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Merge branch 'bugfix/esp_idf_ulp_wakeupcauses_record' into 'master'

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fix(ulp): record wakeup causes before lp core request sleep

Closes PM-677 and IDFCI-8878

See merge request espressif/esp-idf!46467
This commit is contained in:
He Binglin
2026-04-22 20:13:17 +08:00
parent 1365d01012 6ce373ccfb
commit 92e1d04b4f
32 changed files with 283 additions and 20 deletions
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components/esp_hw_support/sleep_modes.c
+13
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@@ -81,6 +81,9 @@
#endif
#include "hal/temperature_sensor_hal.h"
#include "hal/mspi_ll.h"
#if SOC_LP_CORE_HW_AUTO_CLRWAKEUPCAUSE
#include "hal/lp_aon_hal.h"
#endif
#include "sdkconfig.h"
#include "esp_rom_serial_output.h"
@@ -1098,6 +1101,7 @@ static esp_err_t SLEEP_FN_ATTR esp_sleep_start(uint32_t sleep_flags, uint32_t cl
#if CONFIG_ULP_COPROC_TYPE_LP_CORE
if (s_config.wakeup_triggers & (RTC_LP_CORE_TRIG_EN | RTC_LP_CORE_TRAP_TRIG_EN)) {
pmu_ll_hp_clear_sw_intr_status(&PMU);
pmu_ll_hp_clear_lp_cpu_exc_intr_status(&PMU);
}
#endif
#endif // CONFIG_ULP_COPROC_ENABLED
@@ -2533,6 +2537,15 @@ uint32_t esp_sleep_get_wakeup_causes(void)
uint32_t wakeup_cause_raw = rtc_cntl_ll_get_wakeup_cause();
#endif
#if SOC_LP_CORE_HW_AUTO_CLRWAKEUPCAUSE
/* LP store register to read wakeup cause saved by LP core.
* Must match the register used in lp_core_utils.c */
uint32_t lp_core_wakeup_cause_status0 = lp_aon_hal_load_wakeup_cause();
if ((wakeup_cause_raw == 0) && (lp_core_wakeup_cause_status0 != 0)) {
wakeup_cause_raw = lp_core_wakeup_cause_status0;
}
#endif
if (wakeup_cause_raw & RTC_TIMER_TRIG_EN) {
wakeup_cause |= BIT(ESP_SLEEP_WAKEUP_TIMER);
}