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pm: fully initialize pm_device on Z_DEVICE_STATE_DEFINE

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The initialization of the struct pm_device pm field found in the device
state can be statically initialized without the need of doing it at
runtime.

Signed-off-by: Gerard Marull-Paretas <gerard.marull@nordicsemi.no>
This commit is contained in:
Gerard Marull-Paretas 2021-08-26 16:54:46 +02:00 • committed by Anas Nashif
commit 9917de4a1b
2 changed files with 6 additions and 14 deletions
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6
include/device.h
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@ -839,6 +839,12 @@ BUILD_ASSERT(sizeof(device_handle_t) == 2, "fix the linker scripts");
static struct device_state Z_DEVICE_STATE_NAME(dev_name) \
__attribute__((__section__(".z_devstate"))) = { \
.pm = { \
.usage = ATOMIC_INIT(0), \
.lock = Z_MUTEX_INITIALIZER( \
Z_DEVICE_STATE_NAME(dev_name).pm.lock), \
.condvar = Z_CONDVAR_INITIALIZER( \
Z_DEVICE_STATE_NAME(dev_name).pm.condvar),\
.state = PM_DEVICE_STATE_ACTIVE, \
.flags = ATOMIC_INIT(COND_CODE_1( \
DT_NODE_EXISTS(node_id), \
(DT_PROP_OR( \

14
kernel/device.c
View file

@ -25,19 +25,6 @@ extern const struct device __device_end[];
extern uint32_t __device_init_status_start[];
static inline void device_pm_state_init(const struct device *dev)
{
#ifdef CONFIG_PM_DEVICE
*dev->pm = (struct pm_device){
.usage = ATOMIC_INIT(0),
.lock = Z_MUTEX_INITIALIZER(dev->pm->lock),
.condvar = Z_CONDVAR_INITIALIZER(dev->pm->condvar),
.state = PM_DEVICE_STATE_ACTIVE,
.flags = ATOMIC_INIT(dev->pm->flags),
};
#endif /* CONFIG_PM_DEVICE */
}
/**
* @brief Initialize state for all static devices.
*
@ -49,7 +36,6 @@ void z_device_state_init(void)
const struct device *dev = __device_start;
while (dev < __device_end) {
device_pm_state_init(dev);
z_object_init(dev);
++dev;
}