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ACPI / Sleep: Rework enabling wakeup devices 

There is no reason why acpi_enable_wakeup_device() should be called
with interrupts disabled, because it doesn't access hardware.  Thus
it is possible to move it next to acpi_enable_wakeup_device_prep()
and make the ACPI suspend, hibernate and poweroff code more
straightforward.

Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
Signed-off-by: Len Brown <len.brown@intel.com>
This commit is contained in:
Rafael J. Wysocki 2010-07-02 00:12:26 +02:00 committed by Len Brown
parent e96c4b081d
commit 25bed55753
1 changed files with 2 additions and 4 deletions
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6
drivers/acpi/sleep.c
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@ -70,10 +70,11 @@ static int acpi_sleep_prepare(u32 acpi_state)
}
ACPI_FLUSH_CPU_CACHE();
acpi_enable_wakeup_device_prep(acpi_state);
#endif
printk(KERN_INFO PREFIX "Preparing to enter system sleep state S%d\n",
acpi_state);
acpi_enable_wakeup_device_prep(acpi_state);
acpi_enable_wakeup_device(acpi_state);
acpi_enter_sleep_state_prep(acpi_state);
return 0;
}
@ -238,7 +239,6 @@ static int acpi_suspend_enter(suspend_state_t pm_state)
}
local_irq_save(flags);
acpi_enable_wakeup_device(acpi_state);
switch (acpi_state) {
case ACPI_STATE_S1:
barrier();
@ -442,7 +442,6 @@ static int acpi_hibernation_enter(void)
ACPI_FLUSH_CPU_CACHE();
local_irq_save(flags);
acpi_enable_wakeup_device(ACPI_STATE_S4);
/* This shouldn't return. If it returns, we have a problem */
status = acpi_enter_sleep_state(ACPI_STATE_S4);
/* Reprogram control registers and execute _BFS */
@ -696,7 +695,6 @@ static void acpi_power_off(void)
/* acpi_sleep_prepare(ACPI_STATE_S5) should have already been called */
printk(KERN_DEBUG "%s called\n", __func__);
local_irq_disable();
acpi_enable_wakeup_device(ACPI_STATE_S5);
acpi_enter_sleep_state(ACPI_STATE_S5);
}