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pm: device: remove usage of local states

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The device PM subsystem already holds the device state, so there is no
need to keep duplicates inside the device. The pm_device_state_get has
been refactored to just return the device state. Note that this is still
not safe, but the same applied to the previous implementation. This
problem will be addressed later.

Signed-off-by: Gerard Marull-Paretas <gerard.marull@nordicsemi.no>
This commit is contained in:
Gerard Marull-Paretas 2021-06-04 17:41:39 +02:00 • committed by Anas Nashif
commit c2cf1ad203
48 changed files with 198 additions and 715 deletions
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14
include/pm/device.h
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@ -121,20 +121,16 @@ int pm_device_state_set(const struct device *dev,
enum pm_device_state device_power_state);
/**
* @brief Call the get power state function of a device
* @brief Obtain the power state of a device.
*
* This function lets the caller know the current device
* power state at any time. This state will be one of the defined
* power states allowed for the devices in that system
*
* @param dev pointer to device structure of the driver instance.
* @param device_power_state Device power state to be filled by the device
* @param dev Device instance.
* @param state Pointer where device power state will be stored.
*
* @retval 0 If successful.
* @retval Errno Negative errno code if failure.
* @retval -ENOSYS If device does not implement power management.
*/
int pm_device_state_get(const struct device *dev,
enum pm_device_state *device_power_state);
enum pm_device_state *state);
#ifdef CONFIG_PM_DEVICE
/**