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2015-08-17Documentation: dmaengine: Add DMA_CTRL_REUSE documentationVinod Koul
Signed-off-by: Vinod Koul <vinod.koul@intel.com> Acked-by:Robert Jarzmik <robert.jarzmik@free.fr>
2015-08-17Documentation: dmaengine: fix the DMA_CTRL_ACK documentationVinod Koul
As discussed recently the meaning of DMA_CTRL_ACK is that a desc cannot be reused by provider until the client acknowledges receipt, i.e. has has a chance to establish any dependency chains. So update documentation Signed-off-by: Vinod Koul <vinod.koul@intel.com> Acked-by:Robert Jarzmik <robert.jarzmik@free.fr>
2015-06-25Merge branch 'topic/pxa' into for-linusVinod Koul
2015-06-17Documentation: dmaengine: document DMA_CTRL_ACKRobert Jarzmik
Add documentation about acking the transfers, and their reusability. Signed-off-by: Robert Jarzmik <robert.jarzmik@free.fr> Acked-by: Maxime Ripard <maxime.ripard@free-electrons.com> Signed-off-by: Vinod Koul <vinod.koul@intel.com>
2015-05-26Documentation: dmaengine: pxa-dma designRobert Jarzmik
Document the new design of the pxa dma driver. Signed-off-by: Robert Jarzmik <robert.jarzmik@free.fr> Signed-off-by: Vinod Koul <vinod.koul@intel.com>
2015-02-18Merge branch 'for-linus' of git://git.infradead.org/users/vkoul/slave-dmaLinus Torvalds
Pull dmaengine updates from Vinod Koul: "This update brings: - the big cleanup up by Maxime for device control and slave capabilities. This makes the API much cleaner. - new IMG MDC driver by Andrew - new Renesas R-Car Gen2 DMA Controller driver by Laurent along with bunch of fixes on rcar drivers - odd fixes and updates spread over driver" * 'for-linus' of git://git.infradead.org/users/vkoul/slave-dma: (130 commits) dmaengine: pl330: add DMA_PAUSE feature dmaengine: pl330: improve pl330_tx_status() function dmaengine: rcar-dmac: Disable channel 0 when using IOMMU dmaengine: rcar-dmac: Work around descriptor mode IOMMU errata dmaengine: rcar-dmac: Allocate hardware descriptors with DMAC device dmaengine: rcar-dmac: Fix oops due to unintialized list in error ISR dmaengine: rcar-dmac: Fix spinlock issues in interrupt dmaenegine: edma: fix sparse warnings dmaengine: rcar-dmac: Fix uninitialized variable usage dmaengine: shdmac: extend PM methods dmaengine: shdmac: use SET_RUNTIME_PM_OPS() dmaengine: pl330: fix bug that cause start the same descs in cyclic dmaengine: at_xdmac: allow muliple dwidths when doing slave transfers dmaengine: at_xdmac: simplify channel configuration stuff dmaengine: at_xdmac: introduce save_cc field dmaengine: at_xdmac: wait for in-progress transaction to complete after pausing a channel ioat: fail self-test if wait_for_completion times out dmaengine: dw: define DW_DMA_MAX_NR_MASTERS dmaengine: dw: amend description of dma_dev field dmatest: move src_off, dst_off, len inside loop ...
2014-12-29Update of Documentation/dmaengine/00-INDEXHenrik Austad
- client.txt was moved by f36d2e67 (dmaengine: Move the current doc to a folder of its own) - dmatmest.txt was moved by 935cdb56 (dmanegine: move dmatest.txt to dmaengine folder) - provider.txt was added by c4d2ae967 (Documentation: dmaengine: Add a documentation for the dma controller API). Cc: Maxime Ripard <maxime.ripard@free-electrons.com> Cc: Vinod Koul <vinod.koul@intel.com> Cc: Jonathan Corbet <corbet@lwn.net> Cc: dmaengine@vger.kernel.org Cc: linux-doc@vger.kernel.org Signed-off-by: Henrik Austad <henrik@austad.us> Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2014-12-22Documentation: dmaengine: clarify dma_slave_config expectationsVinod Koul
dma_slave_config is expected to be set for slave operations Only, not for memcpy ones Signed-off-by: Vinod Koul <vinod.koul@intel.com>
2014-12-22Documentation: dmaengine: Update the documentationMaxime Ripard
Now that we have splitted device_control and removed device_slave_caps in favor of a few dma_device variables, update the documentation accordingly. Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com> Signed-off-by: Vinod Koul <vinod.koul@intel.com>
2014-11-06Documentation: dmanegine: move dmatest.txt to dmaengine folderVinod Koul
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
2014-11-06Documentation: dmaengine: Add a documentation for the dma controller APIMaxime Ripard
The dmaengine is neither trivial nor properly documented at the moment, which means a lot of trial and error development, which is not that good for such a central piece of the system. Attempt at making such a documentation. Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com> [fixed some minor typos] Signed-off-by: Vinod Koul <vinod.koul@intel.com>
2014-11-06Documentation: dmaengine: Move the current doc to a folder of its ownMaxime Ripard
Move the current client-side documentation to a subfolder to prepare the introduction of a provider-side API documentation. Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com> Signed-off-by: Vinod Koul <vinod.koul@intel.com>