From 717e5d458e3bfca495a38dca61c64f274c049e46 Mon Sep 17 00:00:00 2001 From: Ulf Hansson Date: Tue, 10 Dec 2013 14:37:41 +0100 Subject: PM / Runtime: Implement the pm_generic_runtime functions for CONFIG_PM The pm_generic_runtime_suspend|resume functions were implemented within CONFIG_PM_RUNTIME. As we also may use runtime PM callbacks during system suspend, to put devices into low power state, we need to move the implementation of pm_generic_runtime_suspend|resume to CONFIG_PM. This change gives a power domain provision to invoke a platform driver's runtime PM callback from a power domain's system PM callback. This were earlier prevented by the platform bus, since it uses the pm_generic_runtime_suspend|resume functions as runtime PM callbacks. Cc: Kevin Hilman Cc: Alan Stern Signed-off-by: Ulf Hansson Signed-off-by: Rafael J. Wysocki --- include/linux/pm_runtime.h | 12 ++++++++---- 1 file changed, 8 insertions(+), 4 deletions(-) (limited to 'include/linux/pm_runtime.h') diff --git a/include/linux/pm_runtime.h b/include/linux/pm_runtime.h index 6fa7cea25da9..16c9a62fa1c0 100644 --- a/include/linux/pm_runtime.h +++ b/include/linux/pm_runtime.h @@ -23,6 +23,14 @@ usage_count */ #define RPM_AUTO 0x08 /* Use autosuspend_delay */ +#ifdef CONFIG_PM +extern int pm_generic_runtime_suspend(struct device *dev); +extern int pm_generic_runtime_resume(struct device *dev); +#else +static inline int pm_generic_runtime_suspend(struct device *dev) { return 0; } +static inline int pm_generic_runtime_resume(struct device *dev) { return 0; } +#endif + #ifdef CONFIG_PM_RUNTIME extern struct workqueue_struct *pm_wq; @@ -37,8 +45,6 @@ extern void pm_runtime_enable(struct device *dev); extern void __pm_runtime_disable(struct device *dev, bool check_resume); extern void pm_runtime_allow(struct device *dev); extern void pm_runtime_forbid(struct device *dev); -extern int pm_generic_runtime_suspend(struct device *dev); -extern int pm_generic_runtime_resume(struct device *dev); extern void pm_runtime_no_callbacks(struct device *dev); extern void pm_runtime_irq_safe(struct device *dev); extern void __pm_runtime_use_autosuspend(struct device *dev, bool use); @@ -142,8 +148,6 @@ static inline bool pm_runtime_active(struct device *dev) { return true; } static inline bool pm_runtime_status_suspended(struct device *dev) { return false; } static inline bool pm_runtime_enabled(struct device *dev) { return false; } -static inline int pm_generic_runtime_suspend(struct device *dev) { return 0; } -static inline int pm_generic_runtime_resume(struct device *dev) { return 0; } static inline void pm_runtime_no_callbacks(struct device *dev) {} static inline void pm_runtime_irq_safe(struct device *dev) {} -- cgit