From: Viresh Kumar <viresh.kumar@st.com>
Date: Thu, 3 Mar 2011 10:17:20 +0000 (+0530)
Subject: dw_dmac: Mark all tx_descriptors with DMA_CRTL_ACK after xfer finish
X-Git-Tag: v2.6.39-rc1~203^2~12^2~8
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=e518076ef8cb56adb558ff56ad5bfa0cd9f3abd9;p=pandora-kernel.git

dw_dmac: Mark all tx_descriptors with DMA_CRTL_ACK after xfer finish

dwc_desc_get checks all descriptors for DMA_CTRL_ACK before allocating them for
transfers. And descriptors are not marked with DMA_CRTL_ACK after transfer
finishes. Thus descriptor once used is not usable again. This patch marks
descriptors with DMA_CRTL_ACK after dma xfer finishes

Signed-off-by: Viresh Kumar <viresh.kumar@st.com>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
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