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author | Paul Mundt <lethal@linux-sh.org> | 2011-11-24 03:34:03 -0500 |
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committer | Paul Mundt <lethal@linux-sh.org> | 2011-11-24 03:34:03 -0500 |
commit | 17f0056e6a2f3d1818801705f5e12b71217bf4ef (patch) | |
tree | fe6fa1c0b92c43804a31b443ce4b5159d4d0ce13 /drivers/sh/pm_runtime.c | |
parent | f87114e982cf3b657411e2df50e4e42ec1f162dd (diff) | |
parent | be09d1dcf21eb3121bed3ee4dadacdea1805d7f8 (diff) |
Merge branch 'rmobile-fixes-for-linus' into rmobile-latest
Diffstat (limited to 'drivers/sh/pm_runtime.c')
-rw-r--r-- | drivers/sh/pm_runtime.c | 65 |
1 files changed, 65 insertions, 0 deletions
diff --git a/drivers/sh/pm_runtime.c b/drivers/sh/pm_runtime.c new file mode 100644 index 000000000000..afe9282629b9 --- /dev/null +++ b/drivers/sh/pm_runtime.c | |||
@@ -0,0 +1,65 @@ | |||
1 | /* | ||
2 | * Runtime PM support code | ||
3 | * | ||
4 | * Copyright (C) 2009-2010 Magnus Damm | ||
5 | * | ||
6 | * This file is subject to the terms and conditions of the GNU General Public | ||
7 | * License. See the file "COPYING" in the main directory of this archive | ||
8 | * for more details. | ||
9 | */ | ||
10 | |||
11 | #include <linux/init.h> | ||
12 | #include <linux/kernel.h> | ||
13 | #include <linux/io.h> | ||
14 | #include <linux/pm_runtime.h> | ||
15 | #include <linux/pm_domain.h> | ||
16 | #include <linux/pm_clock.h> | ||
17 | #include <linux/platform_device.h> | ||
18 | #include <linux/clk.h> | ||
19 | #include <linux/sh_clk.h> | ||
20 | #include <linux/bitmap.h> | ||
21 | #include <linux/slab.h> | ||
22 | |||
23 | #ifdef CONFIG_PM_RUNTIME | ||
24 | |||
25 | static int default_platform_runtime_idle(struct device *dev) | ||
26 | { | ||
27 | /* suspend synchronously to disable clocks immediately */ | ||
28 | return pm_runtime_suspend(dev); | ||
29 | } | ||
30 | |||
31 | static struct dev_pm_domain default_pm_domain = { | ||
32 | .ops = { | ||
33 | .runtime_suspend = pm_clk_suspend, | ||
34 | .runtime_resume = pm_clk_resume, | ||
35 | .runtime_idle = default_platform_runtime_idle, | ||
36 | USE_PLATFORM_PM_SLEEP_OPS | ||
37 | }, | ||
38 | }; | ||
39 | |||
40 | #define DEFAULT_PM_DOMAIN_PTR (&default_pm_domain) | ||
41 | |||
42 | #else | ||
43 | |||
44 | #define DEFAULT_PM_DOMAIN_PTR NULL | ||
45 | |||
46 | #endif /* CONFIG_PM_RUNTIME */ | ||
47 | |||
48 | static struct pm_clk_notifier_block platform_bus_notifier = { | ||
49 | .pm_domain = DEFAULT_PM_DOMAIN_PTR, | ||
50 | .con_ids = { NULL, }, | ||
51 | }; | ||
52 | |||
53 | static int __init sh_pm_runtime_init(void) | ||
54 | { | ||
55 | pm_clk_add_notifier(&platform_bus_type, &platform_bus_notifier); | ||
56 | return 0; | ||
57 | } | ||
58 | core_initcall(sh_pm_runtime_init); | ||
59 | |||
60 | static int __init sh_pm_runtime_late_init(void) | ||
61 | { | ||
62 | pm_genpd_poweroff_unused(); | ||
63 | return 0; | ||
64 | } | ||
65 | late_initcall(sh_pm_runtime_late_init); | ||