Re: [PATCH v3] mfd: ch341: add driver for the WCH CH341 in I2C/GPIO mode

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Hello Lee,

>> Changes from v2:
>>   - bug fixes
>>   - more robust USB enumeration
>>   - Changed to an MFD driver as suggested
> 
> Perhaps you should have engaged with me before potentially wasting
> your valuable time.
> 
> MFD is designed to take a parent platform driver and split it out into
> various sub-systems.  If you don't use the MFD Core API (which is the
> case here) it is not an MFD.  MFD is not a dumping ground for
> collections of random device drivers.
> 
> I have no problem with you placing registration and core code inside
> MFD (that *is* what it was designed for), but the leaf 'functionality'
> should be placed in more appropriate locations.
> 
> I2C  => drivers/i2c
> SPI  => drivers/spi
> GPIO => drivers/gpio (or perhaps drivers/pinctrl)
> USB  => drivers/usb
> UART => drivers/tty/serial
> 
> Etc ... Find places for everything.
> 
> Anything left over, give to Greg (drivers/misc). :)
> 

AFAICS that works if the driver is built-in, but not as a module. 

I'd prefer that driver to be a module if desired, and have all its files in the same
place instead of scattered in various directories.

I can try drivers/misc if it's a better place.

Frank.





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