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Groups > linux.kernel > #1420814
| From | Daniel Lezcano <daniel.lezcano@linaro.org> |
|---|---|
| Newsgroups | linux.kernel |
| Subject | Re: [PATCH v2 0/4] clocksource: rockchip/timer: Support rktimer for rk3399 |
| Date | 2016-06-13 15:10 +0200 |
| Message-ID | <rJzMS-6In-29@gated-at.bofh.it> (permalink) |
| References | <rHhhn-6ua-7@gated-at.bofh.it> |
| Organization | linux.* mail to news gateway |
On Tue, Jun 07, 2016 at 12:54:29PM +0800, Caesar Wang wrote: > This series patches had been tested on rockchip inside kernel. > In order to support the rk3399 SoC timer and turn off interrupts and IPIs to > save power in idle. For my personnal information, are the arch_timer in the same power domain than the CPU ? IOW, what is the 'always-on' property in the DT ? > Okay, it still works bootup on rk3288/other SoCs, even though many socs > hasn't used > the broadcast timer. Yes, unfortunately the SoC design on rk3288 and the previous ones do not allow to use a cpuidle driver with cpu/cluster power down, so obviously the broadcast timer is pointless on these boards :) > History version: > v1: > https://lkml.org/lkml/2016/5/25/186 > > Easy to test for my borad. > localhost / # cat /proc/interrupts > CPU0 CPU1 CPU2 CPU3 CPU4 CPU5 > 1: 0 0 0 0 0 0 GICv3 29 Edge arch_timer > ... > 5: 0 0 0 0 0 0 GICv3 113 Level rk_timer > .. > > localhost / # cat /proc/timer_list | grep event_handler > get "event_handler: hrtimer_interrupt" > event_handler: tick_handle_oneshot_broadcast > event_handler: hrtimer_interrupt What are you trying to demonstrate here ? There are no interrupts for both arch_timer and rk_timer. > That should work for my board. What do you mean ?
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Re: [PATCH v2 0/4] clocksource: rockchip/timer: Support rktimer for rk3399 Daniel Lezcano <daniel.lezcano@linaro.org> - 2016-06-13 15:10 +0200
Re: [PATCH v2 0/4] clocksource: rockchip/timer: Support rktimer for rk3399 "Huang, Tao" <huangtao@rock-chips.com> - 2016-06-14 06:10 +0200
Re: [PATCH v2 0/4] clocksource: rockchip/timer: Support rktimer for rk3399 Caesar Wang <wxt@rock-chips.com> - 2016-06-14 11:20 +0200
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