diff options
| author | Lars-Peter Clausen <lars@metafoo.de> | 2015-03-28 18:05:44 +0100 |
|---|---|---|
| committer | Vinod Koul <vinod.koul@intel.com> | 2015-03-30 19:30:23 +0200 |
| commit | ca76683930a1c6acb8dd22867eca2bedaab998e3 (patch) | |
| tree | 704cc0b013748cfb710fbad5c79ada13d1e26116 /drivers/dma/dma-jz4740.c | |
| parent | Linux 4.0-rc5 (diff) | |
| download | linux-ca76683930a1c6acb8dd22867eca2bedaab998e3.tar.xz linux-ca76683930a1c6acb8dd22867eca2bedaab998e3.zip | |
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 <lars@metafoo.de>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
Diffstat (limited to 'drivers/dma/dma-jz4740.c')
| -rw-r--r-- | drivers/dma/dma-jz4740.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/drivers/dma/dma-jz4740.c b/drivers/dma/dma-jz4740.c index 4527a3ebeac4..84884418fd30 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); |