Re: [PATCH v3 3/3] drivers: hwmon: add EMC2101 driver

[Guenter Roeck <linux@roeck-us.net>]

On 7/16/25 09:05, Guenter Roeck wrote:
> On 7/9/25 09:48, Álvaro Fernández Rojas wrote:
>> The Microchip EMC2101 is a SMBus 2.0 fan controller with temperature
>> monitoring.
>> It supports up to 1 fan, 1 internal temperature sensor, 1 external
>> temperature sensor and an 8 entry look up table to create a
>> programmable temperature response.
>>
>> Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
> 
> This looks very much like a clone of LM63. Why does it warrant a new driver ?
> 

I had another look at the two chips. EMC2101 is indeed - with a few exceptions -
almost identical to LM63. There are minor differences; for example, EMC2101 does
not (or not officially) support temperature offset registers. That does not
warrant a separate driver.

Please add support for EMC2101 to the lm63 driver. If you like, feel free
to "modernize" the lm63 driver to use the with_info API and/or to use regmap,
but a separate driver for what is essentially the same chip is not acceptable.

Thanks,
Guenter