Messages in this thread Patch in this message | | | From | Andy Shevchenko <> | Subject | [PATCH v4 3/4] dw_dmac: fill individual length of descriptor | Date | Fri, 25 Jan 2013 11:48:02 +0200 |
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It will be useful to have the length of the transfer in the descriptor. The cyclic transfer functions remained untouched.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Acked-by: Viresh Kumar <viresh.kumar@linaro.org> --- drivers/dma/dw_dmac.c | 3 +++ 1 file changed, 3 insertions(+)
diff --git a/drivers/dma/dw_dmac.c b/drivers/dma/dw_dmac.c index 7b5a088..3b788c8 100644 --- a/drivers/dma/dw_dmac.c +++ b/drivers/dma/dw_dmac.c @@ -759,6 +759,7 @@ dwc_prep_dma_memcpy(struct dma_chan *chan, dma_addr_t dest, dma_addr_t src, desc->lli.dar = dest + offset; desc->lli.ctllo = ctllo; desc->lli.ctlhi = xfer_count; + desc->len = xfer_count << src_width; if (!first) { first = desc; @@ -857,6 +858,7 @@ slave_sg_todev_fill_desc: } desc->lli.ctlhi = dlen >> mem_width; + desc->len = dlen; if (!first) { first = desc; @@ -915,6 +917,7 @@ slave_sg_fromdev_fill_desc: len = 0; } desc->lli.ctlhi = dlen >> reg_width; + desc->len = dlen; if (!first) { first = desc; -- 1.7.10.4
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