mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
synced 2024-08-21 16:29:59 +00:00
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>
38 lines
986 B
C
38 lines
986 B
C
/*
|
|
* Copyright (C) 2014 NVIDIA Corporation
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License version 2 as
|
|
* published by the Free Software Foundation.
|
|
*/
|
|
|
|
#ifndef __SOC_TEGRA_PM_H__
|
|
#define __SOC_TEGRA_PM_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,
|
|
};
|
|
|
|
#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);
|
|
#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)
|
|
{
|
|
}
|
|
#endif /* CONFIG_PM_SLEEP */
|
|
|
|
#endif /* __SOC_TEGRA_PM_H__ */
|