diff options
| author | Scott Williams <scwilliams@nvidia.com> | 2011-03-28 09:53:23 -0700 |
|---|---|---|
| committer | Dan Willemsen <dwillemsen@nvidia.com> | 2011-11-30 21:42:27 -0800 |
| commit | ab25783924370dc7b2cd8ef8f26e3ac5bdc34f04 (patch) | |
| tree | 6801409ee16af4e4c859ead9441af4d706b25c8b /arch/arm/mach-tegra/cpuidle.c | |
| parent | afc0add383edad2e53b231f6f169a5ae1faf0d28 (diff) | |
ARM: tegra: power: Use peek ahead timers not event notification
Use peek ahead timers instead of clock event notification
for CPU idle.
Original-Change-Id: I14942ab51920f59e0dc0d4892ec2c32e073d2146
Reviewed-on: http://git-master/r/24515
Tested-by: Scott Williams <scwilliams@nvidia.com>
Reviewed-by: Aleksandr Frid <afrid@nvidia.com>
Reviewed-by: Scott Williams <scwilliams@nvidia.com>
Original-Change-Id: I4c781b328a2a8b9fa5ac8fa28970e03d3cadafa2
Rebase-Id: R894866485f818aad0ae776c474530e8be5969d32
Diffstat (limited to 'arch/arm/mach-tegra/cpuidle.c')
| -rw-r--r-- | arch/arm/mach-tegra/cpuidle.c | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/arch/arm/mach-tegra/cpuidle.c b/arch/arm/mach-tegra/cpuidle.c index bbca8ddad755..4f975fb72be1 100644 --- a/arch/arm/mach-tegra/cpuidle.c +++ b/arch/arm/mach-tegra/cpuidle.c @@ -98,7 +98,6 @@ static int tegra_idle_enter_lp2(struct cpuidle_device *dev, s64 us; local_irq_disable(); - clockevents_notify(CLOCK_EVT_NOTIFY_BROADCAST_ENTER, &dev->cpu); enter = ktime_get(); idle_stats.cpu_ready_count[dev->cpu]++; @@ -110,9 +109,11 @@ static int tegra_idle_enter_lp2(struct cpuidle_device *dev, exit = ktime_sub(ktime_get(), enter); us = ktime_to_us(exit); - clockevents_notify(CLOCK_EVT_NOTIFY_BROADCAST_EXIT, &dev->cpu); local_irq_enable(); + /* cpu clockevents may have been reset by powerdown */ + hrtimer_peek_ahead_timers(); + smp_rmb(); idle_stats.cpu_wants_lp2_time[dev->cpu] += us; |