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2b20b6164e
Tegra SoCs with 64-bit ARM support don't currently support deep CPU low-power states in mainline Linux. When this support is added in the future, it will probably look rather different from the existing 32-bit ARM support, since the ARM64 maintainers' strong preference is to use PSCI to implement it. So, for the time being, prevent the CPU suspend-related code and data in the Tegra PMC driver from compiling on ARM64. Signed-off-by: Paul Walmsley <paul@pwsan.com> Signed-off-by: Paul Walmsley <pwalmsley@nvidia.com> Cc: Thierry Reding <treding@nvidia.com> Cc: Allen Martin <amartin@nvidia.com> Cc: Stephen Warren <swarren@nvidia.com> Cc: Alexandre Courbot <gnurou@gmail.com> Signed-off-by: Thierry Reding <treding@nvidia.com>
39 lines
986 B
C
39 lines
986 B
C
/*
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* Copyright (C) 2014 NVIDIA Corporation
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*/
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#ifndef __SOC_TEGRA_PM_H__
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#define __SOC_TEGRA_PM_H__
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enum tegra_suspend_mode {
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TEGRA_SUSPEND_NONE = 0,
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TEGRA_SUSPEND_LP2, /* CPU voltage off */
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TEGRA_SUSPEND_LP1, /* CPU voltage off, DRAM self-refresh */
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TEGRA_SUSPEND_LP0, /* CPU + core voltage off, DRAM self-refresh */
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TEGRA_MAX_SUSPEND_MODE,
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};
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#if defined(CONFIG_PM_SLEEP) && defined(CONFIG_ARM)
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enum tegra_suspend_mode
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tegra_pm_validate_suspend_mode(enum tegra_suspend_mode mode);
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/* low-level resume entry point */
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void tegra_resume(void);
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#else
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static inline enum tegra_suspend_mode
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tegra_pm_validate_suspend_mode(enum tegra_suspend_mode mode)
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{
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return TEGRA_SUSPEND_NONE;
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}
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static inline void tegra_resume(void)
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{
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}
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#endif /* CONFIG_PM_SLEEP */
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#endif /* __SOC_TEGRA_PM_H__ */
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