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ACPI / PM: Consolidate suspend-specific and hibernate-specific code 

Move some suspend-specific and hibernate-specific code from
acpi_sleep_init() into separate functions to get rid of explicit
#ifdefs in acpi_sleep_init().  Use pr_info() to start and pr_cont()
to continue printing the supported ACPI sleep states line.

Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
This commit is contained in:
Rafael J. Wysocki 2013-01-17 14:11:09 +01:00
parent 9ce4e60711
commit 02040f0bba
1 changed files with 51 additions and 36 deletions
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87
drivers/acpi/sleep.c
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@ -579,7 +579,28 @@ static const struct platform_suspend_ops acpi_suspend_ops_old = {
.end = acpi_pm_end,
.recover = acpi_pm_finish,
};
#endif /* CONFIG_SUSPEND */
static void acpi_sleep_suspend_setup(void)
{
int i;
for (i = ACPI_STATE_S1; i < ACPI_STATE_S4; i++) {
acpi_status status;
u8 type_a, type_b;
status = acpi_get_sleep_type_data(i, &type_a, &type_b);
if (ACPI_SUCCESS(status)) {
sleep_states[i] = 1;
pr_cont(" S%d", i);
}
}
suspend_set_ops(old_suspend_ordering ?
&acpi_suspend_ops_old : &acpi_suspend_ops);
}
#else /* !CONFIG_SUSPEND */
static inline void acpi_sleep_suspend_setup(void) {}
#endif /* !CONFIG_SUSPEND */
#ifdef CONFIG_HIBERNATION
static unsigned long s4_hardware_signature;
@ -700,7 +721,30 @@ static const struct platform_hibernation_ops acpi_hibernation_ops_old = {
.restore_cleanup = acpi_pm_thaw,
.recover = acpi_pm_finish,
};
#endif /* CONFIG_HIBERNATION */
static void acpi_sleep_hibernate_setup(void)
{
acpi_status status;
u8 type_a, type_b;
status = acpi_get_sleep_type_data(ACPI_STATE_S4, &type_a, &type_b);
if (ACPI_FAILURE(status))
return;
hibernation_set_ops(old_suspend_ordering ?
&acpi_hibernation_ops_old : &acpi_hibernation_ops);
sleep_states[ACPI_STATE_S4] = 1;
pr_cont(KERN_CONT " S4");
if (nosigcheck)
return;
acpi_get_table(ACPI_SIG_FACS, 1, (struct acpi_table_header **)&facs);
if (facs)
s4_hardware_signature = facs->hardware_signature;
}
#else /* !CONFIG_HIBERNATION */
static inline void acpi_sleep_hibernate_setup(void) {}
#endif /* !CONFIG_HIBERNATION */
int acpi_suspend(u32 acpi_state)
{
@ -736,9 +780,6 @@ int __init acpi_sleep_init(void)
{
acpi_status status;
u8 type_a, type_b;
#ifdef CONFIG_SUSPEND
int i = 0;
#endif
if (acpi_disabled)
return 0;
@ -746,45 +787,19 @@ int __init acpi_sleep_init(void)
acpi_sleep_dmi_check();
sleep_states[ACPI_STATE_S0] = 1;
printk(KERN_INFO PREFIX "(supports S0");
pr_info(PREFIX "(supports S0");
#ifdef CONFIG_SUSPEND
for (i = ACPI_STATE_S1; i < ACPI_STATE_S4; i++) {
status = acpi_get_sleep_type_data(i, &type_a, &type_b);
if (ACPI_SUCCESS(status)) {
sleep_states[i] = 1;
printk(KERN_CONT " S%d", i);
}
}
acpi_sleep_suspend_setup();
acpi_sleep_hibernate_setup();
suspend_set_ops(old_suspend_ordering ?
&acpi_suspend_ops_old : &acpi_suspend_ops);
#endif
#ifdef CONFIG_HIBERNATION
status = acpi_get_sleep_type_data(ACPI_STATE_S4, &type_a, &type_b);
if (ACPI_SUCCESS(status)) {
hibernation_set_ops(old_suspend_ordering ?
&acpi_hibernation_ops_old : &acpi_hibernation_ops);
sleep_states[ACPI_STATE_S4] = 1;
printk(KERN_CONT " S4");
if (!nosigcheck) {
acpi_get_table(ACPI_SIG_FACS, 1,
(struct acpi_table_header **)&facs);
if (facs)
s4_hardware_signature =
facs->hardware_signature;
}
}
#endif
status = acpi_get_sleep_type_data(ACPI_STATE_S5, &type_a, &type_b);
if (ACPI_SUCCESS(status)) {
sleep_states[ACPI_STATE_S5] = 1;
printk(KERN_CONT " S5");
pr_cont(" S5");
pm_power_off_prepare = acpi_power_off_prepare;
pm_power_off = acpi_power_off;
}
printk(KERN_CONT ")\n");
pr_cont(")\n");
/*
* Register the tts_notifier to reboot notifier list so that the _TTS
* object can also be evaluated when the system enters S5.