linux.git/drivers/dma/xilinx, branch for-next

dmaengine: fix typo in the comment

2024-10-21T17:37:08+00:00

Correctly spelled comments make it easier for the reader to understand
the code.

Replace 'enngine' with 'engine' in the comment &
replace 'trascatioin' with 'transaction' in the comment &
replace 'descripter' with 'descriptor' in the comment &
replace 'descritpor' with 'descriptor' in the comment &
replace 'rgisters' with 'registers' in the comment.

Signed-off-by: Yan Zhen 
Acked-by: Palmer Dabbelt 
Link: https://lore.kernel.org/r/20240918034114.860132-1-yanzhen@vivo.com
Signed-off-by: Vinod Koul

dmaengine: Switch back to struct platform_driver::remove()

2024-10-14T18:20:34+00:00

After commit 0edb555a65d1 ("platform: Make platform_driver::remove()
return void") .remove() is (again) the right callback to implement for
platform drivers.

Convert all platform drivers below drivers/dma after the previous
conversion commits apart from the wireless drivers to use .remove(),
with the eventual goal to drop struct platform_driver::remove_new(). As
.remove() and .remove_new() have the same prototypes, conversion is done
by just changing the structure member name in the driver initializer.

Signed-off-by: Uwe Kleine-König 
Link: https://lore.kernel.org/r/20241004062227.187726-2-u.kleine-koenig@baylibre.com
Signed-off-by: Vinod Koul

dmaengine: Fix spelling mistakes

2024-09-02T08:26:01+00:00

Correct spelling mistakes in the DMA engine to improve readability
and clarity without altering functionality.

Signed-off-by: Amit Vadhavana 
Reviewed-by: Kees Cook 
Reviewed-by: Dave Jiang 
Reviewed-by: Fenghua Yu 
Link: https://lore.kernel.org/r/20240831172949.13189-1-av2082000@gmail.com
Signed-off-by: Vinod Koul

dmaengine: zynqmp_dma: Add support for AMD Versal Gen 2 DMA IP

2024-08-29T17:16:16+00:00

ZynqMP DMA IP and AMD Versal Gen 2 DMA IP are similar but have different
interrupt register offset. Create a dedicated compatible string to
support Versal Gen 2 DMA IP with Irq register offset for interrupt
Enable/Disable/Status/Mask functionality.

Signed-off-by: Abin Joseph 
Reviewed-by: Radhey Shyam Pandey 
Link: https://lore.kernel.org/r/20240808100024.317497-3-abin.joseph@amd.com
Signed-off-by: Vinod Koul

dmaengine: xilinx: dpdma: Add support for cyclic dma mode

2024-08-28T17:59:32+00:00

This patch adds support for DPDMA cyclic dma mode,
DMA cyclic transfers are required by audio streaming.

Signed-off-by: Rohit Visavalia 
Signed-off-by: Radhey Shyam Pandey 
Signed-off-by: Vishal Sagar 
Reviewed-by: Tomi Valkeinen 
Link: https://lore.kernel.org/r/20240821134043.2885506-1-vishal.sagar@amd.com
Signed-off-by: Vinod Koul

dmaengine: xilinx: xdma: Fix data synchronisation in xdma_channel_isr()

2024-06-07T17:11:51+00:00

Requests the vchan lock before using xdma->stop_request.

Fixes: 6a40fb824596 ("dmaengine: xilinx: xdma: Fix synchronization issue")
Cc: stable@vger.kernel.org
Signed-off-by: Louis Chauvet 
Link: https://lore.kernel.org/r/20240607-xdma-fixes-v2-1-0282319ce345@bootlin.com
Signed-off-by: Vinod Koul

Merge tag 'dmaengine-6.10-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/vkoul/dmaengine

2024-05-21T18:15:56+00:00

Pull dmaengine updates from Vinod Koul:
 "New HW support:
   - Freescale i.MX8ULP edma support in edma driver
   - StarFive JH8100 DMA support in Synopsis axi-dmac driver

  Updates:
   - Tracing support for freescale edma driver, updates to dpaa2 driver
   - Remove unused QCom hidma DT support
   - Support for i2c dma in imx-sdma
   - Maintainers update for idxd and edma drivers"

* tag 'dmaengine-6.10-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/vkoul/dmaengine: (42 commits)
  MAINTAINERS: Update role for IDXD driver
  dmaengine: fsl-edma: use _Generic to handle difference type
  dmaengine: fsl-edma: add trace event support
  dmaengine: idxd: Avoid unnecessary destruction of file_ida
  dmaengine: xilinx: xdma: fix module autoloading
  dt-bindings: dma: fsl-edma: allow 'power-domains' property
  dt-bindings: dma: fsl-edma: remove 'clocks' from required
  dmaengine: fsl-dpaa2-qdma: Fix kernel-doc check warning
  dmaengine: imx-sdma: Add i2c dma support
  dmaengine: imx-sdma: utilize compiler to calculate ADDRS_ARRAY_SIZE_V
  dt-bindings: fsl-imx-sdma: Add I2C peripheral types ID
  dt-bindings: fsl-dma: fsl-edma: clean up unused "fsl,imx8qm-adma" compatible string
  dmaengine: fsl-edma: clean up unused "fsl,imx8qm-adma" compatible string
  dt-bindings: dma: Drop unused QCom hidma binding
  dmaengine: qcom: Drop hidma DT support
  dmaengine: pl08x: Use kcalloc() instead of kzalloc()
  dmaengine: fsl-dpaa2-qdma: Update DPDMAI interfaces to version 3
  dmaengine: fsl-edma: fix miss mutex unlock at an error return path
  dmaengine: pch_dma: remove unused function chan2parent
  dmaengine: fsl-dpaa2-qdma: Add dpdmai_cmd_open
  ...

dmaengine: xilinx: xdma: fix module autoloading

2024-04-25T09:14:10+00:00

Add MODULE_DEVICE_TABLE(), so the module could be properly autoloaded
based on the alias from of_device_id table.

Signed-off-by: Krzysztof Kozlowski 
Link: https://lore.kernel.org/r/20240410170317.248715-2-krzk@kernel.org
Signed-off-by: Vinod Koul

dmaengine: xilinx: xdma: Clarify kdoc in XDMA driver

2024-04-07T11:38:45+00:00

Clarify the kernel doc of xdma_fill_descs(), especially how big chunks
will be handled.

Signed-off-by: Miquel Raynal 
Signed-off-by: Louis Chauvet 
Link: https://lore.kernel.org/stable/20240327-digigram-xdma-fixes-v1-3-45f4a52c0283%40bootlin.com
Link: https://lore.kernel.org/r/20240327-digigram-xdma-fixes-v1-3-45f4a52c0283@bootlin.com
Signed-off-by: Vinod Koul

dmaengine: xilinx: xdma: Fix synchronization issue

2024-04-07T11:38:45+00:00

The current xdma_synchronize method does not properly wait for the last
transfer to be done. Due to limitations of the XMDA engine, it is not
possible to stop a transfer in the middle of a descriptor. Said
otherwise, if a stop is requested at the end of descriptor "N" and the OS
is fast enough, the DMA controller will effectively stop immediately.
However, if the OS is slightly too slow to request the stop and the DMA
engine starts descriptor "N+1", the N+1 transfer will be performed until
its end. This means that after a terminate_all, the last descriptor must
remain valid and the synchronization must wait for this last descriptor to
be terminated.

Fixes: 855c2e1d1842 ("dmaengine: xilinx: xdma: Rework xdma_terminate_all()")
Fixes: f5c392d106e7 ("dmaengine: xilinx: xdma: Add terminate_all/synchronize callbacks")
Cc: stable@vger.kernel.org
Suggested-by: Miquel Raynal 
Signed-off-by: Louis Chauvet 
Link: https://lore.kernel.org/r/20240327-digigram-xdma-fixes-v1-2-45f4a52c0283@bootlin.com
Signed-off-by: Vinod Koul