linux-kernel - Re: [PATCH v3 1/2] dt-bindings: hwmon: adm1275: add adm1281

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Date: Thu, 25 Apr 2024 06:34:54 -0700
From: Guenter Roeck <linux@...ck-us.net>
To: Conor Dooley <conor.dooley@...rochip.com>,
 Jose Ramon San Buenaventura <jose.sanbuenaventura@...log.com>
Cc: linux-hwmon@...r.kernel.org, devicetree@...r.kernel.org,
 linux-kernel@...r.kernel.org, linux-doc@...r.kernel.org,
 linux-i2c@...r.kernel.org, Jean Delvare <jdelvare@...e.com>,
 Rob Herring <robh@...nel.org>, Krzysztof Kozlowski <krzk+dt@...nel.org>,
 Conor Dooley <conor+dt@...nel.org>, Jonathan Corbet <corbet@....net>,
 Delphine CC Chiu <Delphine_CC_Chiu@...ynn.com>
Subject: Re: [PATCH v3 1/2] dt-bindings: hwmon: adm1275: add adm1281

On 4/25/24 00:19, Conor Dooley wrote:
> On Thu, Apr 25, 2024 at 03:09:47PM +0800, Jose Ramon San Buenaventura wrote:
>> Add support for the adm1281 Hot-Swap Controller and Digital Power
>> and Energy Monitor
>>
>> Acked-by: Conor Dooley <conor.dooley@...rochip.com>
>> Signed-off-by: Jose Ramon San Buenaventura <jose.sanbuenaventura@...log.com>
> 
> I acked this, but I'm having second thoughts. The 1281 follows the same
> codepaths in the driver as the 1278, why is the 1278 not used as a
> fallback compatible here?
> 

That is rare for those devices es but true in this case. Technically possible,
though it would result in a "Device mismatch" notification by the driver
since it compares the configured vs. actual device IDs. I would prefer to
avoid that, if for nothing else to avoid having to deal with concerned users.

Thanks,
Guenter