Hi, Changes since v1: - Cleanup patch for the array register handling - typo fixed in patch2 commit message The code around the array register access was pretty confusing for the first look, so clean them up first then use the cleaner way in the polled handling. When a DMA client driver decides that it is not providing callback for completion of a transfer (and/or does not set the DMA_PREP_INTERRUPT) but it will poll the status of the transfer (in case of short memcpy for example) we will not get interrupt for the completion of the transfer and will not mark the transaction as done. Check the event registers (ER and EER) and if the channel is inactive then return wioth DMA_COMPLETE to let the client know that the transfer is completed. Regards, Peter --- Peter Ujfalusi (2): dmaengine: ti: edma: Clean up the 2x32bit array register accesses dmaengine: ti: edma: Enable support for polled (memcpy) completion drivers/dma/ti/edma.c | 129 ++++++++++++++++++++++++++---------------- 1 file changed, 81 insertions(+), 48 deletions(-) -- Peter Texas Instruments Finland Oy, Porkkalankatu 22, 00180 Helsinki. Y-tunnus/Business ID: 0615521-4. Kotipaikka/Domicile: Helsinki
