From: Amelie Delaunay <amelie.delaunay@st.com>
To: Vinod Koul <vkoul@kernel.org>,
Dan Williams <dan.j.williams@intel.com>,
Maxime Coquelin <mcoquelin.stm32@gmail.com>,
Alexandre Torgue <alexandre.torgue@st.com>
Cc: Amelie Delaunay <amelie.delaunay@st.com>,
linux-kernel@vger.kernel.org,
Pierre-Yves MORDRET <pierre-yves.mordret@st.com>,
dmaengine@vger.kernel.org,
linux-stm32@st-md-mailman.stormreply.com,
linux-arm-kernel@lists.infradead.org
Subject: [PATCH 6/8] dmaengine: stm32-dma: add copy_align constraint
Date: Wed, 29 Jan 2020 16:36:26 +0100 [thread overview]
Message-ID: <20200129153628.29329-7-amelie.delaunay@st.com> (raw)
In-Reply-To: <20200129153628.29329-1-amelie.delaunay@st.com>
This patch adds copy_align property in accordance with hardware
restriction.
Signed-off-by: Ludovic Barre <ludovic.barre@st.com>
Signed-off-by: Amelie Delaunay <amelie.delaunay@st.com>
---
drivers/dma/stm32-dma.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/drivers/dma/stm32-dma.c b/drivers/dma/stm32-dma.c
index b7e18cfcd439..01a2374ae03a 100644
--- a/drivers/dma/stm32-dma.c
+++ b/drivers/dma/stm32-dma.c
@@ -1345,6 +1345,7 @@ static int stm32_dma_probe(struct platform_device *pdev)
BIT(DMA_SLAVE_BUSWIDTH_4_BYTES);
dd->directions = BIT(DMA_DEV_TO_MEM) | BIT(DMA_MEM_TO_DEV);
dd->residue_granularity = DMA_RESIDUE_GRANULARITY_BURST;
+ dd->copy_align = DMAENGINE_ALIGN_32_BYTES;
dd->max_burst = STM32_DMA_MAX_BURST;
dd->descriptor_reuse = true;
dd->dev = &pdev->dev;
--
2.17.1
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next prev parent reply other threads:[~2020-01-29 15:37 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-01-29 15:36 [PATCH 0/8] STM32 DMA driver fixes and improvements Amelie Delaunay
2020-01-29 15:36 ` [PATCH 1/8] dmaengine: stm32-dma: add suspend/resume power management support Amelie Delaunay
2020-01-29 15:36 ` [PATCH 2/8] dmaengine: stm32-dma: use reset controller only at probe time Amelie Delaunay
2020-01-29 15:36 ` [PATCH 3/8] dmaengine: stm32-dma: driver defers probe for reset Amelie Delaunay
2020-01-29 15:36 ` [PATCH 4/8] dmaengine: stm32-dma: enable descriptor_reuse Amelie Delaunay
2020-01-29 15:36 ` [PATCH 5/8] dmaengine: stm32-dma: use dma_set_max_seg_size to set the sg limit Amelie Delaunay
2020-01-29 15:36 ` Amelie Delaunay [this message]
2020-01-29 15:36 ` [PATCH 7/8] dmaengine: stm32-dma: fix sleeping function called from invalid context Amelie Delaunay
2020-01-29 15:36 ` [PATCH 8/8] dmaengine: stm32-dma: use vchan_terminate_vdesc() in .terminate_all Amelie Delaunay
2020-02-25 5:45 ` [PATCH 0/8] STM32 DMA driver fixes and improvements Vinod Koul
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