[PATCH 2/3] dma: zx: set DMA_CYCLIC cap_mask bit
flat view
STALE3577d
From: shawnguo@kernel.org (Shawn Guo)
Date: 2016-12-15 14:03:36
Subsystem:
dma generic offload engine subsystem, the rest · Maintainers:
Vinod Koul, Linus Torvalds
From: Shawn Guo <redacted> 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 <redacted> --- drivers/dma/zx_dma.c | 1 + 1 file changed, 1 insertion(+)
diff --git a/drivers/dma/zx_dma.c b/drivers/dma/zx_dma.c
index 380276d078b2..33155c6816cc 100644
--- 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;
--
1.9.1