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Introduce ARCH_NO_SYSDEV_OPS config option (v2)

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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>
This commit is contained in:
Rafael J. Wysocki
2011-03-23 22:16:41 +01:00
parent e00e56dfd3
commit d47d81c0e9
6 changed files with 27 additions and 5 deletions
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10
include/linux/pm.h
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@@ -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);