| Message ID | 903ba85a-75fc-ff9e-e0ba-4a1e6161abc1@gmail.com |
|---|---|
| State | New |
| Headers | show |
| Series | [v1,1/2] arm: rockchip: Kconfig: remove select ARM_GLOBAL_TIMER | expand |
diff --git a/arch/arm/boot/dts/rk3066a.dtsi b/arch/arm/boot/dts/rk3066a.dtsi index de9915d94..cf8045625 100644 --- a/arch/arm/boot/dts/rk3066a.dtsi +++ b/arch/arm/boot/dts/rk3066a.dtsi @@ -653,6 +653,10 @@ }; }; +&global_timer { + status = "disabled"; +}; + &gpu { compatible = "rockchip,rk3066-mali", "arm,mali-400"; interrupts = <GIC_SPI 5 IRQ_TYPE_LEVEL_HIGH>,
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 DW_APB_TIMER (rk3066a) selected by default. Signed-off-by: Johan Jonker <jbx6244@gmail.com> --- ARM: dts: rockchip: disable arm-global-timer for rk3188 https://lore.kernel.org/linux-rockchip/1492374441-23336-26-git-send-email-daniel.lezcano@linaro.org/ clocksource: arm_global_timer: implement rate compensation whenever source clock changes https://lore.kernel.org/all/20210406130045.15491-2-andrea.merello@gmail.com/ --- arch/arm/boot/dts/rk3066a.dtsi | 4 ++++ 1 file changed, 4 insertions(+) -- 2.20.1