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authorWolfram Sang <wsa+renesas@sang-engineering.com>2018-09-14 17:43:28 +0200
committerVinod Koul <vkoul@kernel.org>2018-10-07 20:04:14 +0530
commit97d49c59e219acac576e16293a6b8cb99302f62f (patch)
tree3afecf6a7d7036c165f0e1dc6f787169824ce8ce /drivers/dma/sh/rcar-dmac.c
parentcf1b2c309b47636b197805f522ed9657fcc7102c (diff)
dmaengine: rcar-dmac: set scatter/gather max segment size
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>
Diffstat (limited to 'drivers/dma/sh/rcar-dmac.c')
-rw-r--r--drivers/dma/sh/rcar-dmac.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/dma/sh/rcar-dmac.c b/drivers/dma/sh/rcar-dmac.c
index 48ee35e2bce6..74fa2b1a6a86 100644
--- a/drivers/dma/sh/rcar-dmac.c
+++ b/drivers/dma/sh/rcar-dmac.c
@@ -198,6 +198,7 @@ struct rcar_dmac {
struct dma_device engine;
struct device *dev;
void __iomem *iomem;
+ struct device_dma_parameters parms;
unsigned int n_channels;
struct rcar_dmac_chan *channels;
@@ -1792,6 +1793,8 @@ static int rcar_dmac_probe(struct platform_device *pdev)
dmac->dev = &pdev->dev;
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));
ret = rcar_dmac_parse_of(&pdev->dev, dmac);