From 8c77a3075a6ea0cafb4cead5271dcbc5c639158e Mon Sep 17 00:00:00 2001
From: wuzhenghui <wuzhenghui@espressif.com>
Date: Wed, 12 Nov 2025 17:02:52 +0800
Subject: [PATCH] fix(esp_hw_support): add dependency of the TOP domain to the
 RTC_PERIPH domain for esp32c6

---
 components/esp_hw_support/sleep_modes.c | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/components/esp_hw_support/sleep_modes.c b/components/esp_hw_support/sleep_modes.c
index 52d282043c..1a966d9422 100644
--- a/components/esp_hw_support/sleep_modes.c
+++ b/components/esp_hw_support/sleep_modes.c
@@ -2748,6 +2748,13 @@ static SLEEP_FN_ATTR uint32_t get_power_down_flags(void)
         }
     }
 #endif
+
+#if CONFIG_IDF_TARGET_ESP32C6
+    if (!(pd_flags & PMU_SLEEP_PD_TOP)) {
+        // TOP power domain depends on the RTC_PERIPH power domain on ESP32C6, RTC_PERIPH should only be disabled when the TOP domain is down.
+        pd_flags &= ~RTC_SLEEP_PD_RTC_PERIPH;
+    }
+#endif
     return pd_flags;
 }