| 1 | // SPDX-License-Identifier: GPL-2.0-only |
|---|---|
| 2 | /* |
| 3 | * Copyright 2016 NXP Semiconductors |
| 4 | */ |
| 5 | |
| 6 | #include <linux/kernel.h> |
| 7 | #include <linux/suspend.h> |
| 8 | #include <linux/io.h> |
| 9 | #include "common.h" |
| 10 | |
| 11 | static int imx25_suspend_enter(suspend_state_t state) |
| 12 | { |
| 13 | if (!IS_ENABLED(CONFIG_PM)) |
| 14 | return 0; |
| 15 | |
| 16 | switch (state) { |
| 17 | case PM_SUSPEND_MEM: |
| 18 | cpu_do_idle(); |
| 19 | break; |
| 20 | default: |
| 21 | return -EINVAL; |
| 22 | } |
| 23 | |
| 24 | return 0; |
| 25 | } |
| 26 | |
| 27 | static const struct platform_suspend_ops imx25_suspend_ops = { |
| 28 | .enter = imx25_suspend_enter, |
| 29 | .valid = suspend_valid_only_mem, |
| 30 | }; |
| 31 | |
| 32 | void __init imx25_pm_init(void) |
| 33 | { |
| 34 | suspend_set_ops(ops: &imx25_suspend_ops); |
| 35 | } |
| 36 |