From: Nicolas Ferre <nicolas.ferre@atmel.com>
Date: Wed, 12 Jan 2011 14:39:07 +0000 (+0100)
Subject: dmaengine: at_hdmac: no need set ACK in new descriptor
X-Git-Tag: v2.6.38-rc1~25^2~7
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=58344f25cf5f3453bfcf4b845ea9ec71153e45c3;p=platform%2Fkernel%2Flinux-exynos.git

dmaengine: at_hdmac: no need set ACK in new descriptor

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>
---

diff --git a/drivers/dma/at_hdmac.c b/drivers/dma/at_hdmac.c
index 73a470b..c6ddd6f 100644
--- a/drivers/dma/at_hdmac.c
+++ b/drivers/dma/at_hdmac.c
@@ -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;