From ca76683930a1c6acb8dd22867eca2bedaab998e3 Mon Sep 17 00:00:00 2001 From: Lars-Peter Clausen Date: Sat, 28 Mar 2015 18:05:44 +0100 Subject: [PATCH] dmaengine: jz4740: Define capabilities Setup the capabilities of the device/driver, so that users of the DMAengine API can query them. Signed-off-by: Lars-Peter Clausen Signed-off-by: Vinod Koul --- drivers/dma/dma-jz4740.c | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/drivers/dma/dma-jz4740.c b/drivers/dma/dma-jz4740.c index 4527a3e..8488441 100644 --- a/drivers/dma/dma-jz4740.c +++ b/drivers/dma/dma-jz4740.c @@ -511,6 +511,9 @@ static void jz4740_dma_desc_free(struct virt_dma_desc *vdesc) kfree(container_of(vdesc, struct jz4740_dma_desc, vdesc)); } +#define JZ4740_DMA_BUSWIDTHS (BIT(DMA_SLAVE_BUSWIDTH_1_BYTE) | \ + BIT(DMA_SLAVE_BUSWIDTH_2_BYTES) | BIT(DMA_SLAVE_BUSWIDTH_4_BYTES)) + static int jz4740_dma_probe(struct platform_device *pdev) { struct jz4740_dmaengine_chan *chan; @@ -548,6 +551,10 @@ static int jz4740_dma_probe(struct platform_device *pdev) dd->device_prep_dma_cyclic = jz4740_dma_prep_dma_cyclic; dd->device_config = jz4740_dma_slave_config; dd->device_terminate_all = jz4740_dma_terminate_all; + dd->src_addr_widths = JZ4740_DMA_BUSWIDTHS; + dd->dst_addr_widths = JZ4740_DMA_BUSWIDTHS; + dd->directions = BIT(DMA_DEV_TO_MEM) | BIT(DMA_MEM_TO_DEV); + dd->residue_granularity = DMA_RESIDUE_GRANULARITY_BURST; dd->dev = &pdev->dev; INIT_LIST_HEAD(&dd->channels); -- 2.7.4