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author | Paul Cercueil <paul@crapouillou.net> | 2022-08-08 19:40:38 +0200 |
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committer | Rafael J. Wysocki <rafael.j.wysocki@intel.com> | 2022-10-04 20:52:38 +0200 |
commit | 34e1ed189fab1b7533befb266b96051104c1deb6 (patch) | |
tree | 359e5a58904def09212b132ac55e3435d685c49d /tools/power | |
parent | c79e6fa98ca8628556a01fe277022bda64829fdf (diff) | |
download | lwn-34e1ed189fab1b7533befb266b96051104c1deb6.tar.gz lwn-34e1ed189fab1b7533befb266b96051104c1deb6.zip |
PM: Improve EXPORT_*_DEV_PM_OPS macros
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: Paul Cercueil <paul@crapouillou.net>
Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Diffstat (limited to 'tools/power')
0 files changed, 0 insertions, 0 deletions