d8bae21a48
Take advantage of dmaengine_desc_get_callback_invoke which allows either a callback or callback_result to be specified. This can be useful when using the AXI DMA transfer unknown quantities of data where the residue contained in the result can be used to calculate the number of bytes transferred. Signed-off-by: Nicholas Graumann <nick.graumann@gmail.com> Signed-off-by: Radhey Shyam Pandey <radhey.shyam.pandey@xilinx.com> Link: https://lore.kernel.org/r/1571150904-3988-6-git-send-email-radhey.shyam.pandey@xilinx.com Signed-off-by: Vinod Koul <vkoul@kernel.org>