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: <dmaengine@vger.kernel.org>, <linux-stm32@st-md-mailman.stormreply.com>, <linux-arm-kernel@lists.infradead.org>, <linux-kernel@vger.kernel.org>, Amelie Delaunay <amelie.delaunay@st.com>, Pierre-Yves MORDRET <pierre-yves.mordret@st.com> Subject: [PATCH 5/8] dmaengine: stm32-dma: use dma_set_max_seg_size to set the sg limit Date: Wed, 29 Jan 2020 16:36:25 +0100 [thread overview] Message-ID: <20200129153628.29329-6-amelie.delaunay@st.com> (raw) In-Reply-To: <20200129153628.29329-1-amelie.delaunay@st.com> This patch adds dma_set_max_seg_size to define sg dma constraint. This constraint may be taken into account by client to scatter/gather its buffer. Signed-off-by: Ludovic Barre <ludovic.barre@st.com> Signed-off-by: Amelie Delaunay <amelie.delaunay@st.com> --- drivers/dma/stm32-dma.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/dma/stm32-dma.c b/drivers/dma/stm32-dma.c index 25f7281932bd..b7e18cfcd439 100644 --- a/drivers/dma/stm32-dma.c +++ b/drivers/dma/stm32-dma.c @@ -1323,6 +1323,8 @@ static int stm32_dma_probe(struct platform_device *pdev) reset_control_deassert(rst); } + dma_set_max_seg_size(&pdev->dev, STM32_DMA_ALIGNED_MAX_DATA_ITEMS); + dma_cap_set(DMA_SLAVE, dd->cap_mask); dma_cap_set(DMA_PRIVATE, dd->cap_mask); dma_cap_set(DMA_CYCLIC, dd->cap_mask); -- 2.17.1
WARNING: multiple messages have this Message-ID (diff)
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 5/8] dmaengine: stm32-dma: use dma_set_max_seg_size to set the sg limit Date: Wed, 29 Jan 2020 16:36:25 +0100 [thread overview] Message-ID: <20200129153628.29329-6-amelie.delaunay@st.com> (raw) In-Reply-To: <20200129153628.29329-1-amelie.delaunay@st.com> This patch adds dma_set_max_seg_size to define sg dma constraint. This constraint may be taken into account by client to scatter/gather its buffer. Signed-off-by: Ludovic Barre <ludovic.barre@st.com> Signed-off-by: Amelie Delaunay <amelie.delaunay@st.com> --- drivers/dma/stm32-dma.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/dma/stm32-dma.c b/drivers/dma/stm32-dma.c index 25f7281932bd..b7e18cfcd439 100644 --- a/drivers/dma/stm32-dma.c +++ b/drivers/dma/stm32-dma.c @@ -1323,6 +1323,8 @@ static int stm32_dma_probe(struct platform_device *pdev) reset_control_deassert(rst); } + dma_set_max_seg_size(&pdev->dev, STM32_DMA_ALIGNED_MAX_DATA_ITEMS); + dma_cap_set(DMA_SLAVE, dd->cap_mask); dma_cap_set(DMA_PRIVATE, dd->cap_mask); dma_cap_set(DMA_CYCLIC, dd->cap_mask); -- 2.17.1 _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
next prev parent reply other threads:[~2020-01-29 15:37 UTC|newest] Thread overview: 20+ 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 ` 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 ` 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 ` 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 ` Amelie Delaunay 2020-01-29 15:36 ` [PATCH 4/8] dmaengine: stm32-dma: enable descriptor_reuse Amelie Delaunay 2020-01-29 15:36 ` Amelie Delaunay 2020-01-29 15:36 ` Amelie Delaunay [this message] 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 ` [PATCH 6/8] dmaengine: stm32-dma: add copy_align constraint Amelie Delaunay 2020-01-29 15:36 ` Amelie Delaunay 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 ` Amelie Delaunay 2020-01-29 15:36 ` [PATCH 8/8] dmaengine: stm32-dma: use vchan_terminate_vdesc() in .terminate_all Amelie Delaunay 2020-01-29 15:36 ` Amelie Delaunay 2020-02-25 5:45 ` [PATCH 0/8] STM32 DMA driver fixes and improvements Vinod Koul 2020-02-25 5:45 ` Vinod Koul
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