forked from Minki/linux
c8c2e60690
Adding suspend to RAM support for Tegra platform. There are three suspend mode for Tegra. The difference were below. * LP2: CPU voltage off * LP1: CPU voltage off, DRAM in self-refresh * LP0: CPU + Core voltage off, DRAM in self-refresh After this patch, the LP2 suspend mode will be supported. Signed-off-by: Joseph Lo <josephl@nvidia.com> Signed-off-by: Stephen Warren <swarren@nvidia.com>
51 lines
1.5 KiB
C
51 lines
1.5 KiB
C
/*
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* Copyright (C) 2010 Google, Inc.
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* Copyright (c) 2010-2012 NVIDIA Corporation. All rights reserved.
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*
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* Author:
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* Colin Cross <ccross@google.com>
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms and conditions of the GNU General Public License,
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* version 2, as published by the Free Software Foundation.
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*
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* This program is distributed in the hope it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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* more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef _MACH_TEGRA_PM_H_
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#define _MACH_TEGRA_PM_H_
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#include "pmc.h"
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extern unsigned long l2x0_saved_regs_addr;
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void save_cpu_arch_register(void);
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void restore_cpu_arch_register(void);
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void tegra_clear_cpu_in_lp2(int phy_cpu_id);
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bool tegra_set_cpu_in_lp2(int phy_cpu_id);
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void tegra_idle_lp2_last(u32 cpu_on_time, u32 cpu_off_time);
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extern void (*tegra_tear_down_cpu)(void);
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#ifdef CONFIG_PM_SLEEP
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enum tegra_suspend_mode tegra_pm_validate_suspend_mode(
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enum tegra_suspend_mode mode);
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void tegra_init_suspend(void);
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#else
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enum tegra_suspend_mode tegra_pm_validate_suspend_mode(
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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_init_suspend(void) {}
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#endif
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#endif /* _MACH_TEGRA_PM_H_ */
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