feat(regi2c): add support for ESP32S31

components/hal/esp32s31/include/hal/modem_lpcon_ll.h

@@ -0,0 +1,27 @@
+/*
+ * SPDX-FileCopyrightText: 2026 Espressif Systems (Shanghai) CO LTD
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+// The LL layer for ESP32-S31 MODEM LPCON register operations
+
+#pragma once
+
+#include <stdlib.h>
+#include <stdbool.h>
+#include "soc/hp_sys_clkrst_struct.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+__attribute__((always_inline))
+static inline void modem_lpcon_ll_enable_bus_clock(bool enable)
+{
+    HP_SYS_CLKRST.modem_ctrl0.reg_modem_clk_en = enable;
+}
+
+#ifdef __cplusplus
+}
+#endif