UbiquitousOS
/
OpenCloudOS-Kernel
mirror of https://gitee.com/OpenCloudOS/OpenCloudOS-Kernel.git
11
0
Fork 0
Code Issues Projects Releases Wiki Activity

dmaengine: at_hdmac: fix way to specify cyclic capability 

In this driver, we can trigger cyclic transfer on peripherals-DMA interfaces.
It is dependent on driver implementation but cannot depend on a platform
property: we remove the dma_has_cap(DMA_CYCLIC, ) test which has no meaning.

Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
This commit is contained in:
Nicolas Ferre 2011-08-05 11:43:44 +00:00 committed by Vinod Koul
parent 3c477482bb
commit d7db80801f
1 changed files with 4 additions and 6 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

10
drivers/dma/at_hdmac.c
View File

@ -1301,15 +1301,13 @@ static int __init at_dma_probe(struct platform_device *pdev)
if (dma_has_cap(DMA_MEMCPY, atdma->dma_common.cap_mask)) if (dma_has_cap(DMA_MEMCPY, atdma->dma_common.cap_mask))
atdma->dma_common.device_prep_dma_memcpy = atc_prep_dma_memcpy; atdma->dma_common.device_prep_dma_memcpy = atc_prep_dma_memcpy;
if (dma_has_cap(DMA_SLAVE, atdma->dma_common.cap_mask)) if (dma_has_cap(DMA_SLAVE, atdma->dma_common.cap_mask)) {
atdma->dma_common.device_prep_slave_sg = atc_prep_slave_sg; atdma->dma_common.device_prep_slave_sg = atc_prep_slave_sg;
/* controller can do slave DMA: can trigger cyclic transfers */
if (dma_has_cap(DMA_CYCLIC, atdma->dma_common.cap_mask)) dma_cap_set(DMA_CYCLIC, atdma->dma_common.cap_mask);
atdma->dma_common.device_prep_dma_cyclic = atc_prep_dma_cyclic; atdma->dma_common.device_prep_dma_cyclic = atc_prep_dma_cyclic;
if (dma_has_cap(DMA_SLAVE, atdma->dma_common.cap_mask) ||
dma_has_cap(DMA_CYCLIC, atdma->dma_common.cap_mask))
atdma->dma_common.device_control = atc_control; atdma->dma_common.device_control = atc_control;
}
dma_writel(atdma, EN, AT_DMA_ENABLE); dma_writel(atdma, EN, AT_DMA_ENABLE);