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change(pm): add pm lock count check before reg backup

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This commit is contained in:
cjin 2023-10-13 18:22:35 +08:00
parent 15df836ab4
commit c1798adac6
1 changed files with 19 additions and 1 deletions
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20
components/esp_pm/pm_impl.c
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@ -196,6 +196,9 @@ static const char* TAG = "pm";
static void do_switch(pm_mode_t new_mode);
static void leave_idle(void);
static void on_freq_update(uint32_t old_ticks_per_us, uint32_t ticks_per_us);
#if SOC_PM_RETENTION_HAS_CLOCK_BUG
static size_t esp_pm_get_total_lock_count(void);
#endif // SOC_PM_RETENTION_HAS_CLOCK_BUG
pm_mode_t esp_pm_impl_get_mode(esp_pm_lock_type_t type, int arg)
{
@ -972,7 +975,9 @@ void esp_pm_impl_idle_hook(void)
it is necessary to back up the mac/bb REG before disabling the PLL clock.
*/
#if SOC_PM_RETENTION_HAS_CLOCK_BUG
mac_bb_power_down_prepare();
if (esp_pm_get_total_lock_count() <= portNUM_PROCESSORS) {
mac_bb_power_down_prepare();
}
#endif // SOC_PM_RETENTION_HAS_CLOCK_BUG
esp_pm_lock_release(s_rtos_lock_handle[core_id]);
s_core_idle[core_id] = true;
@ -1037,3 +1042,16 @@ void esp_pm_impl_waiti(void)
esp_cpu_wait_for_intr();
#endif // CONFIG_FREERTOS_USE_TICKLESS_IDLE
}
#if SOC_PM_RETENTION_HAS_CLOCK_BUG
static size_t esp_pm_get_total_lock_count(void)
{
size_t all_mode_lock_counts = 0;
portENTER_CRITICAL(&s_switch_lock);
for (int i = 0; i < ARRAY_SIZE(s_mode_lock_counts); i++) {
all_mode_lock_counts += s_mode_lock_counts[i];
}
portEXIT_CRITICAL(&s_switch_lock);
return all_mode_lock_counts;
}
#endif // SOC_PM_RETENTION_HAS_CLOCK_BUG