diff --git a/drivers/base/dma-contiguous.c b/drivers/base/dma-contiguous.c
index 45c9023..885721f 100644
--- a/drivers/base/dma-contiguous.c
+++ b/drivers/base/dma-contiguous.c
@@ -447,6 +447,13 @@
 }
 core_initcall(cma_init_reserved_areas);
 
+phys_addr_t cma_get_base(struct device *dev)
+{
+	struct cma *cma = dev_get_cma_area(dev);
+
+	return cma->base_pfn << PAGE_SHIFT;
+}
+
 /**
  * dma_alloc_from_contiguous() - allocate pages from contiguous area
  * @dev:   Pointer to device for which the allocation is performed.