Dear Greg KH, Arnd: > -----Original Message----- > From: Greg KH <gregkh@xxxxxxxxxxxxxxxxxxx> > Sent: Friday, December 3, 2021 6:39 PM > To: Tony Huang <tonyhuang.sunplus@xxxxxxxxx> > Cc: derek.kiernan@xxxxxxxxxx; dragan.cvetic@xxxxxxxxxx; arnd@xxxxxxxx; > linux-kernel@xxxxxxxxxxxxxxx; robh+dt@xxxxxxxxxx; devicetree@xxxxxxxxxxxxxxx; > Wells Lu 呂芳騰 <wells.lu@xxxxxxxxxxx>; Tony Huang 黃懷厚 > <tony.huang@xxxxxxxxxxx> > Subject: Re: [PATCH v2 2/2] misc: Add iop driver for Sunplus SP7021 > > 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@xxxxxxxxx> > > --- > > 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? > 1. Currently my bin file is placed in the root file system. I need to wait for the kernel booting to succeed before loading the bin code. 2. In addition, I need the kernel booting process to be able to mount the iop module and load bin file.I need to put bin file in /iop. Do you have a good way to load bin code during kernel booting? Thanks
