dmaengine: ste_dma40: Remove redundant address fetching function

Addresses are now stored in local data structures and are easy to
obtain, thus a specialist function used to fetch them is now surplus
to requirement.
Signed-off-by: NLee Jones <lee.jones@linaro.org>
Acked-by: NVinod Koul <vinod.koul@intel.com>
Signed-off-by: NLinus Walleij <linus.walleij@linaro.org>

drivers/dma/ste_dma40.c

@@ -2267,24 +2267,6 @@ d40_prep_desc(struct d40_chan *chan, struct scatterlist *sg,
 	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,