diff --git a/drivers/media/platform/mtk-vcodec/venc_vpu_if.c b/drivers/media/platform/mtk-vcodec/venc_vpu_if.c
index b92c6d2a892d..a01c7599b510 100644
--- a/drivers/media/platform/mtk-vcodec/venc_vpu_if.c
+++ b/drivers/media/platform/mtk-vcodec/venc_vpu_if.c
@@ -37,7 +37,8 @@ static void handle_enc_encode_msg(struct venc_vpu_inst *vpu, void *data)
 static void vpu_enc_ipi_handler(void *data, unsigned int len, void *priv)
 {
 	struct venc_vpu_ipi_msg_common *msg = data;
-	struct venc_vpu_inst *vpu = (struct venc_vpu_inst *)msg->venc_inst;
+	struct venc_vpu_inst *vpu =
+		(struct venc_vpu_inst *)(unsigned long)msg->venc_inst;
 
 	mtk_vcodec_debug(vpu, "msg_id %x inst %p status %d",
 			 msg->msg_id, vpu, msg->status);