linux-kernel - Re: [PATCH 3/3] dt-bindings: hwmon: max31790: Add pwmout-pin-as-tach-input property

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Date: Mon, 18 Mar 2024 16:48:46 +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 3/3] dt-bindings: hwmon: max31790: Add
 pwmout-pin-as-tach-input property



On 11/03/2024 23:56, Krzysztof Kozlowski wrote:
> On 11/03/2024 12:13, Chanh Nguyen wrote:
>> Add pwmout-pin-as-tach-input property.
> 
> Why is this split from original binding? This does not make much
> sense... Add complete hardware description.
> 

Ok Krzysztof, I will merg the "[PATCH 1/3] dt-bindings: hwmon: Add maxim 
max31790 driver bindings" commit and "[PATCH 3/3] dt-bindings: hwmon: 
max31790: Add pwmout-pin-as-tach-input property" commit.

>>
>> Signed-off-by: Chanh Nguyen <chanh@...amperecomputing.com>
>> ---
>>   Documentation/devicetree/bindings/hwmon/max31790.yaml | 11 +++++++++++
>>   1 file changed, 11 insertions(+)
>>
>> diff --git a/Documentation/devicetree/bindings/hwmon/max31790.yaml b/Documentation/devicetree/bindings/hwmon/max31790.yaml
>> index 5a93e6bdebda..447cac17053a 100644
>> --- a/Documentation/devicetree/bindings/hwmon/max31790.yaml
>> +++ b/Documentation/devicetree/bindings/hwmon/max31790.yaml
>> @@ -25,6 +25,16 @@ properties:
>>     reg:
>>       maxItems: 1
>>   
>> +  pwmout-pin-as-tach-input:
>> +    description: |
>> +      An array of six integers responds to six PWM channels for
>> +      configuring the pwm to tach mode.
>> +      When set to 0, the associated PWMOUT produces a PWM waveform for
>> +      control of fan speed. When set to 1, PWMOUT becomes a TACH input
> 
> No vendor prefix, so generic property... but where is it defined?
> 

Thank Krzysztof! It is not generic property, I'll add the vendor prefix.

I'll update the "pwmout-pin-as-tach-input" to 
"maxim,pwmout-pin-as-tach-input" at v2.

> 
> Best regards,
> Krzysztof
>