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PM: runtime: Add DEFINE_RUNTIME_DEV_PM_OPS() macro

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A lot of drivers create a dev_pm_ops struct with the system sleep
suspend/resume callbacks set to pm_runtime_force_suspend() and
pm_runtime_force_resume().

These drivers can now use the DEFINE_RUNTIME_DEV_PM_OPS() macro, which
will use pm_runtime_force_{suspend,resume}() as the system sleep
callbacks, while having the same dead code removal characteristic that
is already provided by DEFINE_SIMPLE_DEV_PM_OPS().

Signed-off-by: Paul Cercueil <paul@crapouillou.net>
Acked-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Reviewed-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
This commit is contained in:
Paul Cercueil 2022-01-07 18:17:21 +00:00 committed by Rafael J. Wysocki
parent 0ae101fdd3
commit 9d86191900
2 changed files with 16 additions and 1 deletions
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3
include/linux/pm.h
View File

@ -414,7 +414,8 @@ const struct dev_pm_ops __maybe_unused name = { \
* .resume_early(), to the same routines as .runtime_suspend() and
* .runtime_resume(), respectively (and analogously for hibernation).
*
* Deprecated. You most likely don't want this macro.
* Deprecated. You most likely don't want this macro. Use
* DEFINE_RUNTIME_DEV_PM_OPS() instead.
*/
#define UNIVERSAL_DEV_PM_OPS(name, suspend_fn, resume_fn, idle_fn) \
const struct dev_pm_ops __maybe_unused name = { \

14
include/linux/pm_runtime.h
View File

@ -22,6 +22,20 @@
usage_count */
#define RPM_AUTO 0x08 /* Use autosuspend_delay */
/*
* Use this for defining a set of PM operations to be used in all situations
* (system suspend, hibernation or runtime PM).
*
* Note that the behaviour differs from the deprecated UNIVERSAL_DEV_PM_OPS()
* macro, which uses the provided callbacks for both runtime PM and system
* sleep, while DEFINE_RUNTIME_DEV_PM_OPS() uses pm_runtime_force_suspend()
* and pm_runtime_force_resume() for its system sleep callbacks.
*/
#define DEFINE_RUNTIME_DEV_PM_OPS(name, suspend_fn, resume_fn, idle_fn) \
_DEFINE_DEV_PM_OPS(name, pm_runtime_force_suspend, \
pm_runtime_force_resume, suspend_fn, \
resume_fn, idle_fn)
#ifdef CONFIG_PM
extern struct workqueue_struct *pm_wq;