OpenCloudOS-Kernel/drivers/dma/xilinx
Laurent Pinchart 4fbf41ce57 dmaengine: xilinx: dpdma: Print debug message when losing vsync race
The hardware retrigger is inherently racy with the vsync interrupt. This
isn't an issue as the hardware provides a way to detect a race loss and
handle it correctly. When debugging issues related to this, it's useful
to get a notification of the race loss. Add a debug message to do so.

Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Tested-by: Jianqiang Chen <jianqiang.chen@xilinx.com>
Reviewed-by: Jianqiang Chen <jianqiang.chen@xilinx.com>
Link: https://lore.kernel.org/r/20210520152420.23986-4-laurent.pinchart@ideasonboard.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
2021-05-31 09:37:39 +05:30
..
Makefile dmaengine: xilinx: dpdma: Add the Xilinx DisplayPort DMA engine driver 2020-07-17 11:37:59 +05:30
xilinx_dma.c dmaengine: xilinx: Introduce synchronize() callback 2021-03-16 16:15:32 +05:30
xilinx_dpdma.c dmaengine: xilinx: dpdma: Print debug message when losing vsync race 2021-05-31 09:37:39 +05:30
zynqmp_dma.c dmaengine: zynqmp_dma: fix kernel-doc style for tasklet 2020-10-08 15:18:46 +05:30