Commit | Line | Data |
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a1f1c7ef | 1 | /* |
e95dddb3 | 2 | * Copyright 2011-2013 Freescale Semiconductor, Inc. |
a1f1c7ef SG |
3 | * Copyright 2011 Linaro Ltd. |
4 | * | |
5 | * The code contained herein is licensed under the GNU General Public | |
6 | * License. You may obtain a copy of the GNU General Public License | |
7 | * Version 2 or later at the following locations: | |
8 | * | |
9 | * http://www.opensource.org/licenses/gpl-license.html | |
10 | * http://www.gnu.org/copyleft/gpl.html | |
11 | */ | |
12 | ||
13 | #include <linux/init.h> | |
14 | #include <linux/io.h> | |
15 | #include <linux/of.h> | |
16 | #include <linux/suspend.h> | |
17 | #include <asm/cacheflush.h> | |
18 | #include <asm/proc-fns.h> | |
19 | #include <asm/suspend.h> | |
20 | #include <asm/hardware/cache-l2x0.h> | |
a1f1c7ef | 21 | |
e3372474 | 22 | #include "common.h" |
50f2de61 | 23 | #include "hardware.h" |
e3372474 | 24 | |
a1f1c7ef SG |
25 | static int imx6q_suspend_finish(unsigned long val) |
26 | { | |
27 | cpu_do_idle(); | |
28 | return 0; | |
29 | } | |
30 | ||
31 | static int imx6q_pm_enter(suspend_state_t state) | |
32 | { | |
33 | switch (state) { | |
34 | case PM_SUSPEND_MEM: | |
35 | imx6q_set_lpm(STOP_POWER_OFF); | |
36 | imx_gpc_pre_suspend(); | |
e95dddb3 | 37 | imx_anatop_pre_suspend(); |
a1f1c7ef SG |
38 | imx_set_cpu_jump(0, v7_cpu_resume); |
39 | /* Zzz ... */ | |
40 | cpu_suspend(0, imx6q_suspend_finish); | |
41 | imx_smp_prepare(); | |
e95dddb3 | 42 | imx_anatop_post_resume(); |
a1f1c7ef | 43 | imx_gpc_post_resume(); |
83ae2098 | 44 | imx6q_set_lpm(WAIT_CLOCKED); |
a1f1c7ef SG |
45 | break; |
46 | default: | |
47 | return -EINVAL; | |
48 | } | |
49 | ||
50 | return 0; | |
51 | } | |
52 | ||
53 | static const struct platform_suspend_ops imx6q_pm_ops = { | |
54 | .enter = imx6q_pm_enter, | |
55 | .valid = suspend_valid_only_mem, | |
56 | }; | |
57 | ||
58 | void __init imx6q_pm_init(void) | |
59 | { | |
a1f1c7ef SG |
60 | suspend_set_ops(&imx6q_pm_ops); |
61 | } |