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    Subject[PATCH v2 4/6] PM: runtime: Add DEFINE_RUNTIME_DEV_PM_OPS() macro
    Date
    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>
    ---

    Notes:
    v2: No change

    include/linux/pm.h | 3 +++
    include/linux/pm_runtime.h | 14 ++++++++++++++
    2 files changed, 17 insertions(+)

    diff --git a/include/linux/pm.h b/include/linux/pm.h
    index b82f40e701ab..43fa4f828a62 100644
    --- a/include/linux/pm.h
    +++ b/include/linux/pm.h
    @@ -410,6 +410,9 @@ const struct dev_pm_ops __maybe_unused name = { \
    * suspend and "early" resume callback pointers, .suspend_late() and
    * .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. 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 = { \
    diff --git a/include/linux/pm_runtime.h b/include/linux/pm_runtime.h
    index 016de5776b6d..4af454d29281 100644
    --- a/include/linux/pm_runtime.h
    +++ b/include/linux/pm_runtime.h
    @@ -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;

    --
    2.34.1
    \
     
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