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| author | Rafael J. Wysocki <rjw@sisk.pl> | 2011-03-23 22:16:41 +0100 |
|---|---|---|
| committer | Rafael J. Wysocki <rjw@sisk.pl> | 2011-03-23 22:16:41 +0100 |
| commit | d47d81c0e9abdc3c88653fabff5beae82c949b09 (patch) | |
| tree | 1745f3316996e3cb0a02dcd7af90b88d836b6d17 /include/linux/pm.h | |
| parent | e00e56dfd3cf1d209ce630a2b440c91e4a30bbd3 (diff) | |
| download | lwn-d47d81c0e9abdc3c88653fabff5beae82c949b09.tar.gz lwn-d47d81c0e9abdc3c88653fabff5beae82c949b09.zip | |
Introduce ARCH_NO_SYSDEV_OPS config option (v2)
Introduce Kconfig option allowing architectures where sysdev
operations used during system suspend, resume and shutdown have been
completely replaced with struct sycore_ops operations to avoid
building sysdev code that will never be used.
Make callbacks in struct sys_device and struct sysdev_driver depend
on ARCH_NO_SYSDEV_OPS to allows us to verify if all of the references
have been actually removed from the code the given architecture
depends on.
Make x86 select ARCH_NO_SYSDEV_OPS.
Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
Diffstat (limited to 'include/linux/pm.h')
| -rw-r--r-- | include/linux/pm.h | 10 |
1 files changed, 8 insertions, 2 deletions
diff --git a/include/linux/pm.h b/include/linux/pm.h index 6618216bb973..512e09177e57 100644 --- a/include/linux/pm.h +++ b/include/linux/pm.h @@ -529,13 +529,19 @@ struct dev_power_domain { */ #ifdef CONFIG_PM_SLEEP -extern void device_pm_lock(void); +#ifndef CONFIG_ARCH_NO_SYSDEV_OPS +extern int sysdev_suspend(pm_message_t state); extern int sysdev_resume(void); +#else +static inline int sysdev_suspend(pm_message_t state) { return 0; } +static inline int sysdev_resume(void) { return 0; } +#endif + +extern void device_pm_lock(void); extern void dpm_resume_noirq(pm_message_t state); extern void dpm_resume_end(pm_message_t state); extern void device_pm_unlock(void); -extern int sysdev_suspend(pm_message_t state); extern int dpm_suspend_noirq(pm_message_t state); extern int dpm_suspend_start(pm_message_t state); |