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Merge branch 'feature/rmt_no_light_sleep_lock' into 'master'

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rmt: avoid auto light sleep when use xtal as the clock source

See merge request espressif/esp-idf!21831
This commit is contained in:
morris 2023-01-14 00:08:55 +08:00
commit bcc307cf7b
1 changed files with 8 additions and 0 deletions
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8
components/driver/rmt/rmt_common.c
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@ -156,6 +156,14 @@ esp_err_t rmt_select_periph_clock(rmt_channel_handle_t chan, rmt_clock_source_t
#if SOC_RMT_SUPPORT_XTAL
case RMT_CLK_SRC_XTAL:
periph_src_clk_hz = esp_clk_xtal_freq();
#if CONFIG_PM_ENABLE
sprintf(chan->pm_lock_name, "rmt_%d_%d", group->group_id, channel_id); // e.g. rmt_0_0
// XTAL will be power down in the light sleep (predefined low power modes)
// acquire a NO_LIGHT_SLEEP lock here to prevent the system go into light sleep automatically
ret = esp_pm_lock_create(ESP_PM_NO_LIGHT_SLEEP, 0, chan->pm_lock_name, &chan->pm_lock);
ESP_RETURN_ON_ERROR(ret, TAG, "create NO_LIGHT_SLEEP lock failed");
ESP_LOGD(TAG, "install NO_LIGHT_SLEEP lock for RMT channel (%d,%d)", group->group_id, channel_id);
#endif // CONFIG_PM_ENABLE
break;
#endif // SOC_RMT_SUPPORT_XTAL
#if SOC_RMT_SUPPORT_REF_TICK