return NULL;
 }
 
-static dma_addr_t
-d40_get_dev_addr(struct d40_chan *chan, enum dma_transfer_direction direction)
-{
-       struct stedma40_platform_data *plat = chan->base->plat_data;
-       struct stedma40_chan_cfg *cfg = &chan->dma_cfg;
-       dma_addr_t addr = 0;
-
-       if (chan->runtime_addr)
-               return chan->runtime_addr;
-
-       if (direction == DMA_DEV_TO_MEM)
-               addr = plat->dev_rx[cfg->dev_type];
-       else if (direction == DMA_MEM_TO_DEV)
-               addr = plat->dev_tx[cfg->dev_type];
-
-       return addr;
-}
-
 static struct dma_async_tx_descriptor *
 d40_prep_sg(struct dma_chan *dchan, struct scatterlist *sg_src,
            struct scatterlist *sg_dst, unsigned int sg_len,