Kedareswara rao Appana fe0503e193 dmaeninge: xilinx_dma: Fix bug in multiple frame stores scenario in vdma ... VDMA engine default frame buffer configuration is cirular mode. in this mode dmaengine continuously circles through h/w configured fstore frame buffers. When vdma h/w is configured for more than one frame. for example h/w is configured for n number of frames, user submits less than n number of frames and triggered the dmaengine using issue_pending API. since the h/w (or) driver default configuraiton is circular mode h/w tries to write/read from an invalid frame buffer resulting errors from the vdma dmaengine. This patch fixes this issue by enabling the park mode as default mode configuration for frame buffers in s/w, so that driver can handle all cases for "k" frames where n%k==0 (n is a multiple of k) by simply replicating the frame pointers. Signed-off-by: Kedareswara rao Appana <appanad@xilinx.com> Signed-off-by: Vinod Koul <vinod.koul@intel.com>		2017-12-18 10:44:09 +05:30
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Makefile	dmaengine: Add Xilinx zynqmp dma engine driver support	2016-07-08 11:25:34 +05:30
xilinx_dma.c	dmaeninge: xilinx_dma: Fix bug in multiple frame stores scenario in vdma	2017-12-18 10:44:09 +05:30
zynqmp_dma.c	dmaengine: zynqmp_dma: Fix race condition in the probe	2017-12-18 09:37:06 +05:30