android_kernel_motorola_sm6225/include/linux/pm_legacy.h
Len Brown 9f9adecd2d PM: ACPI and APM must not be enabled at the same time
ACPI and APM used "pm_active" to guarantee that
they would not be simultaneously active.

But pm_active was recently moved under CONFIG_PM_LEGACY,
so that without CONFIG_PM_LEGACY, pm_active became a NOP --
allowing ACPI and APM to both be simultaneously enabled.
This caused unpredictable results, including boot hangs.

Further, the code under CONFIG_PM_LEGACY is scheduled
for removal.

So replace pm_active with pm_flags.
pm_flags depends only on CONFIG_PM,
which is present for both CONFIG_APM and CONFIG_ACPI.

http://bugzilla.kernel.org/show_bug.cgi?id=9194

Signed-off-by: Len Brown <len.brown@intel.com>
Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
2008-01-11 12:26:47 -05:00

35 lines
638 B
C

#ifndef __LINUX_PM_LEGACY_H__
#define __LINUX_PM_LEGACY_H__
#ifdef CONFIG_PM_LEGACY
/*
* Register a device with power management
*/
struct pm_dev __deprecated *
pm_register(pm_dev_t type, unsigned long id, pm_callback callback);
/*
* Send a request to all devices
*/
int __deprecated pm_send_all(pm_request_t rqst, void *data);
#else /* CONFIG_PM_LEGACY */
static inline struct pm_dev *pm_register(pm_dev_t type,
unsigned long id,
pm_callback callback)
{
return NULL;
}
static inline int pm_send_all(pm_request_t rqst, void *data)
{
return 0;
}
#endif /* CONFIG_PM_LEGACY */
#endif /* __LINUX_PM_LEGACY_H__ */