summaryrefslogtreecommitdiff
path: root/drivers/dma/imx-dma.c
AgeCommit message (Collapse)Author
2012-04-05dmaengine: add context parameter to prep_slave_sg and prep_dma_cyclicAlexandre Bounine
Add context parameter to device_prep_slave_sg() and device_prep_dma_cyclic() interfaces to allow passing client/target specific information associated with the data transfer. Modify all affected DMA engine drivers. Signed-off-by: Alexandre Bounine <alexandre.bounine@idt.com> Acked-by: Linus Walleij <linus.walleij@linaro.org> Acked-by: Felipe Balbi <balbi@ti.com> Signed-off-by: Vinod Koul <vinod.koul@linux.intel.com> Cherry-picked from mainline 185ecb5f4fd43911c35956d4cc7d94a1da30417f Change-Id: Ief79d20f6e9d367ee2b530d08df72864fb16895a Signed-off-by: Laxman Dewangan <ldewangan@nvidia.com> Reviewed-on: http://git-master/r/94464 Reviewed-by: Automatic_Commit_Validation_User
2012-04-03dmaengine: consolidate tx_status functionsRussell King - ARM Linux
Now that we have the completed cookie in the dma_chan structure, we can consolidate the tx_status functions by providing a function to set the txstate structure and returning the DMA status. We also provide a separate helper to set the residue for cookies which are still in progress. Change-Id: I4b7672bbd17d072bfde348d04481c8db48e814c4 Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk> Tested-by: Linus Walleij <linus.walleij@linaro.org> Reviewed-by: Linus Walleij <linus.walleij@linaro.org> Acked-by: Jassi Brar <jassisinghbrar@gmail.com> [imx-sdma.c & mxs-dma.c] Tested-by: Shawn Guo <shawn.guo@linaro.org> Signed-off-by: Vinod Koul <vinod.koul@linux.intel.com> (cherry picked from mainline commit 96a2af41c78b1fbb1f567a3486bdc63f7b31c5fd) Signed-off-by: Laxman Dewangan <ldewangan@nvidia.com> Change-Id: Ifdb55d85eb4789f221679f1f38f5566168e5c643 Reviewed-on: http://git-master/r/93782 Reviewed-by: Automatic_Commit_Validation_User
2012-04-03dmaengine: provide a common function for completing a dma descriptorRussell King - ARM Linux
Provide a common function to do the cookie mechanics for completing a DMA descriptor. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk> Tested-by: Linus Walleij <linus.walleij@linaro.org> Reviewed-by: Linus Walleij <linus.walleij@linaro.org> Acked-by: Jassi Brar <jassisinghbrar@gmail.com> [imx-sdma.c & mxs-dma.c] Tested-by: Shawn Guo <shawn.guo@linaro.org> Signed-off-by: Vinod Koul <vinod.koul@linux.intel.com> Cherry-picked from mainline commit f7fbce07c6ce26a25b4e0cb5f241c361fde87901 Change-Id: I0b0a9d4ad538db4fda227cc91436c44bc4a6f206 Signed-off-by: Laxman Dewangan <ldewangan@nvidia.com> Reviewed-on: http://git-master/r/93781 Reviewed-by: Automatic_Commit_Validation_User
2012-04-03dmaengine: consolidate assignment of DMA cookiesRussell King - ARM Linux
Everyone deals with assigning DMA cookies in the same way (it's part of the API so they should be), so lets consolidate the common code into a helper function to avoid this duplication. Change-Id: I730882ff0f84f9ae42dd137a8926b7ae10868370 Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk> Tested-by: Linus Walleij <linus.walleij@linaro.org> Reviewed-by: Linus Walleij <linus.walleij@linaro.org> Acked-by: Jassi Brar <jassisinghbrar@gmail.com> [imx-sdma.c & mxs-dma.c] Tested-by: Shawn Guo <shawn.guo@linaro.org> Signed-off-by: Vinod Koul <vinod.koul@linux.intel.com> (cherry picked from mainline commit 884485e1f12dcd39390f042e772cdbefc9ebb750) Signed-off-by: Laxman Dewangan <ldewangan@nvidia.com> Change-Id: Ifc4a395a5dbafad03f8b28e052ad0e7ea5d90163 Reviewed-on: http://git-master/r/93780 Reviewed-by: Automatic_Commit_Validation_User
2012-04-03dmaengine: add private header fileRussell King - ARM Linux
Add a local private header file to contain definitions and declarations which should only be used by DMA engine drivers. We also fix linux/dmaengine.h to use LINUX_DMAENGINE_H to guard against multiple inclusion. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk> Tested-by: Linus Walleij <linus.walleij@linaro.org> Reviewed-by: Linus Walleij <linus.walleij@linaro.org> Acked-by: Jassi Brar <jassisinghbrar@gmail.com> [imx-sdma.c & mxs-dma.c] Tested-by: Shawn Guo <shawn.guo@linaro.org> Signed-off-by: Vinod Koul <vinod.koul@linux.intel.com> (cherry picked from mainline commit d2ebfb335b0426deb1a4fb14e4e926d81ecd8235) Change-Id: I91b051537fa1890e2651ebe0409fa97cbc9191dd Signed-off-by: Laxman Dewangan <ldewangan@nvidia.com> Reviewed-on: http://git-master/r/93779 Reviewed-by: Automatic_Commit_Validation_User
2012-04-03dmaengine: move last completed cookie into generic dma_chan structureRussell King - ARM Linux
Every DMA engine implementation declares a last completed dma cookie in their private dma channel structures. This is pointless, and forces driver specific code. Move this out into the common dma_chan structure. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk> Tested-by: Linus Walleij <linus.walleij@linaro.org> Reviewed-by: Linus Walleij <linus.walleij@linaro.org> Acked-by: Jassi Brar <jassisinghbrar@gmail.com> [imx-sdma.c & mxs-dma.c] Tested-by: Shawn Guo <shawn.guo@linaro.org> Signed-off-by: Vinod Koul <vinod.koul@linux.intel.com> cherry-picked from mainline 4d4e58de32a192fea65ab84509d17d199bd291c8 Change-Id: Ib653bcfa5f492986946fd34006a8de3090db0441 Signed-off-by: Laxman Dewangan <ldewangan@nvidia.com> Reviewed-on: http://git-master/r/93778
2011-07-07ARM i.MX dma: Fix burstsize settingsSascha Hauer
dmaengine expects the maxburst parameter in words, not bytes. The imxdma driver and its users do this wrong. Fix this. As a side note the imx-pcm-dma-mx2 driver was 'fixed' to work with imx-dma. This broke the driver with imx-sdma support which correctly takes the maxburst parameter in words. This patch puts the sdma based sound back to work. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
2011-01-31dmaengine i.MX dma: initialize dma capabilities outside channel loopSascha Hauer
The capabilities are device specific fields, not channel specific fields. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
2011-01-31dmaengine i.MX DMA: do not initialize chan_id fieldSascha Hauer
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
2011-01-31dmaengine i.MX dma: check sg entries for valid addresses and lengthsSascha Hauer
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
2011-01-31dmaengine i.MX dma: set maximum segment size for our deviceSascha Hauer
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
2010-12-03dma: imx-dma: fix imxdma_probe error pathAxel Lin
otherwise, i will be -1 inside the latest iteration of the while loop. Signed-off-by: Axel Lin <axel.lin@gmail.com> Acked-by: Sascha Hauer <s.hauer@pengutronix.de> Signed-off-by: Dan Williams <dan.j.williams@intel.com>
2010-10-22dma: imx-dma: fix signedness bugSascha Hauer
mxdmac->channel was unsigned, so check (imxdmac->channel < 0) for failed imx_dma_request_by_prio() made no sence. Explicitly check signed values. Also, fix uninitialzed use of ret. Signed-off-by: Vasiliy Kulikov <segooon@gmail.com> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> Signed-off-by: Dan Williams <dan.j.williams@intel.com>
2010-10-07dmaengine: Add Freescale i.MX1/21/27 DMA driverSascha Hauer
This driver is currently implemented as a user to the old i.MX DMA API. This allows us to convert each user of the old API to the dmaengine API one by one. Once this is done the old DMA driver can be merged into the i.MX dmaengine driver. V2: remove some debug leftovers and unused variables Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> Acked-by: Linus Walleij <linus.walleij@stericsson.com> Signed-off-by: Dan Williams <dan.j.williams@intel.com>
generated by cgit v1.2.3 (git 2.0.4) at 2024-04-30 14:43:10 +0000