linux-kernel - Re: [PATCH v2] dt-bindings: hwmon: tda38640: Add interrupt & regulator properties

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Date: Wed, 14 Feb 2024 17:17:04 -0800
From: Guenter Roeck <linux@...ck-us.net>
To: Conor Dooley <conor@...nel.org>
Cc: Naresh Solanki <naresh.solanki@...ements.com>,
 Jean Delvare <jdelvare@...e.com>, Rob Herring <robh+dt@...nel.org>,
 Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
 Conor Dooley <conor+dt@...nel.org>, mazziesaccount@...il.com,
 linux-hwmon@...r.kernel.org, devicetree@...r.kernel.org,
 linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2] dt-bindings: hwmon: tda38640: Add interrupt &
 regulator properties

On 2/14/24 11:55, Conor Dooley wrote:
[ ... ]
>>> Why "vout0" if there's only one output? Is it called that in the
>>> documentation? I had a quick check but only saw it called "vout".
>>> Are there other related devices that would have multiple regulators
>>> that might end up sharing the binding?
>>>
>>
>> Primarily because that is what the PMBus core generates for the driver
>> because no one including me was aware that this is unacceptable
>> for single-output drivers.
> 
> Is it unacceptable? If you're implying that I am saying it is, that's
> not what I was doing here - I'm just wondering why it was chosen.
> Numbering when there's only one seems odd, so I was just looking for the
> rationale.
> 

Given the tendency of corporate speak (aka "this was a good attempt" for
a complete screwup), and since this did come up before, I did interpret
it along that line. My apologies if that was not the idea.

Still, I really don't know how to resolve this for existing PMBus drivers
which do register "vout0" even if there is only a single output regulator.

Guenter