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authorLinus Torvalds <torvalds@linux-foundation.org>2011-03-16 12:24:44 -0400
committerLinus Torvalds <torvalds@linux-foundation.org>2011-03-16 12:24:44 -0400
commitfc82e1d59a24cbac01c49d4eb3b28d6abc26a5f4 (patch)
tree5e01479d69e69dbbe483044b39afd2aa99d4f2b2 /kernel/power/hibernate.c
parent48d5f6731837f0ec9a0e19ca763aa17d58385a98 (diff)
parentbea3864fb627d110933cfb8babe048b63c4fc76e (diff)
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/suspend-2.6
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/suspend-2.6: (21 commits) PM / Hibernate: Reduce autotuned default image size PM / Core: Introduce struct syscore_ops for core subsystems PM PM QoS: Make pm_qos settings readable PM / OPP: opp_find_freq_exact() documentation fix PM: Documentation/power/states.txt: fix repetition PM: Make system-wide PM and runtime PM treat subsystems consistently PM: Simplify kernel/power/Kconfig PM: Add support for device power domains PM: Drop pm_flags that is not necessary PM: Allow pm_runtime_suspend() to succeed during system suspend PM: Clean up PM_TRACE dependencies and drop unnecessary Kconfig option PM: Remove CONFIG_PM_OPS PM: Reorder power management Kconfig options PM: Make CONFIG_PM depend on (CONFIG_PM_SLEEP || CONFIG_PM_RUNTIME) PM / ACPI: Remove references to pm_flags from bus.c PM: Do not create wakeup sysfs files for devices that cannot wake up USB / Hub: Do not call device_set_wakeup_capable() under spinlock PM: Use appropriate printk() priority level in trace.c PM / Wakeup: Don't update events_check_enabled in pm_get_wakeup_count() PM / Wakeup: Make pm_save_wakeup_count() work as documented ...
Diffstat (limited to 'kernel/power/hibernate.c')
-rw-r--r--kernel/power/hibernate.c9
1 files changed, 9 insertions, 0 deletions
diff --git a/kernel/power/hibernate.c b/kernel/power/hibernate.c
index 1832bd264219..aeabd26e3342 100644
--- a/kernel/power/hibernate.c
+++ b/kernel/power/hibernate.c
@@ -23,6 +23,7 @@
23#include <linux/cpu.h> 23#include <linux/cpu.h>
24#include <linux/freezer.h> 24#include <linux/freezer.h>
25#include <linux/gfp.h> 25#include <linux/gfp.h>
26#include <linux/syscore_ops.h>
26#include <scsi/scsi_scan.h> 27#include <scsi/scsi_scan.h>
27#include <asm/suspend.h> 28#include <asm/suspend.h>
28 29
@@ -272,6 +273,8 @@ static int create_image(int platform_mode)
272 local_irq_disable(); 273 local_irq_disable();
273 274
274 error = sysdev_suspend(PMSG_FREEZE); 275 error = sysdev_suspend(PMSG_FREEZE);
276 if (!error)
277 error = syscore_suspend();
275 if (error) { 278 if (error) {
276 printk(KERN_ERR "PM: Some system devices failed to power down, " 279 printk(KERN_ERR "PM: Some system devices failed to power down, "
277 "aborting hibernation\n"); 280 "aborting hibernation\n");
@@ -295,6 +298,7 @@ static int create_image(int platform_mode)
295 } 298 }
296 299
297 Power_up: 300 Power_up:
301 syscore_resume();
298 sysdev_resume(); 302 sysdev_resume();
299 /* NOTE: dpm_resume_noirq() is just a resume() for devices 303 /* NOTE: dpm_resume_noirq() is just a resume() for devices
300 * that suspended with irqs off ... no overall powerup. 304 * that suspended with irqs off ... no overall powerup.
@@ -403,6 +407,8 @@ static int resume_target_kernel(bool platform_mode)
403 local_irq_disable(); 407 local_irq_disable();
404 408
405 error = sysdev_suspend(PMSG_QUIESCE); 409 error = sysdev_suspend(PMSG_QUIESCE);
410 if (!error)
411 error = syscore_suspend();
406 if (error) 412 if (error)
407 goto Enable_irqs; 413 goto Enable_irqs;
408 414
@@ -429,6 +435,7 @@ static int resume_target_kernel(bool platform_mode)
429 restore_processor_state(); 435 restore_processor_state();
430 touch_softlockup_watchdog(); 436 touch_softlockup_watchdog();
431 437
438 syscore_resume();
432 sysdev_resume(); 439 sysdev_resume();
433 440
434 Enable_irqs: 441 Enable_irqs:
@@ -516,6 +523,7 @@ int hibernation_platform_enter(void)
516 523
517 local_irq_disable(); 524 local_irq_disable();
518 sysdev_suspend(PMSG_HIBERNATE); 525 sysdev_suspend(PMSG_HIBERNATE);
526 syscore_suspend();
519 if (pm_wakeup_pending()) { 527 if (pm_wakeup_pending()) {
520 error = -EAGAIN; 528 error = -EAGAIN;
521 goto Power_up; 529 goto Power_up;
@@ -526,6 +534,7 @@ int hibernation_platform_enter(void)
526 while (1); 534 while (1);
527 535
528 Power_up: 536 Power_up:
537 syscore_resume();
529 sysdev_resume(); 538 sysdev_resume();
530 local_irq_enable(); 539 local_irq_enable();
531 enable_nonboot_cpus(); 540 enable_nonboot_cpus();