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/* SPDX-License-Identifier: GPL-2.0-only */ /* * Copyright (C) 2014 NVIDIA Corporation */ #ifndef __SOC_TEGRA_PM_H__ #define __SOC_TEGRA_PM_H__ #include <linux/errno.h> enum tegra_suspend_mode { TEGRA_SUSPEND_NONE = 0, TEGRA_SUSPEND_LP2, /* CPU voltage off */ TEGRA_SUSPEND_LP1, /* CPU voltage off, DRAM self-refresh */ TEGRA_SUSPEND_LP0, /* CPU + core voltage off, DRAM self-refresh */ TEGRA_MAX_SUSPEND_MODE, TEGRA_SUSPEND_NOT_READY, }; #if defined(CONFIG_PM_SLEEP) && defined(CONFIG_ARM) enum tegra_suspend_mode tegra_pm_validate_suspend_mode(enum tegra_suspend_mode mode); /* low-level resume entry point */ void tegra_resume(void); int tegra30_pm_secondary_cpu_suspend(unsigned long arg); void tegra_pm_clear_cpu_in_lp2(void); void tegra_pm_set_cpu_in_lp2(void); int tegra_pm_enter_lp2(void); int tegra_pm_park_secondary_cpu(unsigned long cpu); void tegra_pm_init_suspend(void); #else static inline enum tegra_suspend_mode tegra_pm_validate_suspend_mode(enum tegra_suspend_mode mode) { return TEGRA_SUSPEND_NONE; } static inline void tegra_resume(void) { } static inline int tegra30_pm_secondary_cpu_suspend(unsigned long arg) { return -ENOTSUPP; } static inline void tegra_pm_clear_cpu_in_lp2(void) { } static inline void tegra_pm_set_cpu_in_lp2(void) { } static inline int tegra_pm_enter_lp2(void) { return -ENOTSUPP; } static inline int tegra_pm_park_secondary_cpu(unsigned long cpu) { return -ENOTSUPP; } static inline void tegra_pm_init_suspend(void) { } #endif /* CONFIG_PM_SLEEP */ #endif /* __SOC_TEGRA_PM_H__ */