X-Git-Url: http://demsky.eecs.uci.edu/git/?a=blobdiff_plain;f=drivers%2Fdma%2Fsa11x0-dma.c;h=43db255050d238ff365c40280ec0f54c5605f32c;hb=968ccb6e8330739448c9fb40a6ed08013b17cbc7;hp=5adf5407a8cb83a70faec26c6182538df958bcb5;hpb=237dae889051ed4ebf438b08ca6c0e7c54b97774;p=firefly-linux-kernel-4.4.55.git

diff --git a/drivers/dma/sa11x0-dma.c b/drivers/dma/sa11x0-dma.c
index 5adf5407a8cb..43db255050d2 100644
--- a/drivers/dma/sa11x0-dma.c
+++ b/drivers/dma/sa11x0-dma.c
@@ -389,11 +389,6 @@ static void sa11x0_dma_tasklet(unsigned long arg)
 }
 
 
-static int sa11x0_dma_alloc_chan_resources(struct dma_chan *chan)
-{
-	return 0;
-}
-
 static void sa11x0_dma_free_chan_resources(struct dma_chan *chan)
 {
 	struct sa11x0_dma_chan *c = to_sa11x0_dma_chan(chan);
@@ -835,7 +830,6 @@ static int sa11x0_dma_init_dmadev(struct dma_device *dmadev,
 
 	INIT_LIST_HEAD(&dmadev->channels);
 	dmadev->dev = dev;
-	dmadev->device_alloc_chan_resources = sa11x0_dma_alloc_chan_resources;
 	dmadev->device_free_chan_resources = sa11x0_dma_free_chan_resources;
 	dmadev->device_config = sa11x0_dma_device_config;
 	dmadev->device_pause = sa11x0_dma_device_pause;
@@ -948,6 +942,12 @@ static int sa11x0_dma_probe(struct platform_device *pdev)
 	dma_cap_set(DMA_CYCLIC, d->slave.cap_mask);
 	d->slave.device_prep_slave_sg = sa11x0_dma_prep_slave_sg;
 	d->slave.device_prep_dma_cyclic = sa11x0_dma_prep_dma_cyclic;
+	d->slave.directions = BIT(DMA_DEV_TO_MEM) | BIT(DMA_MEM_TO_DEV);
+	d->slave.residue_granularity = DMA_RESIDUE_GRANULARITY_BURST;
+	d->slave.src_addr_widths = BIT(DMA_SLAVE_BUSWIDTH_1_BYTE) |
+				   BIT(DMA_SLAVE_BUSWIDTH_2_BYTES);
+	d->slave.dst_addr_widths = BIT(DMA_SLAVE_BUSWIDTH_1_BYTE) |
+				   BIT(DMA_SLAVE_BUSWIDTH_2_BYTES);
 	ret = sa11x0_dma_init_dmadev(&d->slave, &pdev->dev);
 	if (ret) {
 		dev_warn(d->slave.dev, "failed to register slave async device: %d\n",