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| author | Dmitry Osipenko <digetx@gmail.com> | 2020-02-25 01:40:42 +0300 |
|---|---|---|
| committer | Thierry Reding <treding@nvidia.com> | 2020-03-12 10:53:18 +0100 |
| commit | 859a6f6ee15ee8931da40fae31fdea73a5e72192 (patch) | |
| tree | 2909e6ea38a6368ccb172c537b020f75f51edbe6 /arch/arm/mach-tegra/pm.h | |
| parent | df25e554887f47c8e9c110e7cca2f27dbe6ef4fb (diff) | |
| download | linux-859a6f6ee15ee8931da40fae31fdea73a5e72192.tar.gz linux-859a6f6ee15ee8931da40fae31fdea73a5e72192.tar.bz2 linux-859a6f6ee15ee8931da40fae31fdea73a5e72192.zip | |
ARM: tegra: Add tegra_pm_park_secondary_cpu()
This function resembles tegra_cpu_die() of the hotplug code, but
this variant is more suitable to be used for CPU PM because it's made
specifically to be used by cpu_suspend(). In short this function puts
secondary CPU offline, it will be used by the new CPUIDLE driver.
Acked-by: Peter De Schrijver <pdeschrijver@nvidia.com>
Tested-by: Peter Geis <pgwipeout@gmail.com>
Tested-by: Jasper Korten <jja2000@gmail.com>
Tested-by: David Heidelberg <david@ixit.cz>
Tested-by: Nicolas Chauvet <kwizart@gmail.com>
Signed-off-by: Dmitry Osipenko <digetx@gmail.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
Diffstat (limited to 'arch/arm/mach-tegra/pm.h')
| -rw-r--r-- | arch/arm/mach-tegra/pm.h | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/arch/arm/mach-tegra/pm.h b/arch/arm/mach-tegra/pm.h index 569151b3edc0..9a790f00237f 100644 --- a/arch/arm/mach-tegra/pm.h +++ b/arch/arm/mach-tegra/pm.h @@ -31,8 +31,13 @@ extern void (*tegra_tear_down_cpu)(void); #ifdef CONFIG_PM_SLEEP void tegra_init_suspend(void); +int tegra_pm_park_secondary_cpu(unsigned long cpu); #else static inline void tegra_init_suspend(void) {} +static inline int tegra_pm_park_secondary_cpu(unsigned long cpu) +{ + return -ENOTSUPP; +} #endif #endif /* _MACH_TEGRA_PM_H_ */ |