From 1099dc79245719c046e632212ec09d6ec1154ef5 Mon Sep 17 00:00:00 2001 From: Haavard Skinnemoen Date: Tue, 8 Jul 2008 11:58:05 -0700 Subject: [PATCH] dmaengine: Couple DMA channels to their physical DMA device 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 Signed-off-by: Dan Williams --- drivers/dma/dmaengine.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/dma/dmaengine.c b/drivers/dma/dmaengine.c index 97b329e76798..99c22b42bada 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);