From: Sasha Levin <sashal@kernel.org>
To: linux-kernel@vger.kernel.org, stable@vger.kernel.org
Cc: Wolfram Sang <wsa+renesas@sang-engineering.com>,
Vinod Koul <vkoul@kernel.org>, Sasha Levin <sashal@kernel.org>,
dmaengine@vger.kernel.org
Subject: [PATCH AUTOSEL 4.19 129/209] dmaengine: rcar-dmac: set scatter/gather max segment size
Date: Tue, 12 Nov 2019 20:49:05 -0500 [thread overview]
Message-ID: <20191113015025.9685-129-sashal@kernel.org> (raw)
In-Reply-To: <20191113015025.9685-1-sashal@kernel.org>
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 041ce864097e4..80ff95f75199f 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;
@@ -1814,6 +1815,8 @@ 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
prev parent reply other threads:[~2019-11-13 2:21 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <20191113015025.9685-1-sashal@kernel.org>
2019-11-13 1:47 ` [PATCH AUTOSEL 4.19 046/209] dmaengine: timb_dma: Use proper enum in td_prep_slave_sg Sasha Levin
2019-11-13 1:48 ` [PATCH AUTOSEL 4.19 112/209] dmaengine: ioat: fix prototype of ioat_enumerate_channels Sasha Levin
2019-11-13 1:49 ` Sasha Levin [this message]
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