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From: Peter Ujfalusi <peter.ujfalusi@ti.com>
To: <vkoul@kernel.org>, <nm@ti.com>, <ssantosh@kernel.org>,
	<robh+dt@kernel.org>, <vigneshr@ti.com>
Cc: <dan.j.williams@intel.com>, <t-kristo@ti.com>,
	<lokeshvutla@ti.com>, <linux-arm-kernel@lists.infradead.org>,
	<linux-kernel@vger.kernel.org>, <devicetree@vger.kernel.org>,
	<dmaengine@vger.kernel.org>
Subject: [PATCH 03/18] dmaengine: doc: client: Update for dmaengine_get_dma_device() usage
Date: Wed, 30 Sep 2020 12:13:57 +0300	[thread overview]
Message-ID: <20200930091412.8020-4-peter.ujfalusi@ti.com> (raw)
In-Reply-To: <20200930091412.8020-1-peter.ujfalusi@ti.com>

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(-)

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 */
 
-- 
Peter

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


  parent reply	other threads:[~2020-09-30  9:14 UTC|newest]

Thread overview: 40+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-09-30  9:13 [PATCH 00/18] dmaengine/soc: k3-udma: Add support for BCDMA and PKTDMA Peter Ujfalusi
2020-09-30  9:13 ` [PATCH 01/18] dmaengine: of-dma: Add support for optional router configuration callback Peter Ujfalusi
2020-10-07  5:44   ` Vinod Koul
2020-10-07  8:08     ` Peter Ujfalusi
2020-10-07 15:55       ` Vinod Koul
2020-10-08  6:41         ` Peter Ujfalusi
2020-10-28  5:55           ` Vinod Koul
2020-10-28  9:56             ` Peter Ujfalusi
2020-11-09 11:45               ` Vinod Koul
2020-11-09 12:09                 ` Peter Ujfalusi
2020-11-09 12:23                   ` Vinod Koul
2020-11-09 12:36                     ` Peter Ujfalusi
2020-09-30  9:13 ` [PATCH 02/18] dmaengine: Add support for per channel coherency handling Peter Ujfalusi
2020-09-30  9:13 ` Peter Ujfalusi [this message]
2020-09-30  9:13 ` [PATCH 04/18] dmaengine: dmatest: Use dmaengine_get_dma_device Peter Ujfalusi
2020-09-30  9:13 ` [PATCH 05/18] dmaengine: ti: k3-udma: Wait for peer teardown completion if supported Peter Ujfalusi
2020-09-30  9:14 ` [PATCH 06/18] dmaengine: ti: k3-udma: Add support for second resource range from sysfw Peter Ujfalusi
2020-09-30  9:14 ` [PATCH 07/18] dmaengine: ti: k3-udma-glue: Add function to get device pointer for DMA API Peter Ujfalusi
2020-10-07  6:53   ` Vinod Koul
2020-10-07  8:22     ` Peter Ujfalusi
2020-09-30  9:14 ` [PATCH 08/18] dmaengine: ti: k3-udma-glue: Configure the dma_dev for rings Peter Ujfalusi
2020-09-30  9:14 ` [PATCH 09/18] dt-bindings: dma: ti: Add document for K3 BCDMA Peter Ujfalusi
2020-10-01  6:49   ` Peter Ujfalusi
2020-10-06 19:23     ` Rob Herring
2020-10-06 19:29   ` Rob Herring
2020-10-07  9:09     ` Peter Ujfalusi
2020-10-07 15:46       ` Rob Herring
2020-10-08  8:40         ` Peter Ujfalusi
2020-10-08 19:15           ` Rob Herring
2020-10-09  8:06             ` Peter Ujfalusi
2020-09-30  9:14 ` [PATCH 10/18] dt-bindings: dma: ti: Add document for K3 PKTDMA Peter Ujfalusi
2020-09-30  9:14 ` [PATCH 11/18] dmaengine: ti: k3-psil: Extend psil_endpoint_config " Peter Ujfalusi
2020-09-30  9:14 ` [PATCH 12/18] dmaengine: ti: k3-psil: Add initial map for AM64 Peter Ujfalusi
2020-09-30  9:14 ` [PATCH 13/18] dmaengine: ti: Add support for k3 event routers Peter Ujfalusi
2020-09-30  9:14 ` [PATCH 14/18] soc: ti: k3-ringacc: add AM64 DMA rings support Peter Ujfalusi
2020-09-30  9:14 ` [PATCH 15/18] dmaengine: ti: k3-udma: Initial support for K3 BCDMA Peter Ujfalusi
2020-09-30  9:14 ` [PATCH 16/18] dmaengine: ti: k3-udma: Add support for BCDMA channel TPL handling Peter Ujfalusi
2020-09-30  9:14 ` [PATCH 17/18] dmaengine: ti: k3-udma: Initial support for K3 PKTDMA Peter Ujfalusi
2020-09-30  9:14 ` [PATCH 18/18] dmaengine: ti: k3-udma-glue: Add " Peter Ujfalusi
2020-09-30 10:17 ` [PATCH 00/18] dmaengine/soc: k3-udma: Add support for BCDMA and PKTDMA Peter Ujfalusi

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