diff --git a/drivers/memory/mtk-smi.c b/drivers/memory/mtk-smi.c
index e201e5976f34..40408a88f464 100644
--- a/drivers/memory/mtk-smi.c
+++ b/drivers/memory/mtk-smi.c
@@ -149,20 +149,6 @@ struct mtk_smi_larb { /* larb: local arbiter */
 	unsigned char			*bank;
 };
 
-int mtk_smi_larb_get(struct device *larbdev)
-{
-	int ret = pm_runtime_resume_and_get(larbdev);
-
-	return (ret < 0) ? ret : 0;
-}
-EXPORT_SYMBOL_GPL(mtk_smi_larb_get);
-
-void mtk_smi_larb_put(struct device *larbdev)
-{
-	pm_runtime_put_sync(larbdev);
-}
-EXPORT_SYMBOL_GPL(mtk_smi_larb_put);
-
 static int
 mtk_smi_larb_bind(struct device *dev, struct device *master, void *data)
 {
diff --git a/include/soc/mediatek/smi.h b/include/soc/mediatek/smi.h
index 15e3397cec58..11f7d6b59642 100644
--- a/include/soc/mediatek/smi.h
+++ b/include/soc/mediatek/smi.h
@@ -19,26 +19,6 @@ struct mtk_smi_larb_iommu {
 	unsigned char  bank[32];
 };
 
-/*
- * mtk_smi_larb_get: Enable the power domain and clocks for this local arbiter.
- *                   It also initialize some basic setting(like iommu).
- * mtk_smi_larb_put: Disable the power domain and clocks for this local arbiter.
- * Both should be called in non-atomic context.
- *
- * Returns 0 if successful, negative on failure.
- */
-int mtk_smi_larb_get(struct device *larbdev);
-void mtk_smi_larb_put(struct device *larbdev);
-
-#else
-
-static inline int mtk_smi_larb_get(struct device *larbdev)
-{
-	return 0;
-}
-
-static inline void mtk_smi_larb_put(struct device *larbdev) { }
-
 #endif
 
 #endif