Re: [PATCH v2 1/2] hwmon: (pmbus) Add support for MPS multi-phase mp2869a/mp29612a controllers

[Guenter Roeck]

On 6/30/25 04:20, tzuhao.wtmh@xxxxxxxxx wrote:
> From: Henry Wu <Henry_Wu@xxxxxxxxxxxx>
>
> Add support for the mp2869a and mp29612a controllers from Monolithic Power
> Systems, Inc. (MPS). These are dual-loop, digital, multi-phase modulation
> controllers.

This patch needs to be consolidated with the MP2869 part of
https://patchwork.kernel.org/project/linux-hwmon/patch/20250709093420.456304-2-wenswang@xxxxxxxx/
That patch uses the _identify function from the PMBus core instead of re-implementing
it, which is a plus. It also takes more chip configuration details into account.
But then it only supports mp2869 and not mp2869a or mp29612a.

The chips do not officially exist, so I have a difficult time to determine
what is actually needed or even makes sense. You'll have to determine that
with the submitter of the other driver.

Frankly, I am not even sure if I should accept drivers for chips which are
so super-secret that the manufacturer does not even admit their existence.

Guenter