On Fri, Sep 21, 2018 at 01:57:27AM +0200, Daniel Lezcano wrote: > On 21/09/2018 01:31, Guo Ren wrote: > > On Thu, Sep 20, 2018 at 06:06:19PM +0200, Daniel Lezcano wrote: > >> On 20/09/2018 10:03, Guo Ren wrote: > >>> Changelog: > >>> - Add License and Copyright > >>> - Use timer-of framework > >>> - Change name with upstream feedback > >>> - Use clksource_mmio framework > >>> > >>> Signed-off-by: Guo Ren <ren_guo@xxxxxxxxx> > >>> --- > >>> drivers/clocksource/Kconfig | 8 ++ > >>> drivers/clocksource/Makefile | 1 + > >>> drivers/clocksource/timer-gx6605s.c | 150 ++++++++++++++++++++++++++++++++++++ > >>> 3 files changed, 159 insertions(+) > >>> create mode 100644 drivers/clocksource/timer-gx6605s.c > >>> > >>> diff --git a/drivers/clocksource/Kconfig b/drivers/clocksource/Kconfig > >>> index a11f4ba..6d0f18d 100644 > >>> --- a/drivers/clocksource/Kconfig > >>> +++ b/drivers/clocksource/Kconfig > >>> @@ -620,4 +620,12 @@ config RISCV_TIMER > >>> is accessed via both the SBI and the rdcycle instruction. This is > >>> required for all RISC-V systems. > >>> > >>> +config GX6605S_TIMER > >>> + bool "Gx6605s SOC system timer driver" > >>> + depends on CSKY > >>> + select CLKSRC_MMIO > >>> + select TIMER_OF > >>> + help > >>> + This option enables support for gx6605s SOC's timer. > >>> + > >>> endmenu > >> > >> Please make the option not visible as default. There are currently two > >> approaches look at MTK_TIMER and SPRD_TIMER. > > Em ... (ot sure why COMPILE_TEST?): > > bool "Gx6605s SOC system timer driver" if COMPILE_TEST > > Hmm? > > Because by enabling the COMPILE_TEST, you give the opportunity to > someone without the hardware to cross-compile test your driver and catch > errors very soon before the changes hit your tree. > > There are several Continuous Integration loop around running the latest > changes in the kernel (kernelci, 01.org, etc ...) and all drivers with > this flag are compiled tested. > > If the option is not set, the timer is silently selected by your > platform's Kconfig only, without giving the opportunity to an non-expert > user to unselect the timer leading to, maybe, an unbootable board. > I got it, thx for the reply. Best Regards Guo Ren