diff --git a/components/esp_system/Kconfig b/components/esp_system/Kconfig
index 16171815e8..e82335d2d3 100644
--- a/components/esp_system/Kconfig
+++ b/components/esp_system/Kconfig
@@ -88,7 +88,9 @@ menu "ESP System Settings"
         default y
         help
             If enabled, chip will try to power down flash at light sleep, which costs more time when chip wakes up.
-            Only can be enabled if there is no SPIRAM configured.
+            Can only be enabled if there is no SPIRAM configured. This option will in fact consider VDD_SDIO auto power
+            value (ESP_PD_OPTION_AUTO) as OFF. Also, it is possible to force a power domain to stay ON during light
+            sleep by using esp_sleep_pd_config() function.
 
     config ESP_SYSTEM_PM_POWER_DOWN_CPU
         bool "Power down CPU in light sleep"
diff --git a/components/esp_system/sleep_modes.c b/components/esp_system/sleep_modes.c
index 97e41475e6..a1786682fe 100644
--- a/components/esp_system/sleep_modes.c
+++ b/components/esp_system/sleep_modes.c
@@ -719,7 +719,7 @@ esp_err_t esp_light_sleep_start(void)
      * If VDD_SDIO power domain is requested to be turned off, bit `RTC_SLEEP_PD_VDDSDIO`
      * will be set in `pd_flags`.
      */
-    if ((pd_flags & RTC_SLEEP_PD_VDDSDIO) != 0) {
+    if (pd_flags & RTC_SLEEP_PD_VDDSDIO) {
         /*
         * When VDD_SDIO power domain has to be turned off, the minimum sleep time of the
         * system needs to meet the sum below:
diff --git a/docs/en/api-reference/system/sleep_modes.rst b/docs/en/api-reference/system/sleep_modes.rst
index b6db0636ac..15bd3d6854 100644
--- a/docs/en/api-reference/system/sleep_modes.rst
+++ b/docs/en/api-reference/system/sleep_modes.rst
@@ -1,6 +1,8 @@
 Sleep Modes
 ===========
 
+{IDF_TARGET_SPI_POWER_DOMAIN:default="VDD_SPI", esp32="VDD_SDIO"}
+
 Overview
 --------
 
@@ -132,6 +134,15 @@ This wakeup mode doesn't require RTC peripherals or RTC memories to be powered o
 
     :cpp:func:`esp_sleep_enable_gpio_wakeup` function can be used to enable this wakeup source.
 
+    .. warning::
+        Before entering light sleep mode, check if any GPIO pin to be driven is part of the {IDF_TARGET_SPI_POWER_DOMAIN} power domain. If so, this power domain must be configured to remain ON during sleep.
+        
+        For example, on ESP32-WROOM-32 board, GPIO16 and GPIO17 are linked to {IDF_TARGET_SPI_POWER_DOMAIN} power domain. If they are configured to remain high during
+        light sleep, the power domain should be configured to remain powered ON. This can be done with :cpp:func:`esp_sleep_pd_config()`::
+
+            esp_sleep_pd_config(ESP_PD_DOMAIN_VDDSDIO, ESP_PD_OPTION_ON);
+
+
 UART wakeup (light sleep only)
 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^