On Thu, May 10, 2018 at 08:41:13AM +0200, Marek Szyprowski wrote: > The best granularity of residue that DMA engine can report is in the BURST > units, so the serial driver must use MAXBURST = 1 and DMA_SLAVE_BUSWIDTH_1_BYTE > if it relies on exact number of bytes transferred by DMA engine. > > Fixes: 62c37eedb74c ("serial: samsung: add dma reqest/release functions") > Signed-off-by: Marek Szyprowski <m.szyprowski@xxxxxxxxxxx> > --- > drivers/tty/serial/samsung.c | 7 ++----- > 1 file changed, 2 insertions(+), 5 deletions(-) > Acked-by: Krzysztof Kozlowski <krzk@xxxxxxxxxx> Best regards, Krzysztof -- 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