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1/* SPDX-License-Identifier: GPL-2.0-only */2/*3 * Copyright (C) 2014 NVIDIA Corporation4 */5 6#ifndef __SOC_TEGRA_PM_H__7#define __SOC_TEGRA_PM_H__8 9#include <linux/errno.h>10 11enum tegra_suspend_mode {12 TEGRA_SUSPEND_NONE = 0,13 TEGRA_SUSPEND_LP2, /* CPU voltage off */14 TEGRA_SUSPEND_LP1, /* CPU voltage off, DRAM self-refresh */15 TEGRA_SUSPEND_LP0, /* CPU + core voltage off, DRAM self-refresh */16 TEGRA_MAX_SUSPEND_MODE,17 TEGRA_SUSPEND_NOT_READY,18};19 20#if defined(CONFIG_PM_SLEEP) && defined(CONFIG_ARM) && defined(CONFIG_ARCH_TEGRA)21enum tegra_suspend_mode22tegra_pm_validate_suspend_mode(enum tegra_suspend_mode mode);23 24/* low-level resume entry point */25void tegra_resume(void);26 27int tegra30_pm_secondary_cpu_suspend(unsigned long arg);28void tegra_pm_clear_cpu_in_lp2(void);29void tegra_pm_set_cpu_in_lp2(void);30int tegra_pm_enter_lp2(void);31int tegra_pm_park_secondary_cpu(unsigned long cpu);32void tegra_pm_init_suspend(void);33#else34static inline enum tegra_suspend_mode35tegra_pm_validate_suspend_mode(enum tegra_suspend_mode mode)36{37 return TEGRA_SUSPEND_NONE;38}39 40static inline void tegra_resume(void)41{42}43 44static inline int tegra30_pm_secondary_cpu_suspend(unsigned long arg)45{46 return -ENOTSUPP;47}48 49static inline void tegra_pm_clear_cpu_in_lp2(void)50{51}52 53static inline void tegra_pm_set_cpu_in_lp2(void)54{55}56 57static inline int tegra_pm_enter_lp2(void)58{59 return -ENOTSUPP;60}61 62static inline int tegra_pm_park_secondary_cpu(unsigned long cpu)63{64 return -ENOTSUPP;65}66 67static inline void tegra_pm_init_suspend(void)68{69}70#endif /* CONFIG_PM_SLEEP */71 72#endif /* __SOC_TEGRA_PM_H__ */73