Commit c64be923 authored Nov 07, 2014 by Andrew Jackson Committed by Greg Kroah-Hartman Nov 07, 2014

serial: pl011: Set length of DMA transfer



The DMA engines on some systems require that the dma_length is set
when using scatter gather lists.

Signed-off-by: Andrew Jackson <Andrew.Jackson@arm.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

parent e2a545a6

drivers/tty/serial/amba-pl011.c

+1 −0

Original line number	Diff line number	Diff line
		@@ -246,6 +246,7 @@ static int pl011_sgbuf_init(struct dma_chan chan, struct pl011_sgbuf sg,
		sg_set_page(&sg->sg, phys_to_page(dma_addr),
		PL011_DMA_BUFFER_SIZE, offset_in_page(dma_addr));
		sg_dma_address(&sg->sg) = dma_addr;
		sg_dma_len(&sg->sg) = PL011_DMA_BUFFER_SIZE;

		return 0;
		}