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x86 / ACPI / sleep: Provide registration for acpi_suspend_lowlevel.

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Which by default will be x86_acpi_suspend_lowlevel.
This registration allows us to register another callback
if there is a need to use another platform specific callback.

Signed-off-by: Liang Tang <liang.tang@oracle.com>
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Tested-by: Ben Guthro <benjamin.guthro@citrix.com>
Acked-by: "H. Peter Anvin" <hpa@linux.intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
This commit is contained in:
Konrad Rzeszutek Wilk 2013-05-14 17:09:16 +00:00 • committed by Rafael J. Wysocki
parent 7d13205581
commit d6a77ead21
5 changed files with 14 additions and 3 deletions
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arch/x86/include/asm/acpi.h
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@ -111,7 +111,7 @@ static inline void acpi_disable_pci(void)
}
/* Low-level suspend routine. */
extern int acpi_suspend_lowlevel(void);
extern int (*acpi_suspend_lowlevel)(void);
/* Physical address to resume after wakeup */
#define acpi_wakeup_address ((unsigned long)(real_mode_header->wakeup_start))