diff --git a/components/esp_hw_support/sleep_modes.c b/components/esp_hw_support/sleep_modes.c index 34af7e70954..1d5322b5879 100644 --- a/components/esp_hw_support/sleep_modes.c +++ b/components/esp_hw_support/sleep_modes.c @@ -1277,11 +1277,11 @@ static esp_err_t FORCE_IRAM_ATTR deep_sleep_start(bool allow_sleep_rejection) } } #endif -#if CONFIG_IDF_TARGET_ESP32S2 +#if CONFIG_IDF_TARGET_ESP32S2 && CONFIG_ESP_BROWNOUT_DET /* Due to hardware limitations, on S2 the brownout detector sometimes trigger during deep sleep to circumvent this we disable the brownout detector before sleeping */ esp_brownout_disable(); -#endif //CONFIG_IDF_TARGET_ESP32S2 +#endif //CONFIG_IDF_TARGET_ESP32S2 && CONFIG_ESP_BROWNOUT_DET esp_sync_timekeeping_timers(); @@ -1412,6 +1412,12 @@ static esp_err_t FORCE_IRAM_ATTR deep_sleep_start(bool allow_sleep_rejection) #endif esp_sleep_exit_critical(); + +#if CONFIG_IDF_TARGET_ESP32S2 && CONFIG_ESP_BROWNOUT_DET + /* Brownout was disabled before attempting deep sleep; restore it after rejection. */ + esp_brownout_init(); +#endif //CONFIG_IDF_TARGET_ESP32S2 && CONFIG_ESP_BROWNOUT_DET + return err; }