dmaengine: zx: set DMA_CYCLIC cap_mask bit

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 <[email protected]> Reviewed-by: Jun Nie <[email protected]> Signed-off-by: Vinod Koul <[email protected]>
agners · Jan 2, 2017 · fc318d6 · fc318d6
1 parent 253f9f4
commit fc318d6
Showing 1 changed file with 1 addition and 0 deletions.
diff --git a/drivers/dma/zx_dma.c b/drivers/dma/zx_dma.c
@@ -812,6 +812,7 @@ static int zx_dma_probe(struct platform_device *op)
 	INIT_LIST_HEAD(&d->slave.channels);
 	dma_cap_set(DMA_SLAVE, 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);
 	d->slave.dev = &op->dev;
 	d->slave.device_free_chan_resources = zx_dma_free_chan_resources;