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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>
42 lines
1.3 KiB
C
42 lines
1.3 KiB
C
/*
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* Copyright (C) 2012 NVIDIA CORPORATION. All rights reserved.
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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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*/
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#ifndef __MACH_TEGRA_PMC_H
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#define __MACH_TEGRA_PMC_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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#ifdef CONFIG_PM_SLEEP
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enum tegra_suspend_mode tegra_pmc_get_suspend_mode(void);
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void tegra_pmc_pm_set(enum tegra_suspend_mode mode);
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void tegra_pmc_suspend_init(void);
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#endif
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bool tegra_pmc_cpu_is_powered(int cpuid);
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int tegra_pmc_cpu_power_on(int cpuid);
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int tegra_pmc_cpu_remove_clamping(int cpuid);
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void tegra_pmc_init(void);
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#endif
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