At the moment application which chosen policy based power
management does not have an option to override decision
taken by the policy (it could only disable some power
states).
This commit adds the sys_pm_force_power_state() method,
which allow the application to choose power state used
when OS decide to suspend the SoC.
Signed-off-by: Piotr Zięcik <piotr.ziecik@nordicsemi.no>
The power management framework used two different abstractions
to describe power states. The SYS_PM_* given coarse information
what kind of power state (low power or deep sleep) was used,
while the SYS_POWER_STATE_* abstraction provided information
about particular power mode.
This commit removes the SYS_PM_* abstraction as the same
information is already carried in SYS_POWER_STATE_*.
Signed-off-by: Piotr Zięcik <piotr.ziecik@nordicsemi.no>
This commit enables fine-grained power state locking.
Now, each power state could be independently enabled or disabled.
Signed-off-by: Piotr Zięcik <piotr.ziecik@nordicsemi.no>
The power subsystems call the sys_pm_notify_lps_entry()
and sys_pm_notify_lps_exit() to notify application that
given power mode has been entered and exited. This commit
adds weak implementation of these functions in order to
not force applications to implement its own empty stubs.
Signed-off-by: Piotr Zięcik <piotr.ziecik@nordicsemi.no>
Add API's to enable/disable System PM states so that an
an application can enable/disable system from entering
certain Low Power states.
Signed-off-by: Ramakrishna Pallala <ramakrishna.pallala@intel.com>
Changed LOG_MODULE_REGISTER and LOG_MODULE_DECLARE macros to take log
level as optional parameter. LOG_MODULE_DECLARE can now also be used
in static inline functions in headers. Added LOG_LEVEL_SET macro
which is used when instance logging API is used to indicate maximal
log level compiled into the file.
Signed-off-by: Krzysztof Chruscinski <krzysztof.chruscinski@nordicsemi.no>
Add the necessary PM hooks like Low Power state entry
count and residencies for logging and debugging purposes.
Signed-off-by: Ramakrishna Pallala <ramakrishna.pallala@intel.com>
Add support for adding and selecting pluggable PM policies
which can be enabled based on the application needs.
Also added a dummy policy for demonstration purpose which
simply loops over the supported PM states.
Signed-off-by: Ramakrishna Pallala <ramakrishna.pallala@intel.com>
Rather than having some implied name for the logging name, explicitly
pass it in the macros LOG_MODULE_REGISTER & LOG_MODULE_DECLARE.
Signed-off-by: Kumar Gala <kumar.gala@linaro.org>
Signed-off-by: Krzysztof Chruscinski <krzysztof.chruscinski@nordicsemi.no>
Add support for OS managed Power Management framework for Zephyr
under 'subsys/power'. This framework takes care of implementing
the _sys_soc_suspend/_sys_soc_resume API's, a PM policy based on
SoC Low Power residencies and also provides necessary API's to
do devices suspend and resume.
Also add necessary changes to support the existing Application
managed Power Management framework.
Signed-off-by: Ramakrishna Pallala <ramakrishna.pallala@intel.com>
Piotr Zięcik