| Message ID | 1385463886-9335-1-git-send-email-ulf.hansson@linaro.org |
|---|---|
| State | Superseded |
| Headers | show |
diff --git a/include/linux/pm.h b/include/linux/pm.h index a224c7f..7a830a7 100644 --- a/include/linux/pm.h +++ b/include/linux/pm.h @@ -320,6 +320,15 @@ struct dev_pm_ops { #define SET_RUNTIME_PM_OPS(suspend_fn, resume_fn, idle_fn) #endif +#ifdef CONFIG_PM +#define SET_PM_RUNTIME_PM_OPS(suspend_fn, resume_fn, idle_fn) \ + .runtime_suspend = suspend_fn, \ + .runtime_resume = resume_fn, \ + .runtime_idle = idle_fn, +#else +#define SET_PM_RUNTIME_PM_OPS(suspend_fn, resume_fn, idle_fn) +#endif + /* * Use this if you want to use the same suspend and resume callbacks for suspend * to RAM and hibernation.
It is allowed and will in many cases make sense to have the runtime PM callbacks to be defined for CONFIG_PM instead of CONFIG_PM_RUNTIME. Since the PM core disables runtime PM during system suspend, before the .suspend_late callbacks are invoked, drivers could at this point directly invoke it's runtime PM callbacks or even walk through it's bus or power domain, to put it's device into low power state. Use the new macro SET_PM_RUNTIME_PM_OPS in cases were the above makes sense. Make sure the callbacks are encapsulated within CONFIG_PM instead of CONFIG_PM_RUNTIME. Do note that the old macro SET_RUNTIME_PM_OPS, which is being quite widely used right now, requires the callbacks to be defined for CONFIG_PM_RUNTIME. In many cases it will certainly be convenient to convert to the new macro above, but still some cases are optimal for only CONFIG_PM_RUNTIME. Cc: Kevin Hilman <khilman@linaro.org> Cc: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org> --- include/linux/pm.h | 9 +++++++++ 1 file changed, 9 insertions(+)