[components][pm]add check for pm initialize.
static struct rt_pm _pm;
static uint8_t _pm_default_sleep = RT_PM_DEFAULT_SLEEP_MODE;
static struct rt_pm_notify _pm_notify;
+static uint8_t _pm_init_flag = 0;
#define RT_PM_TICKLESS_THRESH (2)
@@ -215,6 +216,9 @@ void rt_system_power_manager(void)
{
uint8_t mode;
+ if (_pm_init_flag == 0)
+ return;
+
/* CPU frequency scaling according to the runing mode settings */
_pm_frequency_scaling(&_pm);
@@ -234,6 +238,9 @@ void rt_pm_request(uint8_t mode)
rt_base_t level;
struct rt_pm *pm;
+ if (_pm_init_flag == 0)
+ return;
+
if (mode > (PM_SLEEP_MODE_MAX - 1))
return;
@@ -256,6 +263,9 @@ void rt_pm_release(uint8_t mode)
rt_ubase_t level;
struct rt_pm *pm;
+ if (_pm_init_flag == 0)
+ return;
+
if (mode > (PM_SLEEP_MODE_MAX - 1))
return;
@@ -423,6 +433,9 @@ int rt_pm_run_enter(uint8_t mode)
rt_base_t level;
struct rt_pm *pm;
+ if (_pm_init_flag == 0)
+ return -RT_EIO;
+
if (mode > PM_RUN_MODE_MAX)
return -RT_EINVAL;
@@ -486,6 +499,8 @@ void rt_system_pm_init(const struct rt_pm_ops *ops,
pm->device_pm = RT_NULL;
pm->device_pm_number = 0;
+
+ _pm_init_flag = 1;
}
#ifdef RT_USING_FINSH
