From c64be9231e089350fa55c7e03adc79e341ab8e89 Mon Sep 17 00:00:00 2001 From: Andrew Jackson Date: Fri, 7 Nov 2014 14:14:43 +0000 Subject: [PATCH] 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 Signed-off-by: Greg Kroah-Hartman --- drivers/tty/serial/amba-pl011.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/tty/serial/amba-pl011.c b/drivers/tty/serial/amba-pl011.c index 6153a42d68db..55dc00dd0e5e 100644 --- a/drivers/tty/serial/amba-pl011.c +++ b/drivers/tty/serial/amba-pl011.c @@ -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; } -- 2.34.1