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| author | Joseph Lo <josephl@nvidia.com> | 2012-10-31 13:41:17 +0400 |
|---|---|---|
| committer | Stephen Warren <swarren@nvidia.com> | 2012-11-16 02:09:21 +0400 |
| commit | d457ef358f3c7179c428becda45b1dfd2b8cf98a (patch) | |
| tree | 90299ea88a7fb8ebe02cb2cd45160db13afe6775 /arch/arm/mach-tegra/sleep.h | |
| parent | d3f293656c07a1147c11e8c8774d7955a903cee0 (diff) | |
| download | linux-d457ef358f3c7179c428becda45b1dfd2b8cf98a.tar.xz | |
ARM: tegra30: cpuidle: add powered-down state for secondary CPUs
This supports power-gated idle on secondary CPUs for Tegra30. The
secondary CPUs can go into powered-down state independently. When
CPU goes into this state, it saves it's contexts and puts itself
to flow controlled WFI state. After that, it will been power gated.
Be aware of that, you may see the legacy power state "LP2" in the
code which is exactly the same meaning of "CPU power down".
Based on the work by:
Scott Williams <scwilliams@nvidia.com>
Signed-off-by: Joseph Lo <josephl@nvidia.com>
Signed-off-by: Stephen Warren <swarren@nvidia.com>
Diffstat (limited to 'arch/arm/mach-tegra/sleep.h')
| -rw-r--r-- | arch/arm/mach-tegra/sleep.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/arch/arm/mach-tegra/sleep.h b/arch/arm/mach-tegra/sleep.h index addb83f5bc73..bacf549bd54d 100644 --- a/arch/arm/mach-tegra/sleep.h +++ b/arch/arm/mach-tegra/sleep.h @@ -82,5 +82,7 @@ static inline void tegra20_hotplug_init(void) {} static inline void tegra30_hotplug_init(void) {} #endif +int tegra30_sleep_cpu_secondary_finish(unsigned long); + #endif #endif |