81 lines
2 KiB
C
81 lines
2 KiB
C
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/* SPDX-License-Identifier: GPL-2.0 */
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/*
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* (C) COPYRIGHT 2021 Samsung Electronics Inc. All rights reserved.
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*
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* This program is free software and is provided to you under the terms of the
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* GNU General Public License version 2 as published by the Free Software
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* Foundation, and any use by you of this program is subject to the terms
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* of such GNU licence.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for 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, you can access it online at
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* http://www.gnu.org/licenses/gpl-2.0.html.
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*/
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#ifndef _GPEXBE_PM_H_
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#define _GPEXBE_PM_H_
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/**
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* gpexbe_pm_init() - initializes power management backend module
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*
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* Return: 0 on successs
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*/
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int gpexbe_pm_init(void);
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/**
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* gpexbe_pm_term() - terminates power management backend module
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*/
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void gpexbe_pm_term(void);
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/**
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* gpexbe_pm_access_lock() - acquire pm mutex
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*/
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void gpexbe_pm_access_lock(void);
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/**
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* gpexbe_pm_access_unlock() - release pm mutex
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*/
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void gpexbe_pm_access_unlock(void);
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/**
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* gpexbe_pm_pd_control_up() - power up the GPU for IFPO
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*
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* deprecated since IFPO is not used anymore
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*
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* Return: 0 on success
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*/
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int gpexbe_pm_pd_control_up(void);
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/**
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* gpexbe_pm_pd_control_down() - power down the GPU for IFPO
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*
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* deprecated since IFPO is not used anymore
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*
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* Return: 0 on success
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*/
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int gpexbe_pm_pd_control_down(void);
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/**
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* gpexbe_pm_get_status() - get GPU power status from the PMU
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*
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* Return: 1 if power is ON, 0 if power is OFF
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*/
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int gpexbe_pm_get_status(void);
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/**
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* gpexbe_pm_get_exynos_pm_domain() - get gpu pm domain (for use by TSG module)
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*
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* This function can be deprecated since TSG only checks if gpu pm domain is present
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*
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* Return: pointer to gpu pm domain struct
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*/
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struct exynos_pm_domain *gpexbe_pm_get_exynos_pm_domain(void);
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#endif /* _GPEXBE_PM_H_ */
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