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dmaengine: zx: set DMA_CYCLIC cap_mask bit

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The zx_dma driver supports cyclic transfer mode.  Let's set DMA_CYCLIC
cap_mask bit to make that clear, and avoid unnecessary failure when
clients request channel via dma_request_chan_by_mask() with DMA_CYCLIC
bit set in mask.

Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
Reviewed-by: Jun Nie <jun.nie@linaro.org>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
This commit is contained in:
Shawn Guo 2016-12-15 22:03:36 +08:00 committed by Vinod Koul
parent 253f9f4412
commit fc318d64f3
1 changed files with 1 additions and 0 deletions
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drivers/dma/zx_dma.c
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@ -812,6 +812,7 @@ static int zx_dma_probe(struct platform_device *op)
INIT_LIST_HEAD(&d->slave.channels); INIT_LIST_HEAD(&d->slave.channels);
dma_cap_set(DMA_SLAVE, d->slave.cap_mask); dma_cap_set(DMA_SLAVE, d->slave.cap_mask);
dma_cap_set(DMA_MEMCPY, d->slave.cap_mask); dma_cap_set(DMA_MEMCPY, d->slave.cap_mask);
dma_cap_set(DMA_CYCLIC, d->slave.cap_mask);
dma_cap_set(DMA_PRIVATE, d->slave.cap_mask); dma_cap_set(DMA_PRIVATE, d->slave.cap_mask);
d->slave.dev = &op->dev; d->slave.dev = &op->dev;
d->slave.device_free_chan_resources = zx_dma_free_chan_resources; d->slave.device_free_chan_resources = zx_dma_free_chan_resources;