jul 2023 21:05:37 +0200
From:   Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
To:     Guenter Roeck <linux@...ck-us.net>,
        Carsten Spieß <mail@...sten-spiess.de>,
        Jean Delvare <jdelvare@...e.com>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Conor Dooley <conor+dt@...nel.org>,
        Geert Uytterhoeven <geert+renesas@...der.be>,
        Magnus Damm <magnus.damm@...il.com>
Cc:     linux-hwmon@...r.kernel.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org, linux-renesas-soc@...r.kernel.org
Subject: Re: [PATCH 2/2] dt-bindings: hwmon: add renesas,isl28022

On 26/07/2023 20:59, Guenter Roeck wrote:
> On 7/26/23 11:27, Krzysztof Kozlowski wrote:
>> On 26/07/2023 20:19, Guenter Roeck wrote:
>>>>
>>>>> +    enum: [1, 2, 4, 8]
>>>>> +
>>>>> +  average:
>>>>> +    description: |
>>>>> +      Number of samples to be used to report voltage, current and power values.
>>>>> +      defaults to <0> when not set
>>>>> +    enum: [0, 1, 2, 4, 8, 16, 32, 64, 128]
>>>>
>>>> I am sure hwmon has some property for this. Are you sure it is called
>>>> "average"?
>>>>
>>>
>>> Something with samples. adi,power-sample-average is similar. Others
>>> use average-samples, qcom,avg-samples, touchscreen-average-samples.
>>
>> So probably it's a time to come with something generic, e.g.:
>> average-samples in some hwmon.yaml
>>
> 
> Maybe, but that is going to take a lot of time. Many configuration options
> of hardware monitoring chips (such as the thermal sensor type, the ideality
> factor of a thermal diode, or the number of pulses per revolution reported
> by fans) are actually properties of the connected device, and Rob has made
> clear that he expects such properties to be associated with the actual
> device (fan, thermal sensor, etc). 

Sure, we can go then with usual vendor like property, so:
renesas,average-samples


Best regards,
Krzysztof