| Greg Kroah-Hartman | b244131 | 2017-11-01 15:07:57 +0100 | [diff] [blame] | 1 | // SPDX-License-Identifier: GPL-2.0 |
| Marc Gonzalez | a30eceb | 2016-07-07 15:08:14 +0200 | [diff] [blame] | 2 | #include <linux/init.h> |
| 3 | #include <linux/suspend.h> |
| 4 | #include <asm/suspend.h> |
| 5 | #include "smc.h" |
| 6 | |
| 7 | static int tango_pm_powerdown(unsigned long arg) |
| 8 | { |
| Florian Fainelli | 64fc2a9 | 2017-01-15 03:59:29 +0100 | [diff] [blame] | 9 | tango_suspend(__pa_symbol(cpu_resume)); |
| Marc Gonzalez | a30eceb | 2016-07-07 15:08:14 +0200 | [diff] [blame] | 10 | |
| 11 | return -EIO; /* tango_suspend has failed */ |
| 12 | } |
| 13 | |
| 14 | static int tango_pm_enter(suspend_state_t state) |
| 15 | { |
| 16 | if (state == PM_SUSPEND_MEM) |
| 17 | return cpu_suspend(0, tango_pm_powerdown); |
| 18 | |
| 19 | return -EINVAL; |
| 20 | } |
| 21 | |
| 22 | static const struct platform_suspend_ops tango_pm_ops = { |
| 23 | .enter = tango_pm_enter, |
| 24 | .valid = suspend_valid_only_mem, |
| 25 | }; |
| 26 | |
| 27 | static int __init tango_pm_init(void) |
| 28 | { |
| 29 | suspend_set_ops(&tango_pm_ops); |
| 30 | return 0; |
| 31 | } |
| 32 | |
| 33 | late_initcall(tango_pm_init); |