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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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28
drivers/entropy/entropy_cc13xx_cc26xx.c
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@ -36,9 +36,6 @@ struct entropy_cc13xx_cc26xx_data {
Power_NotifyObj post_notify;
bool constrained;
#endif
#ifdef CONFIG_PM_DEVICE
enum device_pm_state pm_state;
#endif
};
static inline struct entropy_cc13xx_cc26xx_data *
@ -272,9 +269,11 @@ static int entropy_cc13xx_cc26xx_set_power_state(const struct device *dev,
{
struct entropy_cc13xx_cc26xx_data *data = get_dev_data(dev);
int ret = 0;
enum pm_device_state state;
if ((new_state == PM_DEVICE_STATE_ACTIVE) &&
(new_state != data->pm_state)) {
(void)pm_device_state_get(dev, &state);
if ((new_state == PM_DEVICE_STATE_ACTIVE) && (new_state != state)) {
Power_setDependency(PowerCC26XX_PERIPH_TRNG);
start_trng(data);
} else {
@ -282,12 +281,11 @@ static int entropy_cc13xx_cc26xx_set_power_state(const struct device *dev,
new_state == PM_DEVICE_STATE_SUSPEND ||
new_state == PM_DEVICE_STATE_OFF);
if (data->pm_state == PM_DEVICE_STATE_ACTIVE) {
if (state == PM_DEVICE_STATE_ACTIVE) {
stop_trng(data);
Power_releaseDependency(PowerCC26XX_PERIPH_TRNG);
}
}
data->pm_state = new_state;
return ret;
}
@ -296,19 +294,15 @@ static int entropy_cc13xx_cc26xx_pm_control(const struct device *dev,
uint32_t ctrl_command,
enum pm_device_state *state)
{
struct entropy_cc13xx_cc26xx_data *data = get_dev_data(dev);
int ret = 0;
if (ctrl_command == PM_DEVICE_STATE_SET) {
enum pm_device_state new_state = *state;
enum pm_device_state curr_state;
if (new_state != data->pm_state) {
ret = entropy_cc13xx_cc26xx_set_power_state(dev,
new_state);
(void)pm_device_state_get(dev, &curr_state);
if (*state != curr_state) {
ret = entropy_cc13xx_cc26xx_set_power_state(dev, *state);
}
} else {
__ASSERT_NO_MSG(ctrl_command == PM_DEVICE_STATE_GET);
*state = data->pm_state;
}
return ret;
@ -319,10 +313,6 @@ static int entropy_cc13xx_cc26xx_init(const struct device *dev)
{
struct entropy_cc13xx_cc26xx_data *data = get_dev_data(dev);
#ifdef CONFIG_PM_DEVICE
get_dev_data(dev)->pm_state = PM_DEVICE_STATE_ACTIVE;
#endif
/* Initialize driver data */
ring_buf_init(&data->pool, sizeof(data->data), data->data);