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Date: Wed, 25 Jun 2008 14:08:43 +0200 From: Haavard Skinnemoen <haavard.skinnemoen@...el.com> To: Dan Williams <dan.j.williams@...el.com> Cc: Greg KH <greg@...ah.com>, linux-kernel@...r.kernel.org, Haavard Skinnemoen <hskinnemoen@...el.com> Subject: [PATCH] dmaengine: Couple DMA channels to their physical DMA device From: Haavard Skinnemoen <hskinnemoen@...el.com> 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@...el.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 97b329e..99c22b4 100644 --- a/drivers/dma/dmaengine.c +++ b/drivers/dma/dmaengine.c @@ -378,7 +378,7 @@ 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); -- 1.5.5.4 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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