diff options
author | Kevin Hilman <khilman@deeprootsystems.com> | 2009-05-28 13:56:16 -0400 |
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committer | Kevin Hilman <khilman@deeprootsystems.com> | 2009-05-28 13:58:50 -0400 |
commit | 8bd229492209c0c7d050e2f9a600c12f035d72f7 (patch) | |
tree | c76039df215b1c3ba58adb23845baa4af40f25fe /arch/arm/mach-omap2/pm.c | |
parent | a330bd4750bc84aebb28faddd525d0bcbdde262d (diff) |
OMAP2/3: PM: push core PM code from linux-omap
This patch is to sync the core linux-omap PM code with mainline. This
code has evolved and been used for a while the linux-omap tree, but
the attempt here is to finally get this into mainline.
Following this will be a series of patches from the 'PM branch' of the
linux-omap tree to add full PM hardware support from the linux-omap
tree.
Much of this PM core code was written by Jouni Hogander with
significant contributions from Paul Walmsley as well as many others
from Nokia, Texas Instruments and linux-omap community.
Signed-off-by: Jouni Hogander <jouni.hogander@nokia.com>
Cc: Paul Walmsley <paul@pwsan.com>
Signed-off-by: Kevin Hilman <khilman@deeprootsystems.com>
Diffstat (limited to 'arch/arm/mach-omap2/pm.c')
-rw-r--r-- | arch/arm/mach-omap2/pm.c | 111 |
1 files changed, 0 insertions, 111 deletions
diff --git a/arch/arm/mach-omap2/pm.c b/arch/arm/mach-omap2/pm.c deleted file mode 100644 index ea8ceaed09cb..000000000000 --- a/arch/arm/mach-omap2/pm.c +++ /dev/null | |||
@@ -1,111 +0,0 @@ | |||
1 | /* | ||
2 | * linux/arch/arm/mach-omap2/pm.c | ||
3 | * | ||
4 | * OMAP2 Power Management Routines | ||
5 | * | ||
6 | * Copyright (C) 2006 Nokia Corporation | ||
7 | * Tony Lindgren <tony@atomide.com> | ||
8 | * | ||
9 | * Copyright (C) 2005 Texas Instruments, Inc. | ||
10 | * Richard Woodruff <r-woodruff2@ti.com> | ||
11 | * | ||
12 | * Based on pm.c for omap1 | ||
13 | * | ||
14 | * This program is free software; you can redistribute it and/or modify | ||
15 | * it under the terms of the GNU General Public License version 2 as | ||
16 | * published by the Free Software Foundation. | ||
17 | */ | ||
18 | |||
19 | #include <linux/suspend.h> | ||
20 | #include <linux/sched.h> | ||
21 | #include <linux/proc_fs.h> | ||
22 | #include <linux/interrupt.h> | ||
23 | #include <linux/sysfs.h> | ||
24 | #include <linux/module.h> | ||
25 | #include <linux/delay.h> | ||
26 | #include <linux/clk.h> | ||
27 | #include <linux/io.h> | ||
28 | |||
29 | #include <asm/irq.h> | ||
30 | #include <asm/atomic.h> | ||
31 | #include <asm/mach/time.h> | ||
32 | #include <asm/mach/irq.h> | ||
33 | |||
34 | #include <mach/irqs.h> | ||
35 | #include <mach/clock.h> | ||
36 | #include <mach/sram.h> | ||
37 | #include <mach/pm.h> | ||
38 | |||
39 | static struct clk *vclk; | ||
40 | static void (*omap2_sram_idle)(void); | ||
41 | static void (*omap2_sram_suspend)(int dllctrl, int cpu_rev); | ||
42 | static void (*saved_idle)(void); | ||
43 | |||
44 | extern void __init pmdomain_init(void); | ||
45 | extern void pmdomain_set_autoidle(void); | ||
46 | |||
47 | static unsigned int omap24xx_sleep_save[OMAP24XX_SLEEP_SAVE_SIZE]; | ||
48 | |||
49 | void omap2_pm_idle(void) | ||
50 | { | ||
51 | local_irq_disable(); | ||
52 | local_fiq_disable(); | ||
53 | if (need_resched()) { | ||
54 | local_fiq_enable(); | ||
55 | local_irq_enable(); | ||
56 | return; | ||
57 | } | ||
58 | |||
59 | omap2_sram_idle(); | ||
60 | local_fiq_enable(); | ||
61 | local_irq_enable(); | ||
62 | } | ||
63 | |||
64 | static int omap2_pm_prepare(void) | ||
65 | { | ||
66 | /* We cannot sleep in idle until we have resumed */ | ||
67 | saved_idle = pm_idle; | ||
68 | pm_idle = NULL; | ||
69 | return 0; | ||
70 | } | ||
71 | |||
72 | static int omap2_pm_suspend(void) | ||
73 | { | ||
74 | return 0; | ||
75 | } | ||
76 | |||
77 | static int omap2_pm_enter(suspend_state_t state) | ||
78 | { | ||
79 | int ret = 0; | ||
80 | |||
81 | switch (state) | ||
82 | { | ||
83 | case PM_SUSPEND_STANDBY: | ||
84 | case PM_SUSPEND_MEM: | ||
85 | ret = omap2_pm_suspend(); | ||
86 | break; | ||
87 | default: | ||
88 | ret = -EINVAL; | ||
89 | } | ||
90 | |||
91 | return ret; | ||
92 | } | ||
93 | |||
94 | static void omap2_pm_finish(void) | ||
95 | { | ||
96 | pm_idle = saved_idle; | ||
97 | } | ||
98 | |||
99 | static struct platform_suspend_ops omap_pm_ops = { | ||
100 | .prepare = omap2_pm_prepare, | ||
101 | .enter = omap2_pm_enter, | ||
102 | .finish = omap2_pm_finish, | ||
103 | .valid = suspend_valid_only_mem, | ||
104 | }; | ||
105 | |||
106 | static int __init omap2_pm_init(void) | ||
107 | { | ||
108 | return 0; | ||
109 | } | ||
110 | |||
111 | __initcall(omap2_pm_init); | ||