Hello Heiko, Daniel! Are there any reasons why the patches [1][2] are not applied yet into kernel? How can I help in applying patches? Regards, Alexander. [1] http://lists.infradead.org/pipermail/linux-rockchip/2016-November/thread.html#13236 [PATCH v4 0/9] Implement clocksource for rockchip SoC using rockchip timer [2] http://lists.infradead.org/pipermail/linux-rockchip/2016-December/013308.html > 29 нояб. 2016 г., в 19:14, Alexander Kochetkov <al.kochet@xxxxxxxxx> написал(а): > > Hello, > > This patch series contain: > - devicetree bindings clarification for rockchip timers > - dts files fixes for rk3228-evb, rk3229-evb and rk3188 > - implementation of clocksource and sched clock for rockchip SoC > > The clock supplying the arm-global-timer on the rk3188 is coming from the > the cpu clock itself and thus changes its rate everytime cpufreq adjusts > the cpu frequency making this timer unsuitable as a stable clocksource. > > The rk3188, rk3288 and following socs share a separate timer block already > handled by the rockchip-timer driver. Therefore adapt this driver to also > be able to act as clocksource on rk3188. > > In order to test clocksource you can run following commands and check > how much time it take in real. On rk3188 it take about ~45 seconds. > > cpufreq-set -f 1.6GHZ > date; sleep 60; date > > rk3288 (and probably anything newer) is irrelevant to this patch, > as it has the arch timer interface. This patch may be usefull > for Cortex-A9/A5 based parts. > > Regards, > Alexander. > > This is try 4. Please discard all v1, v2, v3 patches. > > Changes in v4: > merged 7 and 8 from series 3 > merged 10, 11, 12, 13 from series 3 > fixed commit message > > Changes in v3: > added patches: > ARM: dts: rockchip: disable arm-global-timer for rk3188 > clocksource/drivers/rockchip_timer: Prevent ftrace recursion > > devicetree v1 patches: > https://patchwork.ozlabs.org/patch/699019/ > https://patchwork.ozlabs.org/patch/699020/ > > kernel v1 patches: > https://patchwork.kernel.org/patch/9443975/ > https://patchwork.kernel.org/patch/9443971/ > https://patchwork.kernel.org/patch/9443959/ > https://patchwork.kernel.org/patch/9443963/ > https://patchwork.kernel.org/patch/9443979/ > https://patchwork.kernel.org/patch/9443989/ > https://patchwork.kernel.org/patch/9443987/ > https://patchwork.kernel.org/patch/9443977/ > https://patchwork.kernel.org/patch/9443991/ > > Alexander Kochetkov (9): > dt-bindings: clarify compatible property for rockchip timers > ARM: dts: rockchip: update compatible property for rk3228 timer > ARM: dts: rockchip: update compatible property for rk3229 timer > ARM: dts: rockchip: add timer entries to rk3188 SoC > ARM: dts: rockchip: disable arm-global-timer for rk3188 > clocksource/drivers/rockchip_timer: split bc_timer into rk_timer and > rk_clock_event_device > clocksource/drivers/rockchip_timer: low level routines take rk_timer > as parameter > clocksource/drivers/rockchip_timer: move TIMER_INT_UNMASK out of > rk_timer_enable() > clocksource/drivers/rockchip_timer: implement clocksource timer > > .../bindings/timer/rockchip,rk-timer.txt | 12 +- > arch/arm/boot/dts/rk3188.dtsi | 17 ++ > arch/arm/boot/dts/rk3228-evb.dts | 4 + > arch/arm/boot/dts/rk3229-evb.dts | 4 + > drivers/clocksource/rockchip_timer.c | 207 +++++++++++++++----- > 5 files changed, 190 insertions(+), 54 deletions(-) > > -- > 1.7.9.5 > -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
