diff options
| author | Huang, Tao <huangtao@rock-chips.com> | 2016-06-16 15:57:53 +0200 |
|---|---|---|
| committer | Huang, Tao <huangtao@rock-chips.com> | 2016-06-22 19:54:13 +0800 |
| commit | 37a084a635faaf9e0efc83f2ee6807d9453e29be (patch) | |
| tree | 60f85328f7ffdd314f9baa063d6ba9a3de6029ba /drivers/clocksource | |
| parent | 142baf7d610b0951d00f592ac82b04802f4ae977 (diff) | |
UPSTREAM: clocksource/drivers/rockchip: Add the dynamic irq flag to the timer
The rockchip timer is a broadcast timer. Add the CLOCK_EVT_FEAT_DYNIRQ flag
and set the cpumask to all possible cpus to save power by avoiding
unnecessary wakeups and IPIs.
BUG=chrome-os-partner:54522
TEST=Tested on gru, cat /proc/interrupts |grep timer
Change-Id: Ic7de570f35921a292e4687c2bcf408b37334f781
Signed-off-by: Huang Tao <huangtao@rock-chips.com>
Cc: Daniel Lezcano <daniel.lezcano@linaro.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Heiko Stuebner <heiko@sntech.de>
Tested-by: Jianqun Xu <jay.xu@rock-chips.com>
Signed-off-by: Caesar Wang <wxt@rock-chips.com>
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
(cherry picked from git.linaro.org/people/daniel.lezcano/linux.git clockevents/next
commit 11932c2ac6f8c0f20f12a38569a36f0d1b5cfd6b)
Reviewed-on: https://chromium-review.googlesource.com/353976
Reviewed-by: Douglas Anderson <dianders@chromium.org>
Diffstat (limited to 'drivers/clocksource')
| -rw-r--r-- | drivers/clocksource/rockchip_timer.c | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/drivers/clocksource/rockchip_timer.c b/drivers/clocksource/rockchip_timer.c index b991b288c803..b510863fd1e1 100644 --- a/drivers/clocksource/rockchip_timer.c +++ b/drivers/clocksource/rockchip_timer.c @@ -150,12 +150,13 @@ static void __init rk_timer_init(struct device_node *np) } ce->name = TIMER_NAME; - ce->features = CLOCK_EVT_FEAT_PERIODIC | CLOCK_EVT_FEAT_ONESHOT; + ce->features = CLOCK_EVT_FEAT_PERIODIC | CLOCK_EVT_FEAT_ONESHOT | + CLOCK_EVT_FEAT_DYNIRQ; ce->set_next_event = rk_timer_set_next_event; ce->set_state_shutdown = rk_timer_shutdown; ce->set_state_periodic = rk_timer_set_periodic; ce->irq = irq; - ce->cpumask = cpumask_of(0); + ce->cpumask = cpu_possible_mask; ce->rating = 250; rk_timer_interrupt_clear(ce); |