On Wed, Jan 15, 2014 at 12:14:46AM +0100, Rafael J. Wysocki wrote:
> From: Rafael J. Wysocki <rafael.j.wysocki@xxxxxxxxx>
>
> Add a new helper routine, pm_runtime_enabled_and_suspended(), to
> allow subsystems (or PM domains) to check the runtime PM status of
> devices during system suspend (possibly to avoid resuming those
> devices upfront at that time).
>
> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@xxxxxxxxx>
> ---
> drivers/base/power/runtime.c | 28 ++++++++++++++++++++++++++++
> include/linux/pm_runtime.h | 2 ++
> 2 files changed, 30 insertions(+)
>
> Index: linux-pm/include/linux/pm_runtime.h
> ===================================================================
> --- linux-pm.orig/include/linux/pm_runtime.h
> +++ linux-pm/include/linux/pm_runtime.h
> @@ -53,6 +53,7 @@ extern unsigned long pm_runtime_autosusp
> extern void pm_runtime_update_max_time_suspended(struct device *dev,
> s64 delta_ns);
> extern void pm_runtime_set_memalloc_noio(struct device *dev, bool enable);
> +extern bool pm_runtime_enabled_and_suspended(struct device *dev);
>
> static inline bool pm_children_suspended(struct device *dev)
> {
> @@ -161,6 +162,7 @@ static inline unsigned long pm_runtime_a
> struct device *dev) { return 0; }
> static inline void pm_runtime_set_memalloc_noio(struct device *dev,
> bool enable){}
> +static inline bool pm_runtime_enabled_and_suspended(struct device *dev) { return false };
The above probably doesn't compile if !CONFIG_PM_RUNTIME because of the
misplaced semicolon.
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