| From 27fc33487d605177cd8530d20305eef08d9f94aa Mon Sep 17 00:00:00 2001 |
| From: Sasha Levin <sashal@kernel.org> |
| Date: Fri, 14 Sep 2018 17:43:28 +0200 |
| Subject: dmaengine: rcar-dmac: set scatter/gather max segment size |
| |
| From: Wolfram Sang <wsa+renesas@sang-engineering.com> |
| |
| [ 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: Wolfram Sang <wsa+renesas@sang-engineering.com> |
| Signed-off-by: Vinod Koul <vkoul@kernel.org> |
| Signed-off-by: Sasha Levin <sashal@kernel.org> |
| --- |
| drivers/dma/sh/rcar-dmac.c | 3 +++ |
| 1 file changed, 3 insertions(+) |
| |
| diff --git a/drivers/dma/sh/rcar-dmac.c b/drivers/dma/sh/rcar-dmac.c |
| index 19c7433e83097..f7ca57125ac7c 100644 |
| --- a/drivers/dma/sh/rcar-dmac.c |
| +++ b/drivers/dma/sh/rcar-dmac.c |
| @@ -200,6 +200,7 @@ 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; |
| @@ -1764,6 +1765,8 @@ 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); |
| -- |
| 2.20.1 |
| |
