On Fri, Dec 03, 2021 at 11:48:45AM +0800, Tony Huang wrote:

IOP (IO Processor) embedded inside SP7021 which is used as
Processor for I/O control, RTC wake-up and cooperation with
CPU & PMC in power management purpose.
The IOP core is DQ8051, so also named IOP8051,
it supports dedicated JTAG debug pins which share with SP7021.
In standby mode operation, the power spec reach 400uA.

Signed-off-by: Tony Huang <tonyhuang.sunplus@gmail.com>
---
Changes in v2:
 - Addressed comments from Arnd Bergmann.
 - Addressed comments from Greg KH.
 - Addressed comments from kernel test robot.

 MAINTAINERS                    |   1 +
 drivers/misc/Kconfig           |   1 +
 drivers/misc/Makefile          |   1 +
 drivers/misc/iop/Kconfig       |  13 ++
 drivers/misc/iop/Makefile      |   6 +

Why do you need a subdirectory for a single .c file?

thanks,

greg k-h