Commit | Line | Data |
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f14c4f14 MD |
1 | /* |
2 | * arch/arm/mach-shmobile/pm_runtime.c | |
3 | * | |
4 | * Runtime PM support code for SuperH Mobile ARM | |
5 | * | |
6 | * Copyright (C) 2009-2010 Magnus Damm | |
7 | * | |
8 | * This file is subject to the terms and conditions of the GNU General Public | |
9 | * License. See the file "COPYING" in the main directory of this archive | |
10 | * for more details. | |
11 | */ | |
12 | ||
13 | #include <linux/init.h> | |
14 | #include <linux/kernel.h> | |
15 | #include <linux/io.h> | |
16 | #include <linux/pm_runtime.h> | |
79620414 | 17 | #include <linux/pm_domain.h> |
f14c4f14 MD |
18 | #include <linux/platform_device.h> |
19 | #include <linux/clk.h> | |
20 | #include <linux/sh_clk.h> | |
21 | #include <linux/bitmap.h> | |
1d2b71f6 | 22 | #include <linux/slab.h> |
f14c4f14 MD |
23 | |
24 | #ifdef CONFIG_PM_RUNTIME | |
f14c4f14 | 25 | |
38ade3a1 | 26 | static int default_platform_runtime_idle(struct device *dev) |
f14c4f14 MD |
27 | { |
28 | /* suspend synchronously to disable clocks immediately */ | |
29 | return pm_runtime_suspend(dev); | |
30 | } | |
31 | ||
564b905a | 32 | static struct dev_pm_domain default_pm_domain = { |
38ade3a1 | 33 | .ops = { |
3d5c3036 RW |
34 | .runtime_suspend = pm_clk_suspend, |
35 | .runtime_resume = pm_clk_resume, | |
38ade3a1 RW |
36 | .runtime_idle = default_platform_runtime_idle, |
37 | USE_PLATFORM_PM_SLEEP_OPS | |
38 | }, | |
39 | }; | |
40 | ||
564b905a | 41 | #define DEFAULT_PM_DOMAIN_PTR (&default_pm_domain) |
1d2b71f6 | 42 | |
85eb8c8d | 43 | #else |
f14c4f14 | 44 | |
564b905a | 45 | #define DEFAULT_PM_DOMAIN_PTR NULL |
f14c4f14 MD |
46 | |
47 | #endif /* CONFIG_PM_RUNTIME */ | |
48 | ||
85eb8c8d | 49 | static struct pm_clk_notifier_block platform_bus_notifier = { |
564b905a | 50 | .pm_domain = DEFAULT_PM_DOMAIN_PTR, |
85eb8c8d | 51 | .con_ids = { NULL, }, |
f14c4f14 MD |
52 | }; |
53 | ||
54 | static int __init sh_pm_runtime_init(void) | |
55 | { | |
3d5c3036 | 56 | pm_clk_add_notifier(&platform_bus_type, &platform_bus_notifier); |
f14c4f14 MD |
57 | return 0; |
58 | } | |
59 | core_initcall(sh_pm_runtime_init); | |
999a4d2a | 60 | |
999a4d2a MD |
61 | static int __init sh_pm_runtime_late_init(void) |
62 | { | |
79620414 | 63 | pm_genpd_poweroff_unused(); |
999a4d2a MD |
64 | return 0; |
65 | } | |
66 | late_initcall(sh_pm_runtime_late_init); |