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dmaengine: rcar-dmac: set scatter/gather max segment size

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[ Upstream commit 97d49c59e2 ]

Fix warning when running with CONFIG_DMA_API_DEBUG_SG=y by allocating a
device_dma_parameters structure and filling in the max segment size.

Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Signed-off-by: Vinod Koul <vkoul@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Wolfram Sang
2018-09-14 17:43:28 +02:00
committed by Greg Kroah-Hartman
parent 4251e64c22
commit 348d69f0d5
1 changed files with 3 additions and 0 deletions
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3
drivers/dma/sh/rcar-dmac.c
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@ -200,6 +200,7 @@ struct rcar_dmac {
struct dma_device engine; struct dma_device engine;
struct device *dev; struct device *dev;
void __iomem *iomem; void __iomem *iomem;
struct device_dma_parameters parms;
unsigned int n_channels; unsigned int n_channels;
struct rcar_dmac_chan *channels; struct rcar_dmac_chan *channels;
@ -1764,6 +1765,8 @@ static int rcar_dmac_probe(struct platform_device *pdev)
dmac->dev = &pdev->dev; dmac->dev = &pdev->dev;
platform_set_drvdata(pdev, dmac); platform_set_drvdata(pdev, dmac);
dmac->dev->dma_parms = &dmac->parms;
dma_set_max_seg_size(dmac->dev, RCAR_DMATCR_MASK);
dma_set_mask_and_coherent(dmac->dev, DMA_BIT_MASK(40)); dma_set_mask_and_coherent(dmac->dev, DMA_BIT_MASK(40));
ret = rcar_dmac_parse_of(&pdev->dev, dmac); ret = rcar_dmac_parse_of(&pdev->dev, dmac);