The clocksource and the sched_clock provided by the arm_global_timer on Rockchip rk3066a/rk3188 are quite unstable because their rates depend on the cpu frequency. Recent changes to the arm_global_timer driver makes it impossible to use. On the other side, the arm_global_timer has a higher rating than the rockchip_timer, it will be selected by default by the time framework while we want to use the stable rockchip clocksource. Let's disable the arm_global_timer in order to have the ROCKCHIP_TIMER (rk3188) or DW_APB_TIMER (rk3066a) selected by default. Signed-off-by: Johan Jonker <jbx6244@xxxxxxxxx> --- ARM: dts: rockchip: disable arm-global-timer for rk3188 https://lore.kernel.org/linux-rockchip/1492374441-23336-26-git-send-email-daniel.lezcano@xxxxxxxxxx/ clocksource: arm_global_timer: implement rate compensation whenever source clock changes https://lore.kernel.org/all/20210406130045.15491-2-andrea.merello@xxxxxxxxx/ --- arch/arm/mach-rockchip/Kconfig | 2 -- 1 file changed, 2 deletions(-) diff --git a/arch/arm/mach-rockchip/Kconfig b/arch/arm/mach-rockchip/Kconfig index b7855cc66..0432a4430 100644 --- a/arch/arm/mach-rockchip/Kconfig +++ b/arch/arm/mach-rockchip/Kconfig @@ -15,8 +15,6 @@ config ARCH_ROCKCHIP select DW_APB_TIMER_OF select REGULATOR if PM select ROCKCHIP_TIMER - select ARM_GLOBAL_TIMER - select CLKSRC_ARM_GLOBAL_TIMER_SCHED_CLOCK select ZONE_DMA if ARM_LPAE select PM help -- 2.20.1
