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ACPI / Sleep: Consolidate suspend and hibernation routines 

Some hibernation and suspend routines can be merged, which reduces
the complexity of code a bit.

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 00:14:09 +02:00 committed by Len Brown
parent 78f5f02316
commit c5f7a1bb65
1 changed files with 16 additions and 26 deletions
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42
drivers/acpi/sleep.c
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@ -104,6 +104,16 @@ static int acpi_pm_freeze(void)
return 0;
}
/**
* acpi_pre_suspend - Enable wakeup devices, "freeze" EC and save NVS.
*/
static int acpi_pm_pre_suspend(void)
{
acpi_pm_freeze();
suspend_nvs_save();
return 0;
}
/**
* __acpi_pm_prepare - Prepare the platform to enter the target state.
*
@ -113,11 +123,9 @@ static int acpi_pm_freeze(void)
static int __acpi_pm_prepare(void)
{
int error = acpi_sleep_prepare(acpi_target_sleep_state);
suspend_nvs_save();
if (error)
acpi_target_sleep_state = ACPI_STATE_S0;
return error;
}
@ -128,9 +136,8 @@ static int __acpi_pm_prepare(void)
static int acpi_pm_prepare(void)
{
int error = __acpi_pm_prepare();
if (!error)
acpi_pm_freeze();
acpi_pm_pre_suspend();
return error;
}
@ -322,9 +329,9 @@ static struct platform_suspend_ops acpi_suspend_ops = {
static int acpi_suspend_begin_old(suspend_state_t pm_state)
{
int error = acpi_suspend_begin(pm_state);
if (!error)
error = __acpi_pm_prepare();
return error;
}
@ -335,7 +342,7 @@ static int acpi_suspend_begin_old(suspend_state_t pm_state)
static struct platform_suspend_ops acpi_suspend_ops_old = {
.valid = acpi_suspend_state_valid,
.begin = acpi_suspend_begin_old,
.prepare_late = acpi_pm_freeze,
.prepare_late = acpi_pm_pre_suspend,
.enter = acpi_suspend_enter,
.wake = acpi_suspend_finish,
.end = acpi_pm_end,
@ -423,16 +430,6 @@ static int acpi_hibernation_begin(void)
return error;
}
static int acpi_hibernation_pre_snapshot(void)
{
int error = acpi_pm_prepare();
if (!error)
suspend_nvs_save();
return error;
}
static int acpi_hibernation_enter(void)
{
acpi_status status = AE_OK;
@ -480,7 +477,7 @@ static void acpi_pm_thaw(void)
static struct platform_hibernation_ops acpi_hibernation_ops = {
.begin = acpi_hibernation_begin,
.end = acpi_pm_end,
.pre_snapshot = acpi_hibernation_pre_snapshot,
.pre_snapshot = acpi_pm_prepare,
.finish = acpi_pm_finish,
.prepare = acpi_pm_prepare,
.enter = acpi_hibernation_enter,
@ -516,13 +513,6 @@ static int acpi_hibernation_begin_old(void)
return error;
}
static int acpi_hibernation_pre_snapshot_old(void)
{
acpi_pm_freeze();
suspend_nvs_save();
return 0;
}
/*
* The following callbacks are used if the pre-ACPI 2.0 suspend ordering has
* been requested.
@ -530,7 +520,7 @@ static int acpi_hibernation_pre_snapshot_old(void)
static struct platform_hibernation_ops acpi_hibernation_ops_old = {
.begin = acpi_hibernation_begin_old,
.end = acpi_pm_end,
.pre_snapshot = acpi_hibernation_pre_snapshot_old,
.pre_snapshot = acpi_pm_pre_suspend,
.prepare = acpi_pm_freeze,
.finish = acpi_pm_finish,
.enter = acpi_hibernation_enter,