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authorRafael J. Wysocki <rjw@sisk.pl>2011-03-23 22:16:41 +0100
committerRafael J. Wysocki <rjw@sisk.pl>2011-03-23 22:16:41 +0100
commitd47d81c0e9abdc3c88653fabff5beae82c949b09 (patch)
tree1745f3316996e3cb0a02dcd7af90b88d836b6d17 /include/linux/pm.h
parente00e56dfd3cf1d209ce630a2b440c91e4a30bbd3 (diff)
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.h10
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);