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fix(mcpwm): the wrong pm lock type on esp32 and esp32s3

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morris
2025-04-08 17:35:04 +08:00
parent f0b6cc433c
commit 761952a4c0
1 changed files with 8 additions and 2 deletions
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10
components/driver/mcpwm/mcpwm_com.c
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@ -169,9 +169,15 @@ esp_err_t mcpwm_select_periph_clock(mcpwm_group_t *group, soc_module_clk_t clk_s
#if CONFIG_PM_ENABLE
sprintf(group->pm_lock_name, "mcpwm_%d", group->group_id); // e.g. mcpwm_0
ret = esp_pm_lock_create(ESP_PM_NO_LIGHT_SLEEP, 0, group->pm_lock_name, &group->pm_lock);
// to make the mcpwm works reliable, the source clock must stay alive and unchanged
esp_pm_lock_type_t pm_lock_type = ESP_PM_NO_LIGHT_SLEEP;
#if CONFIG_IDF_TARGET_ESP32 || CONFIG_IDF_TARGET_ESP32S3
// on ESP32 and ESP32S3, MCPWM's clock source (PLL_160M) frequency is automatically reduced during DFS, resulting in an inaccurate time base
// thus we want to use the APB_MAX lock
pm_lock_type = ESP_PM_APB_FREQ_MAX;
#endif
ret = esp_pm_lock_create(pm_lock_type, 0, group->pm_lock_name, &group->pm_lock);
ESP_RETURN_ON_ERROR(ret, TAG, "create pm lock failed");
ESP_LOGD(TAG, "install NO_LIGHT_SLEEP lock for MCPWM group(%d)", group->group_id);
#endif // CONFIG_PM_ENABLE
MCPWM_CLOCK_SRC_ATOMIC() {