RE: [PATCH mfd v1] mfd: Add Renesas Synchronization Management Unit (SMU) support

From: Min Li
Date: Fri May 21 2021 - 10:36:33 EST


> >
> > +config MFD_RSMU_I2C
> > + tristate "Renesas Synchronization Management Unit with I2C"
> > + depends on I2C && OF
> > + depends on MFD_RSMU_SPI=n
>
> Not sure I've seen a relationship like this before.
>
> Devices capable of SPI and I2C usually have a core driver which selects one
> or the other. It will also save some code duplication you have here. Please
> take a look at some other examples in the MFD subsystem.


Hi Lee

Thanks for taking your time to review my code. I will start working on the core driver. But
Kconfig items will stay as MFD_RSMU_I2C and MFD_RSMU_SPI like the existing ones

MFD_MADERA_SPI
MFD_MADERA_I2C

MFD_DA9052_SPI
MFD_DA9052_I2C

MFD_MC13XXX_SPI
MFD_MC13XXX_I2C

Min