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2014-12-22dmaengine: xilinx: Split device_controlMaxime Ripard1-23/+6
Split the device_control callback of the Xilinx VDMA 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> Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Vinod Koul <vinod.koul@intel.com>
2014-11-06dmaengine: xilinx: vdma: icg should be difference of stride and hsizeSrikanth Thokala1-1/+1
This patch modifies the icg field to match the description as mentioned in the DMA Linux framework. Signed-off-by: Srikanth Thokala <sthokal@xilinx.com> Signed-off-by: Michal Simek <michal.simek@xilinx.com> Signed-off-by: Vinod Koul <vinod.koul@intel.com>
2014-11-06dmaengine: xilinx: vdma: Allow only one chunk in a lineSrikanth Thokala1-0/+3
This patch adds a sanity check to see if frame_size is 1. Signed-off-by: Srikanth Thokala <sthokal@xilinx.com> Signed-off-by: Michal Simek <michal.simek@xilinx.com> Signed-off-by: Vinod Koul <vinod.koul@intel.com>
2014-11-06dmaengine: xilinx: vdma: Check if the segment list is empty in a descriptorSrikanth Thokala1-3/+5
The segment list in a descriptor should be checked for empty, else it will try to access invalid address for the first call. This patch fixes this issue. Signed-off-by: Srikanth Thokala <sthokal@xilinx.com> Signed-off-by: Michal Simek <michal.simek@xilinx.com> Signed-off-by: Vinod Koul <vinod.koul@intel.com>
2014-08-19dma: xilinx: Remove .owner field for driverMichal Simek1-1/+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: Michal Simek <michal.simek@xilinx.com> Reviewed-by: Levente Kurusa <lkurusa@redhat.com> Signed-off-by: Vinod Koul <vinod.koul@intel.com>
2014-04-30dma: Add Xilinx AXI Video Direct Memory Access Engine driver supportSrikanth Thokala2-0/+1380
This is the driver for the AXI Video Direct Memory Access (AXI VDMA) core, which is a soft Xilinx IP core that provides high- bandwidth direct memory access between memory and AXI4-Stream type video target peripherals. The core provides efficient two dimensional DMA operations with independent asynchronous read and write channel operation. This module works on Zynq (ARM Based SoC) and Microblaze platforms. Signed-off-by: Srikanth Thokala <sthokal@xilinx.com> Acked-by: Jassi Brar <jassisinghbrar@gmail.com> Reviewed-by: Levente Kurusa <levex@linux.com> Signed-off-by: Vinod Koul <vinod.koul@intel.com>