On 2016-09-20 16:08:57 [+0300], Peter Ujfalusi wrote: > and this fixes the annoying lag on the serial console as well I have since the > DMA was enabled for the UART as typing one character would be not enough to > trigger the DMA, resulting wait for the timeout and flushing the data out from > the FIFO. > > I really see no point of having DMA for the serial console... not with the > current setup. Probably for TX, but for sure not for the RX. > > So I give my: > Tested-by/Reviewed-by/Recommended-by to this change. > > I know that this might affect performance as we constantly run the DMA from > UART to memory, but it makes the serial console usable. I would have to dig out my beagle bone and check how it works. However I remember that EDMA worked before I had to disable it. I had no lags there on the console. I remember the same thing was true on DRA7 where sdma was used. Sebastian -- To unsubscribe from this list: send the line "unsubscribe linux-serial" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
