1/*
 2 * Copyright 2011 Calxeda, Inc.
 3 *
 4 * This program is free software; you can redistribute it and/or modify it
 5 * under the terms and conditions of the GNU General Public License,
 6 * version 2, as published by the Free Software Foundation.
 7 *
 8 * This program is distributed in the hope it will be useful, but WITHOUT
 9 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
10 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
11 * more details.
12 *
13 * You should have received a copy of the GNU General Public License along with
14 * this program.  If not, see <http://www.gnu.org/licenses/>.
15 */
16
17#include <linux/cpu_pm.h>
18#include <linux/init.h>
19#include <linux/suspend.h>
20
21#include <asm/suspend.h>
22#include <asm/psci.h>
23
24static int highbank_suspend_finish(unsigned long val)
25{
26	const struct psci_power_state ps = {
27		.type = PSCI_POWER_STATE_TYPE_POWER_DOWN,
28		.affinity_level = 1,
29	};
30
31	return psci_ops.cpu_suspend(ps, __pa(cpu_resume));
32}
33
34static int highbank_pm_enter(suspend_state_t state)
35{
36	cpu_pm_enter();
37	cpu_cluster_pm_enter();
38
39	cpu_suspend(0, highbank_suspend_finish);
40
41	cpu_cluster_pm_exit();
42	cpu_pm_exit();
43
44	return 0;
45}
46
47static const struct platform_suspend_ops highbank_pm_ops = {
48	.enter = highbank_pm_enter,
49	.valid = suspend_valid_only_mem,
50};
51
52void __init highbank_pm_init(void)
53{
54	if (!psci_ops.cpu_suspend)
55		return;
56
57	suspend_set_ops(&highbank_pm_ops);
58}