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Commit fef30612 authored by Wolfram Sang's avatar Wolfram Sang Committed by Greg Kroah-Hartman
Browse files

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



[ Upstream commit 97d49c59e219acac576e16293a6b8cb99302f62f ]

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: default avatarWolfram Sang <wsa+renesas@sang-engineering.com>
Signed-off-by: default avatarVinod Koul <vkoul@kernel.org>
Signed-off-by: default avatarSasha Levin <sashal@kernel.org>
parent af23231a

drivers/dma/sh/rcar-dmac.c

+3 −0
Original line number Original line Diff line number Diff line
@@ -198,6 +198,7 @@ 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;
@@ -1814,6 +1815,8 @@ 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);