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| author | Joseph Lo <josephl@nvidia.com> | 2013-04-03 19:31:47 +0800 |
|---|---|---|
| committer | Stephen Warren <swarren@nvidia.com> | 2013-04-03 14:31:41 -0600 |
| commit | c8c2e6069065fdecfb195a2c438c7faa964aef22 (patch) | |
| tree | 43f1528c665ec9b68891fcbcb345ffa1b0d51dcd /arch/arm/mach-tegra/pm.h | |
| parent | 4b51ccbc469facb7b589a71c2a4ae47d3e425d02 (diff) | |
| download | linux-c8c2e6069065fdecfb195a2c438c7faa964aef22.tar.gz linux-c8c2e6069065fdecfb195a2c438c7faa964aef22.tar.bz2 linux-c8c2e6069065fdecfb195a2c438c7faa964aef22.zip | |
ARM: tegra: pm: add platform suspend support
Adding suspend to RAM support for Tegra platform. There are three suspend
mode for Tegra. The difference were below.
* LP2: CPU voltage off
* LP1: CPU voltage off, DRAM in self-refresh
* LP0: CPU + Core voltage off, DRAM in self-refresh
After this patch, the LP2 suspend mode will be supported.
Signed-off-by: Joseph Lo <josephl@nvidia.com>
Signed-off-by: Stephen Warren <swarren@nvidia.com>
Diffstat (limited to 'arch/arm/mach-tegra/pm.h')
| -rw-r--r-- | arch/arm/mach-tegra/pm.h | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/arch/arm/mach-tegra/pm.h b/arch/arm/mach-tegra/pm.h index 787335cc964c..73a45f181fd9 100644 --- a/arch/arm/mach-tegra/pm.h +++ b/arch/arm/mach-tegra/pm.h @@ -21,6 +21,8 @@ #ifndef _MACH_TEGRA_PM_H_ #define _MACH_TEGRA_PM_H_ +#include "pmc.h" + extern unsigned long l2x0_saved_regs_addr; void save_cpu_arch_register(void); @@ -32,4 +34,17 @@ bool tegra_set_cpu_in_lp2(int phy_cpu_id); void tegra_idle_lp2_last(u32 cpu_on_time, u32 cpu_off_time); extern void (*tegra_tear_down_cpu)(void); +#ifdef CONFIG_PM_SLEEP +enum tegra_suspend_mode tegra_pm_validate_suspend_mode( + enum tegra_suspend_mode mode); +void tegra_init_suspend(void); +#else +enum tegra_suspend_mode tegra_pm_validate_suspend_mode( + enum tegra_suspend_mode mode) +{ + return TEGRA_SUSPEND_NONE; +} +static inline void tegra_init_suspend(void) {} +#endif + #endif /* _MACH_TEGRA_PM_H_ */ |