fix(esp_hw_support): Fix deepsleep leakage after initializing USB HS phy

components/esp_hw_support/include/esp_private/sleep_usb.h

@@ -1,5 +1,5 @@
 /*
- * SPDX-FileCopyrightText: 2024 Espressif Systems (Shanghai) CO LTD
+ * SPDX-FileCopyrightText: 2024-2025 Espressif Systems (Shanghai) CO LTD
  *
  * SPDX-License-Identifier: Apache-2.0
  */
@@ -13,7 +13,8 @@
 extern "C" {
 #endif
 
-#if SOC_USB_OTG_SUPPORTED && SOC_PM_SUPPORT_CNNT_PD
+#if SOC_USB_OTG_SUPPORTED
+#if SOC_PM_SUPPORT_CNNT_PD
 /**
  * @brief Backup usb OTG phy bus_clock / stoppclk configuration and
  *         before light sleep to avoid current leakage
@@ -26,6 +27,16 @@ void sleep_usb_otg_phy_backup_and_disable(void);
 void sleep_usb_otg_phy_restore(void);
 #endif
 
+#if SOC_USB_UTMI_PHY_NO_POWER_OFF_ISO
+/**
+ * @brief The DP/DM part of the UTMI PHY circuit of esp32p4 that converts logic level to digital
+ *        has no power off isolation, which will cause leakage when entering deepsleep.
+ *        This problem can be workarounded by enabling USB-OTG's HNP (Host negotiation protocol)
+ *        to enable DM pull-down to suppress leakage.
+ */
+void sleep_usb_suppress_deepsleep_leakage(void);
+#endif
+#endif
 #ifdef __cplusplus
 }
 #endif