mirror of https://gitee.com/openkylin/linux.git
61 lines
1.5 KiB
C
61 lines
1.5 KiB
C
/*
|
|
* Copyright 2011 Calxeda, Inc.
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify it
|
|
* under the terms and conditions of the GNU General Public License,
|
|
* version 2, as published by the Free Software Foundation.
|
|
*
|
|
* This program is distributed in the hope it will be useful, but WITHOUT
|
|
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
|
|
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
|
|
* more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License along with
|
|
* this program. If not, see <http://www.gnu.org/licenses/>.
|
|
*/
|
|
|
|
#include <linux/cpu_pm.h>
|
|
#include <linux/init.h>
|
|
#include <linux/psci.h>
|
|
#include <linux/suspend.h>
|
|
|
|
#include <asm/suspend.h>
|
|
|
|
#include <uapi/linux/psci.h>
|
|
|
|
#define HIGHBANK_SUSPEND_PARAM \
|
|
((0 << PSCI_0_2_POWER_STATE_ID_SHIFT) | \
|
|
(1 << PSCI_0_2_POWER_STATE_AFFL_SHIFT) | \
|
|
(PSCI_POWER_STATE_TYPE_POWER_DOWN << PSCI_0_2_POWER_STATE_TYPE_SHIFT))
|
|
|
|
static int highbank_suspend_finish(unsigned long val)
|
|
{
|
|
return psci_ops.cpu_suspend(HIGHBANK_SUSPEND_PARAM, __pa(cpu_resume));
|
|
}
|
|
|
|
static int highbank_pm_enter(suspend_state_t state)
|
|
{
|
|
cpu_pm_enter();
|
|
cpu_cluster_pm_enter();
|
|
|
|
cpu_suspend(0, highbank_suspend_finish);
|
|
|
|
cpu_cluster_pm_exit();
|
|
cpu_pm_exit();
|
|
|
|
return 0;
|
|
}
|
|
|
|
static const struct platform_suspend_ops highbank_pm_ops = {
|
|
.enter = highbank_pm_enter,
|
|
.valid = suspend_valid_only_mem,
|
|
};
|
|
|
|
void __init highbank_pm_init(void)
|
|
{
|
|
if (!psci_ops.cpu_suspend)
|
|
return;
|
|
|
|
suspend_set_ops(&highbank_pm_ops);
|
|
}
|