diff --git a/drivers/dma/mmp_tdma.c b/drivers/dma/mmp_tdma.c
index 38cb517..d3b6358 100644
--- a/drivers/dma/mmp_tdma.c
+++ b/drivers/dma/mmp_tdma.c
@@ -350,12 +350,7 @@
 	if (!gpool)
 		return NULL;
 
-	tdmac->desc_arr = (void *)gen_pool_alloc(gpool, size);
-	if (!tdmac->desc_arr)
-		return NULL;
-
-	tdmac->desc_arr_phys = gen_pool_virt_to_phys(gpool,
-			(unsigned long)tdmac->desc_arr);
+	tdmac->desc_arr = gen_pool_dma_alloc(gpool, size, &tdmac->desc_arr_phys);
 
 	return tdmac->desc_arr;
 }