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authorRafael J. Wysocki <rjw@sisk.pl>2010-07-02 00:12:26 +0200
committerLen Brown <len.brown@intel.com>2010-07-07 00:29:47 +0200
commit25bed55753b8cf243406e8837990b55946c5278d (patch)
treeb0c5549e45036cbf93a90e8d7c66a6148c5a8c61
parentACPI / Sleep: Free NVS copy if suspending of devices fails (diff)
downloadlinux-25bed55753b8cf243406e8837990b55946c5278d.tar.xz
linux-25bed55753b8cf243406e8837990b55946c5278d.zip
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>
-rw-r--r--drivers/acpi/sleep.c6
1 files changed, 2 insertions, 4 deletions
diff --git a/drivers/acpi/sleep.c b/drivers/acpi/sleep.c
index da68ed24f4c5..8704ca78a8c4 100644
--- a/drivers/acpi/sleep.c
+++ b/drivers/acpi/sleep.c
@@ -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);
}