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| author | Andrew Jackson <Andrew.Jackson@arm.com> | 2014-11-07 15:14:43 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2014-11-07 17:35:55 +0100 |
| commit | c64be9231e089350fa55c7e03adc79e341ab8e89 (patch) | |
| tree | 330b92fff2e19ea98a169881b64e5bd3f7fb6b64 /drivers/tty/serial/amba-pl011.c | |
| parent | serial: pl011: Avoid assumptions about buffer size when refilling TX DMA (diff) | |
| download | linux-c64be9231e089350fa55c7e03adc79e341ab8e89.tar.xz linux-c64be9231e089350fa55c7e03adc79e341ab8e89.zip | |
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>
Diffstat (limited to 'drivers/tty/serial/amba-pl011.c')
| -rw-r--r-- | drivers/tty/serial/amba-pl011.c | 1 |
1 files changed, 1 insertions, 0 deletions
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; } |