• P
    PM: Improve EXPORT_*_DEV_PM_OPS macros · 34e1ed18
    Paul Cercueil 提交于
    Update the _EXPORT_DEV_PM_OPS() internal macro. It was not used anywhere
    outside pm.h and pm_runtime.h, so it is safe to update it.
    
    Before, this macro would take a few parameters to be used as sleep and
    runtime callbacks. This made it unsuitable to use with different
    callbacks, for instance the "noirq" ones.
    
    It is now semantically different: instead of creating a conditionally
    exported dev_pm_ops structure, it only contains part of the definition.
    
    This macro should however never be used directly (hence the trailing
    underscore). Instead, the following four macros are provided:
    - EXPORT_DEV_PM_OPS(name)
    - EXPORT_GPL_DEV_PM_OPS(name)
    - EXPORT_NS_DEV_PM_OPS(name, ns)
    - EXPORT_NS_GPL_DEV_PM_OPS(name, ns)
    
    For instance, it is now possible to conditionally export noirq
    suspend/resume PM functions like this:
    
    EXPORT_GPL_DEV_PM_OPS(foo_pm_ops) = {
        NOIRQ_SYSTEM_SLEEP_PM_OPS(suspend_fn, resume_fn)
    };
    
    The existing helper macros EXPORT_*_SIMPLE_DEV_PM_OPS() and
    EXPORT_*_RUNTIME_DEV_PM_OPS() have been updated to use these new macros.
    Signed-off-by: NPaul Cercueil <paul@crapouillou.net>
    Reviewed-by: NJonathan Cameron <Jonathan.Cameron@huawei.com>
    Signed-off-by: NRafael J. Wysocki <rafael.j.wysocki@intel.com>
    34e1ed18
pm.h 35.4 KB