summaryrefslogtreecommitdiffstats
path: root/drivers/dma
Commit message (Collapse)AuthorAgeFilesLines
* Merge tag 'dmaengine-4.8-rc1' of git://git.infradead.org/users/vkoul/slave-dmaLinus Torvalds2016-07-2849-251/+3108
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Pull dmaengine updates from Vinod Koul: "This time we have bit of largish changes: two new drivers, bunch of updates and cleanups to existing set. Nothing super exciting though. New drivers: - Xilinx zynqmp dma engine driver - Marvell xor2 driver Updates: - dmatest sg support - updates and enhancements to Xilinx drivers, adding of cyclic mode - clock handling fixes across drivers - removal of OOM messages on kzalloc across subsystem - interleaved transfers support in omap driver - runtime pm support in qcom bam dma - tasklet kill freeup across drivers - irq cleanup on remove across drivers" * tag 'dmaengine-4.8-rc1' of git://git.infradead.org/users/vkoul/slave-dma: (94 commits) dmaengine: k3dma: add missing clk_disable_unprepare() on error in k3_dma_probe() dmaengine: zynqmp_dma: add missing MODULE_LICENSE dmaengine: qcom_hidma: use for_each_matching_node() macro dmaengine: zynqmp_dma: Fix static checker warning dmaengine: omap-dma: Support for interleaved transfer dmaengine: ioat: statify symbol dmaengine: pxa_dma: implement device_synchronize dmaengine: imx-sdma: remove assignment never used dmaengine: imx-sdma: remove dummy assignment dmaengine: cppi: remove unused and bogus check dmaengine: qcom_hidma_lli: kill the tasklets upon exit dmaengine: pxa_dma: remove owner assignment dmaengine: fsl_raid: remove owner assignment dmaengine: coh901318: remove owner assignment dmaengine: qcom_hidma: kill the tasklets upon exit dmaengine: txx9dmac: explicitly freeup irq dmaengine: sirf-dma: kill the tasklets upon exit dmaengine: s3c24xx: kill the tasklets upon exit dmaengine: s3c24xx: explicitly freeup irq dmaengine: pl330: explicitly freeup irq ...
| * Merge branch 'topic/dmaengine_cleanups' into for-linusVinod Koul2016-07-2823-23/+222
| |\
| | * dmaengine: ioat: statify symbolVinod Koul2016-07-231-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | Sparse warns: drivers/dma/ioat/init.c:1215:6: warning: symbol 'ioat_resume' was not declared. Should it be static? Signed-off-by: Vinod Koul <vinod.koul@intel.com> Acked-by: Dave Jiang <dave.jiang@intel.com>
| | * dmaengine: pxa_dma: implement device_synchronizeRobert Jarzmik2016-07-231-0/+15
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Implement the function which wait until a dma channel is stopped to have a synchronization point. This also protects the pxad_remove() from races, such as spurious interrupts while removing the driver, because : - as long as there is one dma channel requested, ie. dma_chan_get() but no dma_chan_put(), the try_module_get() of dma_chan_get() prevents the remove() routine from running - when the last channel is released, ie. the last dma_chan_put() is called, if there is a running DMA, pxad_synchronize() is called - pxad_synchronize() waits for the channel to stop, which in turn ensures on pxa architecture that the interrupt cannot be fired anymore Reported-by: Vinod Koul <vinod.koul@intel.com> Signed-off-by: Robert Jarzmik <robert.jarzmik@free.fr> Signed-off-by: Vinod Koul <vinod.koul@intel.com>
| | * dmaengine: imx-sdma: remove assignment never usedVinod Koul2016-07-231-2/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | David reported: [drivers/dma/imx-sdma.c:769]: (style) Variable 'emi_2_emi' is assigned a value that is never used Since emi_2_emi is never used afterwards, remove thsi as well Reported-by: David Binderman <dcb314@hotmail.com> Cc: Sascha Hauer <s.hauer@pengutronix.de> Cc: Fabio Estevam <fabio.estevam@freescale.com> Signed-off-by: Vinod Koul <vinod.koul@intel.com>
| | * dmaengine: imx-sdma: remove dummy assignmentVinod Koul2016-07-231-2/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | David reported: drivers/dma/imx-sdma.c:1003]: (style) Same expression on both sides of '|=' ORing with itself yields same result, So remove this Reported-by: David Binderman <dcb314@hotmail.com> Cc: Sascha Hauer <s.hauer@pengutronix.de> Cc: Fabio Estevam <fabio.estevam@freescale.com> Signed-off-by: Vinod Koul <vinod.koul@intel.com>
| | * dmaengine: cppi: remove unused and bogus checkVinod Koul2016-07-231-3/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | In cppi41_dma_prep_slave_sg() variable num is initialized to zero, but never updated and a BUG_ON is checked for it being greater than zero which will be always false. Remove the bogus check and this variable Reported-by: David Binderman <linuxdev.baldrick@gmail.com> Signed-off-by: Vinod Koul <vinod.koul@intel.com>
| | * dmaengine: qcom_hidma_lli: kill the tasklets upon exitVinod Koul2016-07-231-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | drivers should ensure that tasklets are killed, so that they can't be run after driver remove is executed Signed-off-by: Vinod Koul <vinod.koul@intel.com> Cc: Sinan Kaya <okaya@codeaurora.org>
| | * dmaengine: pxa_dma: remove owner assignmentVinod Koul2016-07-231-1/+0
| | | | | | | | | | | | | | | | | | | | | debugfs file operations owner is set by core, so remove Signed-off-by: Vinod Koul <vinod.koul@intel.com> Acked-by: Robert Jarzmik <robert.jarzmik@free.fr>
| | * dmaengine: fsl_raid: remove owner assignmentVinod Koul2016-07-231-1/+0
| | | | | | | | | | | | | | | | | | | | | platform driver operations owner is set by core, so remove Signed-off-by: Vinod Koul <vinod.koul@intel.com> Cc: Xuelin Shi <xuelin.shi@freescale.com>
| | * dmaengine: coh901318: remove owner assignmentVinod Koul2016-07-231-1/+0
| | | | | | | | | | | | | | | | | | | | | debugfs file operations owner is set by core, so remove Signed-off-by: Vinod Koul <vinod.koul@intel.com> Cc: Linus Walleij <linus.walleij@linaro.org>
| | * dmaengine: qcom_hidma: kill the tasklets upon exitVinod Koul2016-07-231-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | drivers should ensure that tasklets are killed, so that they can't be run after driver remove is executed Signed-off-by: Vinod Koul <vinod.koul@intel.com> Acked-by: Sinan Kaya <okaya@codeaurora.org>
| | * dmaengine: txx9dmac: explicitly freeup irqVinod Koul2016-07-231-2/+7
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | dmaengine device should explicitly call devm_free_irq() when using devm_request_irq(). The irq is still ON when devices remove is executed and irq should be quiesced before remove is completed. Signed-off-by: Vinod Koul <vinod.koul@intel.com>
| | * dmaengine: sirf-dma: kill the tasklets upon exitVinod Koul2016-07-231-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | drivers should ensure that tasklets are killed, so that they can't be run after driver remove is executed Signed-off-by: Vinod Koul <vinod.koul@intel.com> Cc: Barry Song <Baohua.Song@csr.com>
| | * dmaengine: s3c24xx: kill the tasklets upon exitVinod Koul2016-07-231-1/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | drivers should ensure that tasklets are killed, so that they can't be executed after driver remove is executed, so ensure they are killed. This driver used vchan tasklets, so those need to be killed. Signed-off-by: Vinod Koul <vinod.koul@intel.com> Reviewed-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
| | * dmaengine: s3c24xx: explicitly freeup irqVinod Koul2016-07-231-0/+14
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | dmaengine device should explicitly call devm_free_irq() when using devm_request_irq(). The irq is still ON when devices remove is executed and irq should be quiesced before remove is completed. Signed-off-by: Vinod Koul <vinod.koul@intel.com> Reviewed-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
| | * dmaengine: pl330: explicitly freeup irqVinod Koul2016-07-161-0/+6
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | dmaengine device should explicitly call devm_free_irq() when using devm_request_irq(). The irq is still ON when devices remove is executed and irq should be quiesced before remove is completed. Signed-off-by: Vinod Koul <vinod.koul@intel.com> Cc: Jassi Brar <jassisinghbrar@gmail.com> Cc: Linus Walleij <linus.walleij@linaro.org>
| | * dmaengine: omap-dma: explicitly freeup irqVinod Koul2016-07-161-0/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | dmaengine device should explicitly call devm_free_irq() when using devm_request_irq(). The irq is still ON when devices remove is executed and irq should be quiesced before remove is completed. Signed-off-by: Vinod Koul <vinod.koul@intel.com> Acked-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
| | * dmaengine: mpc512x: kill the tasklets upon exitVinod Koul2016-07-161-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | drivers should ensure that tasklets are killed, so that they can't be run after driver remove is executed Signed-off-by: Vinod Koul <vinod.koul@intel.com> Cc: Mario Six <mario.six@gdsys.cc>
| | * dmaengine: nbpfaxi: kill the tasklets upon exitVinod Koul2016-07-161-0/+2
| | | | | | | | | | | | | | | | | | | | | | | | drivers should ensure that tasklets are killed, so that they can't be run after driver remove is executed Signed-off-by: Vinod Koul <vinod.koul@intel.com> Cc: Guennadi Liakhovetski <g.liakhovetski+renesas@gmail.com>
| | * dmaengine: nbpfaxi: explicitly freeup irqVinod Koul2016-07-161-0/+11
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | dmaengine device should explicitly call devm_free_irq() when using devm_request_irq(). The irq is still ON when devices remove is executed and irq should be quiesced before remove is completed. Signed-off-by: Vinod Koul <vinod.koul@intel.com> Cc: Guennadi Liakhovetski <g.liakhovetski+renesas@gmail.com>
| | * dmaengine: moxart-dma: explicitly freeup irqVinod Koul2016-07-161-0/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | dmaengine device should explicitly call devm_free_irq() when using devm_request_irq(). The irq is still ON when devices remove is executed and irq should be quiesced before remove is completed. Signed-off-by: Vinod Koul <vinod.koul@intel.com> Cc: Jonas Jensen <jonas.jensen@gmail.com>
| | * dmaengine: mmp_tdma: statify symbolsVinod Koul2016-07-161-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Sparse complains: drivers/dma/mmp_tdma.c:407:22: warning: symbol 'mmp_tdma_alloc_descriptor' was not declared. Should it be static? drivers/dma/mmp_tdma.c:595:17: warning: symbol 'mmp_tdma_xlate' was not declared. Should it be static? Signed-off-by: Vinod Koul <vinod.koul@intel.com> Cc: Qiao Zhou <zhouqiao@marvell.com>
| | * dmaengine: mmp_pdma: explicitly freeup irqVinod Koul2016-07-161-0/+19
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | dmaengine device should explicitly call devm_free_irq() when using devm_request_irq(). The irq is still ON when devices remove is executed and irq should be quiesced before remove is completed. Signed-off-by: Vinod Koul <vinod.koul@intel.com> Acked-by: Zhangfei Gao <zhangfei.gao@linaro.org>
| | * dmaengine: k3dma: explicitly freeup irqVinod Koul2016-07-161-0/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | dmaengine device should explicitly call devm_free_irq() when using devm_request_irq(). The irq is still ON when devices remove is executed and irq should be quiesced before remove is completed. Signed-off-by: Vinod Koul <vinod.koul@intel.com> Acked-by: Zhangfei Gao <zhangfei.gao@linaro.org>
| | * dmaengine: imx-sdma: explicitly freeup irqVinod Koul2016-07-161-0/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | dmaengine device should explicitly call devm_free_irq() when using devm_request_irq(). The irq is still ON when devices remove is executed and irq should be quiesced before remove is completed. Signed-off-by: Vinod Koul <vinod.koul@intel.com> Cc: Sascha Hauer <s.hauer@pengutronix.de> Cc: Fabio Estevam <fabio.estevam@freescale.com>
| | * dmaengine: imx-dma: fix coding style issueVinod Koul2016-07-161-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | imxdma_probe function starting brace is wrongly indented, so fix that Signed-off-by: Vinod Koul <vinod.koul@intel.com> Cc: Sascha Hauer <s.hauer@pengutronix.de> Cc: Linus Walleij <linus.walleij@linaro.org>
| | * dmaengine: imx-dma: explicitly freeup irqVinod Koul2016-07-161-0/+29
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | dmaengine device should explicitly call devm_free_irq() when using devm_request_irq(). The irq is still ON when devices remove is executed and irq should be quiesced before remove is completed. Signed-off-by: Vinod Koul <vinod.koul@intel.com>
| | * dmaengine: fsl-edma: kill the tasklets upon exitVinod Koul2016-07-161-0/+12
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | drivers should ensure that tasklets are killed, so that they can't be executed after driver remove is executed, so ensure they are killed. This driver used vchan tasklets, so those need to be killed. Signed-off-by: Vinod Koul <vinod.koul@intel.com> Cc: Jingchang Lu <b35083@freescale.com> Cc: Peter Griffin <peter.griffin@linaro.org>
| | * dmaengine: jz4740: kill the tasklets upon exitVinod Koul2016-07-161-0/+14
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | drivers should ensure that tasklets are killed, so that they can't be executed after driver remove is executed, so ensure they are killed. This driver used vchan tasklets, so those need to be killed. Signed-off-by: Vinod Koul <vinod.koul@intel.com> Acked-by: Lars-Peter Clausen <lars@metafoo.de>
| | * dmaengine: fsl_raid: fix size_t print specifiersVinod Koul2016-07-161-3/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | size_t should be printed with %zu, not %lu as driver did, so fix these warning by doing this change drivers/dma/fsl_raid.c: In function 'fsl_re_prep_dma_genq': drivers/dma/fsl_raid.c:341:4: warning: format '%lu' expects argument of type 'long unsigned int', but argument 3 has type 'size_t' [-Wformat=] len, FSL_RE_MAX_DATA_LEN); ^ drivers/dma/fsl_raid.c: In function 'fsl_re_prep_dma_pq': drivers/dma/fsl_raid.c:428:4: warning: format '%lu' expects argument of type 'long unsigned int', but argument 3 has type 'size_t' [-Wformat=] len, FSL_RE_MAX_DATA_LEN); ^ drivers/dma/fsl_raid.c: In function 'fsl_re_prep_dma_memcpy': drivers/dma/fsl_raid.c:549:4: warning: format '%lu' expects argument of type 'long unsigned int', but argument 3 has type 'size_t' [-Wformat=] len, FSL_RE_MAX_DATA_LEN); ^ Signed-off-by: Vinod Koul <vinod.koul@intel.com>
| | * dmaengine: fsl_raid: kill the tasklets upon exitVinod Koul2016-07-161-0/+2
| | | | | | | | | | | | | | | | | | | | | | | | drivers should ensure that tasklets are killed, so that they can't be run after driver remove is executed Signed-off-by: Vinod Koul <vinod.koul@intel.com> Cc: Xuelin Shi <xuelin.shi@freescale.com>
| | * dmaengine: fsl-edma: explicitly freeup irqVinod Koul2016-07-161-0/+12
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | dmaengine device should explicitly call devm_free_irq() when using devm_request_irq(). The irq is still ON when devices remove is executed and irq should be quiesced before remove is completed. Signed-off-by: Vinod Koul <vinod.koul@intel.com> Cc: Jingchang Lu <b35083@freescale.com> Cc: Peter Griffin <peter.griffin@linaro.org>
| | * dmaengine: edma: kill the tasklets upon exitVinod Koul2016-07-161-0/+13
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | drivers should ensure that tasklets are killed, so that they can't be executed after driver remove is executed, so ensure they are killed. This driver used vchan tasklets, so those need to be killed. Signed-off-by: Vinod Koul <vinod.koul@intel.com> Acked-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
| | * dmaengine: edma: explicitly freeup irqVinod Koul2016-07-161-0/+8
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | dmaengine device should explicitly call devm_free_irq() when using devm_request_irq(). The irq is still ON when devices remove is executed and irq should be quiesced before remove is completed. Signed-off-by: Vinod Koul <vinod.koul@intel.com> Acked-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
| | * dmaengine: coh901318: statify symbolsVinod Koul2016-07-161-3/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Sparse complains: drivers/dma/coh901318.c:269:30: warning: symbol 'chan_config' was not declared. Should it be static? drivers/dma/coh901318.c:2806:12: warning: symbol 'coh901318_init' was not declared. Should it be static? drivers/dma/coh901318.c:2812:13: warning: symbol 'coh901318_exit' was not declared. Should it be static? Signed-off-by: Vinod Koul <vinod.koul@intel.com> Acked-by: Linus Walleij <linus.walleij@linaro.org>
| | * dmaengine: coh901318: kill the tasklets upon exitVinod Koul2016-07-161-0/+18
| | | | | | | | | | | | | | | | | | | | | | | | drivers should ensure that tasklets are killed, so that they can't be run after driver remove is executed. Signed-off-by: Vinod Koul <vinod.koul@intel.com> Acked-by: Linus Walleij <linus.walleij@linaro.org>
| | * dmaengine: coh901318: explicitly freeup irqVinod Koul2016-07-161-0/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | dmaengine device should explicitly call devm_free_irq() when using devm_request_irq(). The irq is still ON when devices remove is executed and irq should be quiesced before remove is completed. Signed-off-by: Vinod Koul <vinod.koul@intel.com> Acked-by: Linus Walleij <linus.walleij@linaro.org>
| * | dmaengine: k3dma: add missing clk_disable_unprepare() on error in k3_dma_probe()Wei Yongjun2016-07-241-1/+3
| | | | | | | | | | | | | | | | | | | | | | | | Add the missing clk_disable_unprepare() before return from k3_dma_probe() in the error handling case. Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn> Signed-off-by: Vinod Koul <vinod.koul@intel.com>
| * | dmaengine: zynqmp_dma: add missing MODULE_LICENSEArnd Bergmann2016-07-241-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | We get a warning about the missing MODULE_LICENSE tag for this newly added driver module: WARNING: modpost: missing MODULE_LICENSE() in drivers/dma/xilinx/zynqmp_dma.o see include/linux/module.h for more information This adds a "GPL" license, matching the "version 2 or later" information in the comment at the start of the file. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Acked-by: Kedareswara rao Appana <appanad@xilinx.com> Signed-off-by: Vinod Koul <vinod.koul@intel.com>
| * | dmaengine: qcom_hidma: use for_each_matching_node() macroWei Yongjun2016-07-241-2/+1
| | | | | | | | | | | | | | | | | | | | | | | | Use for_each_matching_node() macro instead of open coding it. Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn> Acked-by: Sinan Kaya <okaya@codeaurora.org> Signed-off-by: Vinod Koul <vinod.koul@intel.com>
| * | dmaengine: zynqmp_dma: Fix static checker warningKedareswara rao Appana2016-07-241-3/+8
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch fixes the below static checker warning drivers/dma/xilinx/zynqmp_dma.c:973 zynqmp_dma_chan_probe() warn: was && intended here instead of ||? Reported-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: Kedareswara rao Appana <appanad@xilinx.com> Signed-off-by: Vinod Koul <vinod.koul@intel.com>
| * | dmaengine: omap-dma: Support for interleaved transferPeter Ujfalusi2016-07-241-4/+92
| |/ | | | | | | | | | | | | | | | | Initial support for interleaved transfer with sDMA. The implementation only supports DMA_MEM_TO_MEM and frame_size must be 1. sDMA needs to be configured for double indexing when ICG is needed. Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com> Signed-off-by: Vinod Koul <vinod.koul@intel.com>
| * dmaengine: dmatest: Add support for scatter-gather DMA modeKedareswara rao Appana2016-07-161-2/+41
| | | | | | | | | | | | | | | | This patch updates the dmatest client to Support scatter-gather dma mode. Signed-off-by: Kedareswara rao Appana <appanad@xilinx.com> Signed-off-by: Vinod Koul <vinod.koul@intel.com>
| * Merge branch 'topic/xilinx' into for-linusVinod Koul2016-07-164-59/+1596
| |\
| | * dmaengine: zynqmp: avoid cast warningArnd Bergmann2016-07-121-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The newly added zynqmp_dma driver produces a warning on 32-bit architectures when dma_addr_t is 64-bit wide: drivers/dma/xilinx/zynqmp_dma.c: In function 'zynqmp_dma_config_sg_ll_desc': drivers/dma/xilinx/zynqmp_dma.c:321:9: error: cast from pointer to integer of different size [-Werror=pointer-to-int-cast] ((dma_addr_t)sdesc - (dma_addr_t)chan->desc_pool_v); ^ drivers/dma/xilinx/zynqmp_dma.c:321:29: error: cast from pointer to integer of different size [-Werror=pointer-to-int-cast] ((dma_addr_t)sdesc - (dma_addr_t)chan->desc_pool_v); This changes the cast to the more appropriate uintptr_t. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Vinod Koul <vinod.koul@intel.com>
| | * dmaengine: xilinx: Fix race condition in axi dma cyclic dma modeKedareswara rao Appana2016-07-121-4/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | In cyclic DMA mode need to link the tail bd segment with the head bd segment to process bd's in cyclic. Current driver is doing this only for tx channel needs to update the same for rx channel case also. This patch fixes the same. Signed-off-by: Kedareswara rao Appana <appanad@xilinx.com> Signed-off-by: Vinod Koul <vinod.koul@intel.com>
| | * dmaengine: Add Xilinx zynqmp dma engine driver supportKedareswara rao Appana2016-07-083-0/+1153
| | | | | | | | | | | | | | | | | | | | | | | | | | | Added the driver for zynqmp dma engine used in Zynq UltraScale+ MPSoC. This dma controller supports memory to memory and I/O to I/O buffer transfers. Signed-off-by: Kedareswara rao Appana <appanad@xilinx.com> Signed-off-by: Vinod Koul <vinod.koul@intel.com>
| | * dmaengine: xilinx: Use different channel names for each dmaKedareswara rao Appana2016-07-081-2/+6
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Current driver assumes that child node channel name is either "xlnx,axi-vdma-mm2s-channel" or "xlnx,axi-vdma-s2mm-channel" which is confusing the users of AXI DMA and CDMA. This patch fixes this issue by using different channel names for the AXI DMA and AXI CDMA child nodes. Signed-off-by: Kedareswara rao Appana <appanad@xilinx.com> Acked-by: Rob Herring <robh@kernel.org> Signed-off-by: Vinod Koul <vinod.koul@intel.com>
| | * dmaengine: xilinx: Rename driver and configKedareswara rao Appana2016-07-083-4/+9
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | In the existing vdma driver support for AXI DMA and CDMA got added so the driver is no longer VDMA specific. This patch renames the driver and DT binding doc to xilinx_dma and updates the Kconfig description for all the DMAS. Signed-off-by: Kedareswara rao Appana <appanad@xilinx.com> Signed-off-by: Vinod Koul <vinod.koul@intel.com>
generated by cgit v1.2.3 (git 2.25.1) at 2024-08-15 06:39:55 +0000