Commit 35e34480 authored May 05, 2017 by Hanna Hawa Committed by Vinod Koul May 14, 2017

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>

parent d793327f

drivers/dma/mv_xor_v2.c

+0 −3

Original line number	Diff line number	Diff line
		@@ -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);
		}

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