[03/18] dmaengine: doc: client: Update for dmaengine_get_dma_device() usage

Message ID 20200930091412.8020-4-peter.ujfalusi@ti.com
State Superseded
Headers show
Series
  • dmaengine/soc: k3-udma: Add support for BCDMA and PKTDMA
Related show

Commit Message

Peter Ujfalusi Sept. 30, 2020, 9:13 a.m.
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>

---
 Documentation/driver-api/dmaengine/client.rst | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

-- 
Peter

Texas Instruments Finland Oy, Porkkalankatu 22, 00180 Helsinki.
Y-tunnus/Business ID: 0615521-4. Kotipaikka/Domicile: Helsinki

Patch

diff --git a/Documentation/driver-api/dmaengine/client.rst b/Documentation/driver-api/dmaengine/client.rst
index 09a3f66dcd26..bfd057b21a00 100644
--- a/Documentation/driver-api/dmaengine/client.rst
+++ b/Documentation/driver-api/dmaengine/client.rst
@@ -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 */