linux-kernel - Re: [PATCH 1/3] dt-bindings: hwmon: Add maxim max31790 driver bindings

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Date: Tue, 26 Mar 2024 17:26:16 +0700
From: Chanh Nguyen <chanh@...eremail.onmicrosoft.com>
To: Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>,
 Chanh Nguyen <chanh@...amperecomputing.com>, 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>, Justin Ledford
 <justinledford@...gle.com>, devicetree@...r.kernel.org,
 linux-hwmon@...r.kernel.org, linux-kernel@...r.kernel.org,
 OpenBMC Maillist <openbmc@...ts.ozlabs.org>,
 Open Source Submission <patches@...erecomputing.com>
Cc: Phong Vo <phong@...amperecomputing.com>,
 Thang Nguyen <thang@...amperecomputing.com>,
 Quan Nguyen <quan@...amperecomputing.com>
Subject: Re: [PATCH 1/3] dt-bindings: hwmon: Add maxim max31790 driver
 bindings



On 25/03/2024 15:32, Krzysztof Kozlowski wrote:
> On 22/03/2024 10:53, Chanh Nguyen wrote:
>>>>>
>>>>
>>>> Hi Krzysztof,
>>>> I have not yet understood your comment here. Please help give more
>>>> details for my missing! Thank Krzysztof!
>>>
>>> I expect many more properties of a fan controller. Resources (clocks,
>>> PWMs, supplies) and FAN specific properties.
>>>
>>
>> Hi Krzysztof,
>>
>> I'm creating a base binding document for the max31790 driver. I'm basing
>> it on the drivers/hwmon/max31790.c. Currently, the max31790.c driver has
> 
> Binding should be based on device (e.g. its datasheet), not the driver.
> 

Thank Krzysztof,
I'm reading the writing-bindings.rst and I got it for now. I'll make 
complete binding in patch v2.

I am very pleased to hear your comments.

>> not yet implemented other properties, such as clocks, fan-supply, pwms,
>> etc. So I just introduced the "compatible" and "reg" properties.
>>
>> In the near future, if any other properties are necessary, I think we
>> will implement them in drivers/hwmon/max31790.c then update this binding
>> document.
> 
> Please instead read:
> Documentation/devicetree/bindings/writing-bindings.rst
> 
>>
>> I look at other binding documents, I also see something similar. They
>> just introduce the "compatible" and "reg" properties.
>>
>> https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git/tree/Documentation/devicetree/bindings/hwmon/adi,max31760.yaml
> 
> Maybe these devices are similar, maybe not. This should not be excuse to
> come with really incomplete binding.
> 
> ...
> 
>> I think "fan-controller" is a good node name. Do you think so?
>>
> 
> Yes.
> 
> Best regards,
> Krzysztof
>