dmaengine: at_hdmac: no need set ACK in new descriptor
Nicolas Ferre [Wed, 12 Jan 2011 14:39:07 +0000 (15:39 +0100)]
Following descriptor flow in at_hdmac driver, descriptor comming from
atc_desc_get() as already DMA_CTRL_ACK flag set. No need to set it again.

Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>

drivers/dma/at_hdmac.c

index 73a470b..c6ddd6f 100644 (file)
@@ -583,7 +583,6 @@ atc_prep_dma_memcpy(struct dma_chan *chan, dma_addr_t dest, dma_addr_t src,
                desc->lli.ctrlb = ctrlb;
 
                desc->txd.cookie = 0;
-               async_tx_ack(&desc->txd);
 
                if (!first) {
                        first = desc;