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dmaengine: mv_xor_v2: remove unnecessary write to DESQ_STOP register

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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>
This commit is contained in:
Hanna Hawa 2017-05-05 11:57:52 +02:00 committed by Vinod Koul
parent d793327fac
commit 35e34480c5
1 changed files with 0 additions and 3 deletions
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3
drivers/dma/mv_xor_v2.c
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@ -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);
}