diff options
| author | Scott Williams <scwilliams@nvidia.com> | 2011-07-22 15:00:22 -0700 |
|---|---|---|
| committer | Dan Willemsen <dwillemsen@nvidia.com> | 2011-11-30 21:46:58 -0800 |
| commit | c25ca2247ba8515cc58c6bc847d97692f12b3f08 (patch) | |
| tree | 6d829ae00a73562cbbd615f3ccaafad42f61e7a7 /arch/arm/mach-tegra/cpuidle-t3.c | |
| parent | 3b3b17486113ac2e5af1f6d2d555f1315cb40434 (diff) | |
ARM: tegra: timer: Save TWD registers on secondary CPU LP2
Change-Id: I0ca5186fd833913b79abf2a7dbddc528d547acc6
Signed-off-by: Scott Williams <scwilliams@nvidia.com>
DW: Simplify, remove unnecessary macros
Signed-off-by: Dan Willemsen <dwillemsen@nvidia.com>
Rebase-Id: R686b57e37db12361f3c5054500c74337de6fd5a6
Diffstat (limited to 'arch/arm/mach-tegra/cpuidle-t3.c')
| -rw-r--r-- | arch/arm/mach-tegra/cpuidle-t3.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/arch/arm/mach-tegra/cpuidle-t3.c b/arch/arm/mach-tegra/cpuidle-t3.c index 25f7d26d665c..4f2208b7ff61 100644 --- a/arch/arm/mach-tegra/cpuidle-t3.c +++ b/arch/arm/mach-tegra/cpuidle-t3.c @@ -56,6 +56,7 @@ #include "pm.h" #include "reset.h" #include "sleep.h" +#include "timer.h" #define CLK_RST_CONTROLLER_CPU_CMPLX_STATUS \ (IO_ADDRESS(TEGRA_CLK_RESET_BASE) + 0x470) @@ -263,6 +264,7 @@ static void tegra3_idle_enter_lp2_cpu_n(struct cpuidle_device *dev, { #ifdef CONFIG_SMP s64 sleep_time = request - tegra_lp2_exit_latency; + struct tegra_twd_context twd_context; tegra_lp2_set_trigger(sleep_time); @@ -274,6 +276,8 @@ static void tegra3_idle_enter_lp2_cpu_n(struct cpuidle_device *dev, tegra_cpu_wake_by_time[dev->cpu] = ktime_to_us(ktime_get()) + request; smp_wmb(); + tegra_twd_suspend(&twd_context); + flush_cache_all(); barrier(); /* !!!FIXME!!! __cortex_a9_save(0); */ @@ -284,6 +288,8 @@ static void tegra3_idle_enter_lp2_cpu_n(struct cpuidle_device *dev, tegra_cpu_wake_by_time[dev->cpu] = LLONG_MAX; + tegra_twd_resume(&twd_context); + if (sleep_time) tegra_lp2_set_trigger(0); #endif |