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authorHanna Hawa <hannah@marvell.com>2017-05-05 12:57:52 +0300
committerVinod Koul <vinod.koul@intel.com>2017-05-14 15:54:45 +0300
commit35e34480c5177f96d822b8ea8e9e42b5fcca6ff6 (patch)
tree3e8680751f339d87ef3cbbea7403017ab910576e /drivers/dma/mv_xor_v2.c
parentd793327fac3a9292edfdcee0ab6c29e4fdd08d65 (diff)
downloadlinux-35e34480c5177f96d822b8ea8e9e42b5fcca6ff6.tar.xz
dmaengine: mv_xor_v2: remove unnecessary write to DESQ_STOP register
Remove unnecessary write to DESQ_STOP register, this register is used to enable or disable the XOR engine, and not to issue all pending descriptors in the queue. mv_xor_v2 driver already writes to this register and enable XOR engine in the mv_xor_v2_descq_init() function, called during initialization. Signed-off-by: Hanna Hawa <hannah@marvell.com> Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com> Signed-off-by: Vinod Koul <vinod.koul@intel.com>
Diffstat (limited to 'drivers/dma/mv_xor_v2.c')
-rw-r--r--drivers/dma/mv_xor_v2.c3
1 files changed, 0 insertions, 3 deletions
diff --git a/drivers/dma/mv_xor_v2.c b/drivers/dma/mv_xor_v2.c
index 5292ff2d5380..f386b88bb50c 100644
--- a/drivers/dma/mv_xor_v2.c
+++ b/drivers/dma/mv_xor_v2.c
@@ -535,9 +535,6 @@ static void mv_xor_v2_issue_pending(struct dma_chan *chan)
mv_xor_v2_add_desc_to_desq(xor_dev, xor_dev->npendings);
xor_dev->npendings = 0;
- /* Activate the channel */
- writel(0, xor_dev->dma_base + MV_XOR_V2_DMA_DESQ_STOP_OFF);
-
spin_unlock_bh(&xor_dev->lock);
}