On 05/25/2016 11:50 AM, Caesar Wang wrote:
From: Huang Tao <huang...@rock-chips.com>
The rockchip timer is broadcast timer. Add CLOCK_EVT_FEAT_DYNIRQ
flag and set cpumask to all cpu to save power by avoid unnecessary
wakeups and IPIs.
Signed-off-by: Huang Tao <huang...@rock-chips.com>
Cc: Daniel Lezcano <daniel.lezc...@linaro.org>
Cc: Thomas Gleixner <t...@linutronix.de>
Cc: Heiko Stuebner <he...@sntech.de>
Tested-by: Jianqun Xu <jay...@rock-chips.com>
Signed-off-by: Caesar Wang <w...@rock-chips.com>
---
drivers/clocksource/rockchip_timer.c | 5 +++--
1 file changed, 3 insertions(+), 2 deletions(-)
diff --git a/drivers/clocksource/rockchip_timer.c
b/drivers/clocksource/rockchip_timer.c
index b93fed6..f3dfb1a 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_all_mask;
s/cpu_all_mask/cpu_possible_mask/
ce->rating = 250;
ret = request_irq(irq, rk_timer_interrupt, IRQF_TIMER, TIMER_NAME, ce);
--
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