linux-kernel - Re: [PATCH v2 3/3] dt-bindings: hwmon: max31790: Add maxim,pwmout-pin-as-tach-input property

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Message-ID: <ab5cfd8c-0e88-4194-a77e-5ffbb6890319@amperemail.onmicrosoft.com>
Date: Thu, 25 Apr 2024 17:33:38 +0700
From: Chanh Nguyen <chanh@...eremail.onmicrosoft.com>
To: Conor Dooley <conor@...nel.org>
Cc: 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>,
 Phong Vo <phong@...amperecomputing.com>,
 Thang Nguyen <thang@...amperecomputing.com>,
 Quan Nguyen <quan@...amperecomputing.com>
Subject: Re: [PATCH v2 3/3] dt-bindings: hwmon: max31790: Add
 maxim,pwmout-pin-as-tach-input property



On 24/04/2024 00:02, Conor Dooley wrote:
> [EXTERNAL EMAIL NOTICE: This email originated from an external sender. Please be mindful of safe email handling and proprietary information protection practices.]
> 

Sorry Conor, there may be confusion here. I mean the mapping of the PWM 
output to the TACH input, which is on the MAX31790, and it is not sure a 
common feature on all fan controllers.

I would like to open a discussion about whether we should use the 
tach-ch property on the fan-common.yaml

I'm looking forward to hearing comments from everyone. For me, both 
tach-ch and vendor property are good.

Thank you, Conor!