diff --git a/drivers/staging/rtl8188eu/hal/HalPhyRf_8188e.c b/drivers/staging/rtl8188eu/hal/HalPhyRf_8188e.c
index bb80b8a94b6ae4f9c4950992ba27669b5ac9cbff..6af70ce93ac8e53d2591240803ef90b67b4d1071 100644
--- a/drivers/staging/rtl8188eu/hal/HalPhyRf_8188e.c
+++ b/drivers/staging/rtl8188eu/hal/HalPhyRf_8188e.c
@@ -870,7 +870,7 @@ _PHY_ReloadMACRegisters(
 	for (i = 0; i < (IQK_MAC_REG_NUM - 1); i++) {
 		rtw_write8(adapt, MACReg[i], (u8)MACBackup[i]);
 	}
-	ODM_Write4Byte(dm_odm, MACReg[i], MACBackup[i]);
+	rtw_write32(adapt, MACReg[i], MACBackup[i]);
 }
 
 void
diff --git a/drivers/staging/rtl8188eu/hal/odm_interface.c b/drivers/staging/rtl8188eu/hal/odm_interface.c
index 202790cda71c59a602167942ee471b84c1f9856a..b84b111950e4b61d42a82846f136ba90a72cf860 100644
--- a/drivers/staging/rtl8188eu/hal/odm_interface.c
+++ b/drivers/staging/rtl8188eu/hal/odm_interface.c
@@ -19,13 +19,6 @@
  ******************************************************************************/
 
 #include "odm_precomp.h"
-/*  ODM IO Relative API. */
-
-void ODM_Write4Byte(struct odm_dm_struct *pDM_Odm, u32 RegAddr, u32 Data)
-{
-	struct adapter *Adapter = pDM_Odm->Adapter;
-	rtw_write32(Adapter, RegAddr, Data);
-}
 
 /*  ODM Memory relative API. */
 void ODM_AllocateMemory(struct odm_dm_struct *pDM_Odm, void **pPtr, u32 length)
diff --git a/drivers/staging/rtl8188eu/include/odm_interface.h b/drivers/staging/rtl8188eu/include/odm_interface.h
index f45f172d2309e5b8705f45ab866478782670813a..9284eb8377083e9a4482c1b612c0f456d1c27e4f 100644
--- a/drivers/staging/rtl8188eu/include/odm_interface.h
+++ b/drivers/staging/rtl8188eu/include/odm_interface.h
@@ -77,8 +77,6 @@ typedef void (*RT_WORKITEM_CALL_BACK)(void *pContext);
 
 /*  =========== EXtern Function Prototype */
 
-void ODM_Write4Byte(struct odm_dm_struct *pDM_Odm, u32 RegAddr, u32 Data);
-
 /*  Memory Relative Function. */
 void ODM_AllocateMemory(struct odm_dm_struct *pDM_Odm, void **pPtr, u32 length);
 void ODM_FreeMemory(struct odm_dm_struct *pDM_Odm, void *pPtr, u32 length);