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authorUlf Hansson <ulf.hansson@linaro.org>2013-12-10 17:37:41 +0400
committerRafael J. Wysocki <rafael.j.wysocki@intel.com>2013-12-22 04:39:58 +0400
commit717e5d458e3bfca495a38dca61c64f274c049e46 (patch)
treeaae88934c12c3222e4e44d1b3081626bf6199826 /include/linux/pm_runtime.h
parentd9fb563d3cdfd774ee0a7c03e98bb305cdd613eb (diff)
downloadlinux-717e5d458e3bfca495a38dca61c64f274c049e46.tar.xz
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 <khilman@linaro.org> Cc: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Diffstat (limited to 'include/linux/pm_runtime.h')
-rw-r--r--include/linux/pm_runtime.h12
1 files changed, 8 insertions, 4 deletions
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) {}