diff options
| author | Alex Frid <afrid@nvidia.com> | 2011-04-06 20:43:55 -0700 |
|---|---|---|
| committer | Dan Willemsen <dwillemsen@nvidia.com> | 2011-11-30 21:42:30 -0800 |
| commit | 44d215b19e2a90005cbf7c03586f30b712883a5e (patch) | |
| tree | a3311d9d22f8e458faff25d86d0b5e70a5adf49a /arch/arm/mach-tegra/pm.h | |
| parent | 6ea707c882369365877deb6c8f2af744a174bc2e (diff) | |
ARM: tegra: power: Add CPU EDP support
CPU electrical design point (EDP) limits specify maximum CPU frequency
depending on number of CPU cores on-line, and chip temperature. This
commit added initial edp governor to cpufreq driver. Governor is aware
of CPU departure/arrival, but temperature dependency is yet to be added.
Therefore CPU EDP support is left disabled for now.
Original-Change-Id: Ia875aa6904df7ec25ac98863d59a173703034241
Reviewed-on: http://git-master/r/26982
Tested-by: Aleksandr Frid <afrid@nvidia.com>
Reviewed-by: Diwakar Tundlam <dtundlam@nvidia.com>
Tested-by: Diwakar Tundlam <dtundlam@nvidia.com>
Reviewed-by: Scott Williams <scwilliams@nvidia.com>
Original-Change-Id: Iae2e9d47c2d3fd4cb32104adbad4f4b26c46064c
Rebase-Id: Rde24788e86558e1c21b18a1857a8b52220ba8e2a
Diffstat (limited to 'arch/arm/mach-tegra/pm.h')
| -rw-r--r-- | arch/arm/mach-tegra/pm.h | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/arch/arm/mach-tegra/pm.h b/arch/arm/mach-tegra/pm.h index 116885ad78db..b19209292a04 100644 --- a/arch/arm/mach-tegra/pm.h +++ b/arch/arm/mach-tegra/pm.h @@ -78,6 +78,18 @@ void __init tegra_init_suspend(struct tegra_suspend_platform_data *plat); void tegra_idle_lp2(void); +struct tegra_edp_limits { + int temperature; + unsigned int freq_limits[CONFIG_NR_CPUS]; +}; +#ifdef CONFIG_TEGRA_EDP_LIMITS +void tegra_init_cpu_edp_limits(const struct tegra_edp_limits *limits, int size); +#else +static inline void tegra_init_cpu_edp_limits( + const struct tegra_edp_limits *limits, int size) +{ } +#endif + #if defined(CONFIG_TEGRA_AUTO_HOTPLUG) && !defined(CONFIG_ARCH_TEGRA_2x_SOC) int tegra_auto_hotplug_init(struct mutex *cpu_lock); void tegra_auto_hotplug_exit(void); |