diff --git a/components/bt/porting_btdm/transport/include/esp_hci_driver.h b/components/bt/porting_btdm/transport/include/esp_hci_driver.h
index 7f8586e8efb..ff7a6e9e9fa 100644
--- a/components/bt/porting_btdm/transport/include/esp_hci_driver.h
+++ b/components/bt/porting_btdm/transport/include/esp_hci_driver.h
@@ -106,10 +106,39 @@ extern hci_driver_ops_t hci_driver_vhci_ops;
 #endif // UC_BT_CTRL_HCI_INTERFACE_USE_RAM
 
 #if UC_BT_CTRL_HCI_INTERFACE_USE_UART
-extern hci_driver_ops_t hci_driver_uart_ops;
 #if UC_BT_CTRL_UART_HCI_DMA_MODE
 extern hci_driver_ops_t hci_driver_uart_dma_ops;
-#endif // UC_BT_CTRL_UART_HCI_DMA_MODE
+/**
+ * @brief Reconfigure the UART pins for the HCI driver.
+ *
+ * This function changes the UART pin configuration for the HCI driver.
+ *
+ * @param tx_pin   The pin number for the UART TX (transmit) line.
+ * @param rx_pin   The pin number for the UART RX (receive) line.
+ * @param cts_pin  The pin number for the UART CTS (clear to send) line.
+ * @param rts_pin  The pin number for the UART RTS (request to send) line.
+ *
+ * @return int     Returns 0 on success, or a negative error code on failure.
+ */
+int hci_driver_uart_dma_reconfig_pin(int tx_pin, int rx_pin, int cts_pin, int rts_pin);
+#define hci_uart_reconfig_pin               hci_driver_uart_dma_reconfig_pin
+#else
+extern hci_driver_ops_t hci_driver_uart_ops;
+/**
+ * @brief Reconfigure the UART pins for the HCI driver.
+ *
+ * This function changes the UART pin configuration for the HCI driver.
+ *
+ * @param tx_pin   The pin number for the UART TX (transmit) line.
+ * @param rx_pin   The pin number for the UART RX (receive) line.
+ * @param cts_pin  The pin number for the UART CTS (clear to send) line.
+ * @param rts_pin  The pin number for the UART RTS (request to send) line.
+ *
+ * @return int     Returns 0 on success, or a negative error code on failure.
+ */
+int hci_driver_uart_reconfig_pin(int tx_pin, int rx_pin, int cts_pin, int rts_pin);
+#define hci_uart_reconfig_pin               hci_driver_uart_reconfig_pin
+#endif // CONFIG_BT_LE_UART_HCI_DMA_MODE
 #endif // UC_BT_CTRL_HCI_INTERFACE_USE_UART
 
 #endif // H_ESP_HCI_DRIVER_
diff --git a/examples/bluetooth/nimble/power_save/main/main.c b/examples/bluetooth/nimble/power_save/main/main.c
index 331db9171e8..1f85cb4bf83 100644
--- a/examples/bluetooth/nimble/power_save/main/main.c
+++ b/examples/bluetooth/nimble/power_save/main/main.c
@@ -16,6 +16,7 @@
 #include "console/console.h"
 #include "services/gap/ble_svc_gap.h"
 #include "bleprph.h"
+#include "soc/rtc.h"
 
 #if CONFIG_EXAMPLE_EXTENDED_ADV
 static uint8_t ext_adv_pattern_1[] = {
@@ -574,7 +575,7 @@ app_main(void)
     // automatic light sleep is enabled if tickless idle support is enabled.
     esp_pm_config_t pm_config = {
             .max_freq_mhz = CONFIG_ESP_DEFAULT_CPU_FREQ_MHZ,
-            .min_freq_mhz = CONFIG_XTAL_FREQ,
+            .min_freq_mhz = rtc_clk_xtal_freq_get(),
 #if CONFIG_FREERTOS_USE_TICKLESS_IDLE
             .light_sleep_enable = true
 #endif