296699de6b
Introduce CONFIG_SUSPEND representing the ability to enter system sleep states, such as the ACPI S3 state, and allow the user to choose SUSPEND and HIBERNATION independently of each other. Make HOTPLUG_CPU be selected automatically if SUSPEND or HIBERNATION has been chosen and the kernel is intended for SMP systems. Also, introduce CONFIG_PM_SLEEP which is automatically selected if CONFIG_SUSPEND or CONFIG_HIBERNATION is set and use it to select the code needed for both suspend and hibernation. The top-level power management headers and the ACPI code related to suspend and hibernation are modified to use the new definitions (the changes in drivers/acpi/sleep/main.c are, mostly, moving code to reduce the number of ifdefs). There are many other files in which CONFIG_PM can be replaced with CONFIG_PM_SLEEP or even with CONFIG_SUSPEND, but they can be updated in the future. Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
11 lines
337 B
C
11 lines
337 B
C
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extern u8 sleep_states[];
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extern int acpi_suspend (u32 state);
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extern void acpi_enable_wakeup_device_prep(u8 sleep_state);
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extern void acpi_enable_wakeup_device(u8 sleep_state);
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extern void acpi_disable_wakeup_device(u8 sleep_state);
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extern void acpi_gpe_sleep_prepare(u32 sleep_state);
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extern int acpi_sleep_prepare(u32 acpi_state);
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