diff --git a/drivers/media/platform/mtk-vcodec/mtk_vcodec_dec_pm.c b/drivers/media/platform/mtk-vcodec/mtk_vcodec_dec_pm.c
index 79ca03a..90e1641 100644
--- a/drivers/media/platform/mtk-vcodec/mtk_vcodec_dec_pm.c
+++ b/drivers/media/platform/mtk-vcodec/mtk_vcodec_dec_pm.c
@@ -16,7 +16,6 @@
 #include <linux/of_address.h>
 #include <linux/of_platform.h>
 #include <linux/pm_runtime.h>
-#include <soc/mediatek/smi.h>
 
 #include "mtk_vcodec_dec_pm.h"
 #include "mtk_vcodec_util.h"
@@ -24,7 +23,6 @@
 
 int mtk_vcodec_init_dec_pm(struct mtk_vcodec_dev *mtkdev)
 {
-	struct device_node *node;
 	struct platform_device *pdev;
 	struct mtk_vcodec_pm *pm;
 	int ret = 0;
@@ -32,18 +30,7 @@ int mtk_vcodec_init_dec_pm(struct mtk_vcodec_dev *mtkdev)
 	pdev = mtkdev->plat_dev;
 	pm = &mtkdev->pm;
 	pm->mtkdev = mtkdev;
-	node = of_parse_phandle(pdev->dev.of_node, "mediatek,larb", 0);
-	if (!node) {
-		mtk_v4l2_err("of_parse_phandle mediatek,larb fail!");
-		return -1;
-	}
 
-	pdev = of_find_device_by_node(node);
-	if (WARN_ON(!pdev)) {
-		of_node_put(node);
-		return -1;
-	}
-	pm->larbvdec = &pdev->dev;
 	pdev = mtkdev->plat_dev;
 	pm->dev = &pdev->dev;
 
@@ -181,16 +168,10 @@ void mtk_vcodec_dec_clock_on(struct mtk_vcodec_pm *pm)
 	ret = clk_set_parent(pm->vdec_sel, pm->vdecpll);
 	if (ret)
 		mtk_v4l2_err("clk_set_parent vdec_sel vdecpll fail %d", ret);
-
-	ret = mtk_smi_larb_get(pm->larbvdec);
-	if (ret)
-		mtk_v4l2_err("mtk_smi_larb_get larbvdec fail %d", ret);
-
 }
 
 void mtk_vcodec_dec_clock_off(struct mtk_vcodec_pm *pm)
 {
-	mtk_smi_larb_put(pm->larbvdec);
 	clk_disable_unprepare(pm->vdec_sel);
 	clk_disable_unprepare(pm->vdecpll);
 	clk_disable_unprepare(pm->univpll_d2);
diff --git a/drivers/media/platform/mtk-vcodec/mtk_vcodec_drv.h b/drivers/media/platform/mtk-vcodec/mtk_vcodec_drv.h
index 3cffb38..2696e14 100644
--- a/drivers/media/platform/mtk-vcodec/mtk_vcodec_drv.h
+++ b/drivers/media/platform/mtk-vcodec/mtk_vcodec_drv.h
@@ -191,9 +191,6 @@ struct mtk_vcodec_pm {
 	struct clk	*venc_sel;
 	struct clk	*univpll1_d2;
 	struct clk	*venc_lt_sel;
-	struct device	*larbvdec;
-	struct device	*larbvenc;
-	struct device	*larbvenclt;
 	struct device	*dev;
 	struct mtk_vcodec_dev	*mtkdev;
 };
diff --git a/drivers/media/platform/mtk-vcodec/mtk_vcodec_enc.c b/drivers/media/platform/mtk-vcodec/mtk_vcodec_enc.c
index 54631ad..7401619 100644
--- a/drivers/media/platform/mtk-vcodec/mtk_vcodec_enc.c
+++ b/drivers/media/platform/mtk-vcodec/mtk_vcodec_enc.c
@@ -16,7 +16,6 @@
 #include <media/v4l2-event.h>
 #include <media/v4l2-mem2mem.h>
 #include <media/videobuf2-dma-contig.h>
-#include <soc/mediatek/smi.h>
 
 #include "mtk_vcodec_drv.h"
 #include "mtk_vcodec_enc.h"
diff --git a/drivers/media/platform/mtk-vcodec/mtk_vcodec_enc_pm.c b/drivers/media/platform/mtk-vcodec/mtk_vcodec_enc_pm.c
index 3e73e9d..a3abd3d 100644
--- a/drivers/media/platform/mtk-vcodec/mtk_vcodec_enc_pm.c
+++ b/drivers/media/platform/mtk-vcodec/mtk_vcodec_enc_pm.c
@@ -16,7 +16,6 @@
 #include <linux/of_address.h>
 #include <linux/of_platform.h>
 #include <linux/pm_runtime.h>
-#include <soc/mediatek/smi.h>
 
 #include "mtk_vcodec_enc_pm.h"
 #include "mtk_vcodec_util.h"
@@ -25,7 +24,6 @@
 
 int mtk_vcodec_init_enc_pm(struct mtk_vcodec_dev *mtkdev)
 {
-	struct device_node *node;
 	struct platform_device *pdev;
 	struct device *dev;
 	struct mtk_vcodec_pm *pm;
@@ -38,31 +36,6 @@ int mtk_vcodec_init_enc_pm(struct mtk_vcodec_dev *mtkdev)
 	pm->dev = &pdev->dev;
 	dev = &pdev->dev;
 
-	node = of_parse_phandle(dev->of_node, "mediatek,larb", 0);
-	if (!node) {
-		mtk_v4l2_err("no mediatek,larb found");
-		return -1;
-	}
-	pdev = of_find_device_by_node(node);
-	if (!pdev) {
-		mtk_v4l2_err("no mediatek,larb device found");
-		return -1;
-	}
-	pm->larbvenc = &pdev->dev;
-
-	node = of_parse_phandle(dev->of_node, "mediatek,larb", 1);
-	if (!node) {
-		mtk_v4l2_err("no mediatek,larb found");
-		return -1;
-	}
-
-	pdev = of_find_device_by_node(node);
-	if (!pdev) {
-		mtk_v4l2_err("no mediatek,larb device found");
-		return -1;
-	}
-
-	pm->larbvenclt = &pdev->dev;
 	pdev = mtkdev->plat_dev;
 	pm->dev = &pdev->dev;
 
@@ -117,21 +90,10 @@ void mtk_vcodec_enc_clock_on(struct mtk_vcodec_pm *pm)
 	ret = clk_set_parent(pm->venc_lt_sel, pm->univpll1_d2);
 	if (ret)
 		mtk_v4l2_err("clk_set_parent fail %d", ret);
-
-	ret = mtk_smi_larb_get(pm->larbvenc);
-	if (ret)
-		mtk_v4l2_err("mtk_smi_larb_get larb3 fail %d", ret);
-
-	ret = mtk_smi_larb_get(pm->larbvenclt);
-	if (ret)
-		mtk_v4l2_err("mtk_smi_larb_get larb4 fail %d", ret);
-
 }
 
 void mtk_vcodec_enc_clock_off(struct mtk_vcodec_pm *pm)
 {
-	mtk_smi_larb_put(pm->larbvenc);
-	mtk_smi_larb_put(pm->larbvenclt);
 	clk_disable_unprepare(pm->venc_lt_sel);
 	clk_disable_unprepare(pm->venc_sel);
 }
