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path: root/drivers/dma/dma-jz4740.c
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2016-07-16dmaengine: jz4740: kill the tasklets upon exitVinod Koul1-0/+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>
2015-04-24Merge branch 'for-linus' of git://git.infradead.org/users/vkoul/slave-dmaLinus Torvalds1-11/+1
Pull slave-dmaengine updates from Vinod Koul: - new drivers for: - Ingenic JZ4780 controller - APM X-Gene controller - Freescale RaidEngine device - Renesas USB Controller - remove device_alloc_chan_resources dummy handlers - sh driver cleanups for peri peri and related emmc and asoc patches as well - fixes and enhancements spread over the drivers * 'for-linus' of git://git.infradead.org/users/vkoul/slave-dma: (59 commits) dmaengine: dw: don't prompt for DW_DMAC_CORE dmaengine: shdmac: avoid unused variable warnings dmaengine: fix platform_no_drv_owner.cocci warnings dmaengine: pch_dma: fix memory leak on failure path in pch_dma_probe() dmaengine: at_xdmac: unlock spin lock before return dmaengine: xgene: devm_ioremap() returns NULL on error dmaengine: xgene: buffer overflow in xgene_dma_init_channels() dmaengine: usb-dmac: Fix dereferencing freed memory 'desc' dmaengine: sa11x0: report slave capabilities to upper layers dmaengine: vdma: Fix compilation warnings dmaengine: fsl_raid: statify fsl_re_chan_probe dmaengine: Driver support for FSL RaidEngine device. dmaengine: xgene_dma_init_ring_mngr() can be static Documentation: dma: Add documentation for the APM X-Gene SoC DMA device DTS binding arm64: dts: Add APM X-Gene SoC DMA device and DMA clock DTS nodes dmaengine: Add support for APM X-Gene SoC DMA engine driver dmaengine: usb-dmac: Add Renesas USB DMA Controller (USB-DMAC) driver dmaengine: renesas,usb-dmac: Add device tree bindings documentation dmaengine: edma: fixed wrongly initialized data parameter to the edma callback dmaengine: ste_dma40: fix implicit conversion ...
2015-03-30dmaengine: jz4740: Define capabilitiesLars-Peter Clausen1-0/+7
Setup the capabilities of the device/driver, so that users of the DMAengine API can query them. Signed-off-by: Lars-Peter Clausen <lars@metafoo.de> Signed-off-by: Vinod Koul <vinod.koul@intel.com>
2015-03-18Merge branch 'topic/alloc_removal' into for-linusVinod Koul1-6/+0
2015-03-18dmaengine: jz4740: remove device_alloc_chan_resources handlerVinod Koul1-6/+0
Now that device_alloc_chan_resources handler in not mandatory, remove dummy implementations Acked-by: Lars-Peter Clausen <lars@metafoo.de> Signed-off-by: Vinod Koul <vinod.koul@intel.com>
2015-03-16dmaengine: Remove FSF mailing addressesJarkko Nikula1-4/+0
Free Software Foundation mailing address has been moved in the past and some of the addresses here are outdated. Remove them from file headers since the COPYING file in the kernel sources includes it. Signed-off-by: Jarkko Nikula <jarkko.nikula@linux.intel.com> Signed-off-by: Vinod Koul <vinod.koul@intel.com>
2015-03-05dmaengine: jz4740: Remove extra checkTapasweni Pathak1-1/+1
Remove double check on chan->desc. Found by Coccinelle. Signed-off-by: Tapasweni Pathak <tapaswenipathak@gmail.com> Acked-by: Julia Lawall <julia.lawall@lip6.fr> Signed-off-by: Vinod Koul <vinod.koul@intel.com>
2014-12-22dmaengine: jz4740: Split device_controlMaxime Ripard1-17/+3
Split the device_control callback of the JZ4740 DMA driver to make use of the newly introduced callbacks, that will eventually be used to retrieve slave capabilities. Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com> Signed-off-by: Vinod Koul <vinod.koul@intel.com>
2014-11-06dmaengine: Remove .owner field for driverKiran Padwal1-1/+0
There is no need to init .owner field. Based on the patch from Peter Griffin <peter.griffin@linaro.org> "mmc: remove .owner field for drivers using module_platform_driver" This patch removes the superflous .owner field for drivers which use the module_platform_driver API, as this is overriden in platform_driver_register anyway." Signed-off-by: Kiran Padwal <kiran.padwal@smartplayin.com> [for nvidia] Acked-by: Thierry Reding <treding@nvidia.com> Signed-off-by: Vinod Koul <vinod.koul@intel.com>
2014-11-06dmaengine: jz4740: Remove chancnt affectationsMaxime Ripard1-2/+1
chanctnt is already filled by dma_async_device_register, which uses the channel list to know how much channels there is. Since it's already filled, we can safely remove it from the drivers' probe function. Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com> Signed-off-by: Vinod Koul <vinod.koul@intel.com>
2014-09-11dmaengine: jz4740: Fix non-cyclic descriptor completionLars-Peter Clausen1-1/+2
We need to make sure to deqeueue the descriptor from the active list before we call vchan_cookie_complete(). Also we need obviously only set chan->desc to NULL after we stopped using it. Signed-off-by: Lars-Peter Clausen <lars@metafoo.de> Signed-off-by: Vinod Koul <vinod.koul@intel.com>
2014-08-04dmaengine: Remove the context argument to the prep_dma_cyclic operationLaurent Pinchart1-1/+1
The argument is always set to NULL and never used. Remove it. Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Signed-off-by: Vinod Koul <vinod.koul@intel.com>
2014-07-25dmaengine: jz4740: Fix GPL v2 license string typoBjorn Helgaas1-1/+1
Per license_is_gpl_compatible(), the MODULE_LICENSE() string for GPL v2 is "GPL v2", not "GPLv2". Use "GPL v2" so this module doesn't taint the kernel. Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> Acked-by: Lars-Peter Clausen <lars@metafoo.de> Signed-off-by: Vinod Koul <vinod.koul@intel.com>
2013-10-25dmaengine: jz4740: use DMA_COMPLETE for dma completion statusVinod Koul1-1/+1
Acked-by: Dan Williams <dan.j.williams@intel.com> Acked-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Vinod Koul <vinod.koul@intel.com>
2013-07-05MIPS: jz4740: Remove custom DMA APILars-Peter Clausen1-37/+221
Now that all users of the custom jz4740 DMA API have been converted to use the dmaengine API instead we can remove the custom API and move all the code talking to the hardware to the dmaengine driver. Signed-off-by: Lars-Peter Clausen <lars@metafoo.de> Acked-by: Ralf Baechle <ralf@linux-mips.org> Signed-off-by: Vinod Koul <vinod.koul@intel.com>
2013-07-05dma: Add a jz4740 dmaengine driverLars-Peter Clausen1-0/+433
This patch adds dmaengine support for the JZ4740 DMA controller. For now the driver will be a wrapper around the custom JZ4740 DMA API. Once all users of the custom JZ4740 DMA API have been converted to the dmaengine API the custom API will be removed and direct hardware access will be added to the dmaengine driver. Signed-off-by: Lars-Peter Clausen <lars@metafoo.de> Signed-off-by: Vinod Koul <vinod.koul@intel.com>
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