On 26/10/2018 10:25, Biju Das wrote: > This patch adds CMT{0|1|2|3} device nodes for r8a7796 SoC. > > Signed-off-by: Biju Das <biju.das@xxxxxxxxxxxxxx> > --- > This patch is tested against renesas-dev > > I have executed on inconsistency-check, nanosleep and clocksource_switch > selftests on this arm64 SoC. The inconsistency-check and nanosleep tests > are working fine.The clocksource_switch asynchronous test is failing due > to inconsistency-check failure on "arch_sys_counter". > > But if i skip the clocksource_switching of "arch_sys_counter", the > asynchronous test is passing for CMT0/1/2/3 timer. > > Has any one noticed this issue? So now that you mention that, I've been through the clocksource_switch on another ARM64 platform (hikey960) and disabled the ARM64_ERRATUM_858921 config option. I can see the same issue. Is this option set on your config ? -- <http://www.linaro.org/> Linaro.org │ Open source software for ARM SoCs Follow Linaro: <http://www.facebook.com/pages/Linaro> Facebook | <http://twitter.com/#!/linaroorg> Twitter | <http://www.linaro.org/linaro-blog/> Blog