linux-kernel - [PATCH v6 3/3] dmaengine: imx-sdma: fix consistent dma test failures

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Date:   Mon, 28 Jan 2019 09:03:23 -0700
From:   "Angus Ainslie (Purism)" <angus@...ea.ca>
To:     angus@...ea.ca
Cc:     angus.ainslie@...i.sm, Vinod Koul <vkoul@...nel.org>,
        dmaengine@...r.kernel.org, NXP Linux Team <linux-imx@....com>,
        Pengutronix Kernel Team <kernel@...gutronix.de>,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
        Lucas Stach <l.stach@...gutronix.de>,
        Daniel Baluta <daniel.baluta@...il.com>
Subject: [PATCH v6 3/3] dmaengine: imx-sdma: fix consistent dma test failures

Without the copy being aligned sdma1 fails ~10% of the time

Signed-off-by: Angus Ainslie (Purism) <angus@...ea.ca>
---
 drivers/dma/imx-sdma.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/dma/imx-sdma.c b/drivers/dma/imx-sdma.c
index d2fae53be689..e7d4d8390813 100644
--- a/drivers/dma/imx-sdma.c
+++ b/drivers/dma/imx-sdma.c
@@ -2114,6 +2114,7 @@ static int sdma_probe(struct platform_device *pdev)
 	sdma->dma_device.device_prep_dma_memcpy = sdma_prep_memcpy;
 	sdma->dma_device.device_issue_pending = sdma_issue_pending;
 	sdma->dma_device.dev->dma_parms = &sdma->dma_parms;
+	sdma->dma_device.copy_align = 2;
 	dma_set_max_seg_size(sdma->dma_device.dev, SDMA_BD_MAX_CNT);
 
 	platform_set_drvdata(pdev, sdma);
-- 
2.17.1