On Mon, 20 Jul 2020, Lee Jones wrote: > On Mon, 20 Jul 2020, Linus Walleij wrote: > > > On Mon, Jul 6, 2020 at 9:03 AM <ricky_wu@xxxxxxxxxxx> wrote: > > > > > drivers/misc/cardreader/Makefile | 2 +- > > > drivers/misc/cardreader/rts5228.c | 740 +++++++++++++++++++++++++++++ > > > drivers/misc/cardreader/rts5228.h | 168 +++++++ > > > drivers/misc/cardreader/rtsx_pcr.c | 89 ++-- > > > drivers/misc/cardreader/rtsx_pcr.h | 5 + > > > > This drivers/misc/cardreader business is a big confusion for my mind. > > > > Is it really that fantastic that it needs to be a unique special case? > > > > To me it looks like a drivers/mfd thing which should have separate > > drivers/regulator/rts5228.c (LDOs) > > drivers/clk/rts5228.c (clocks) > > subdrivers. > > > > See for example drivers/mfd/sta2x11-mfd.c thay spawns a few > > devices off a PCI card. > > Thanks for Cc'ing me Linus. > > Can you please bounce the diff to me too? Never mind, I found it. So you may use MFD to register the (regulator, clk, card reader) child devices, but pretty much none of that *functional* code belongs in drivers/mfd. -- Lee Jones [李琼斯] Senior Technical Lead - Developer Services Linaro.org │ Open source software for Arm SoCs Follow Linaro: Facebook | Twitter | Blog