Messages in this thread Patch in this message | | | From | Haavard Skinnemoen <> | Subject | [RFC v3 1/7] dmaengine: Couple DMA channels to their physical DMA device | Date | Tue, 12 Feb 2008 17:43:52 +0100 |
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Set the 'parent' field of channel class devices to point to the physical DMA device initialized by the DMA engine driver.
This allows drivers to use chan->dev.parent for syncing DMA buffers and adds a 'device' symlink to the real device in /sys/class/dma/dmaXchanY.
Signed-off-by: Haavard Skinnemoen <hskinnemoen@atmel.com> --- drivers/dma/dmaengine.c | 2 +- 1 files changed, 1 insertions(+), 1 deletions(-)
diff --git a/drivers/dma/dmaengine.c b/drivers/dma/dmaengine.c index 2996523..7c7cb4b 100644 --- a/drivers/dma/dmaengine.c +++ b/drivers/dma/dmaengine.c @@ -379,7 +379,7 @@ int dma_async_device_register(struct dma_device *device) chan->chan_id = chancnt++; chan->dev.class = &dma_devclass; - chan->dev.parent = NULL; + chan->dev.parent = device->dev; snprintf(chan->dev.bus_id, BUS_ID_SIZE, "dma%dchan%d", device->dev_id, chan->chan_id); -- 1.5.3.8
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