Commit f082c6df authored Dec 08, 2020 by Peter Ujfalusi Committed by Vinod Koul Dec 11, 2020

dmaengine: doc: client: Update for dmaengine_get_dma_device() usage



Client drivers should use the dmaengine_get_dma_device(chan) to get the
device pointer which should be used for DMA API for allocations and
mapping.

Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Link: https://lore.kernel.org/r/20201208090440.31792-10-peter.ujfalusi@ti.com


Signed-off-by: Vinod Koul <vkoul@kernel.org>

parent ab650ef6

Documentation/driver-api/dmaengine/client.rst

+3 −1

Original line number	Diff line number	Diff line
		@@ -120,7 +120,9 @@ The details of these operations are:

		.. code-block:: c

		nr_sg = dma_map_sg(chan->device->dev, sgl, sg_len);
		struct device *dma_dev = dmaengine_get_dma_device(chan);

		nr_sg = dma_map_sg(dma_dev, sgl, sg_len);
		if (nr_sg == 0)
		/* error */

Admin message