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From:   Guenter Roeck <linux@roeck-us.net>
Subject: Re: [v6 2/4] dt-bindings: hwmon: Add ASPEED TACH Control
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On 7/17/23 23:04, Krzysztof Kozlowski wrote:

[ ... ]

>> The first method involves passing the memory region from an MFD
>> driver, which was the
> 
> I have no clue how can you pass memory region
> (Documentation/devicetree/bindings/reserved-memory/) from MFD and why
> does it make sense here.
> 

It is quite common for mfd drivers to pass regmap information to
child drivers. Child drivers typically call dev_get_regmap() with
the parent device as parameter. Granted, that is typically used
for spi or i2c devices, but I don't see why it would not work
here as well.

Then there s syscon, but I don't know if that works with overlapping
memory regions.

Guenter