From: Pierre-Yves MORDRET <pierre-yves.mordret@st.com>
To: Vinod Koul <vkoul@kernel.org>, Rob Herring <robh+dt@kernel.org>,
Mark Rutland <mark.rutland@arm.com>,
Alexandre Torgue <alexandre.torgue@st.com>,
Maxime Coquelin <mcoquelin.stm32@gmail.com>,
Dan Williams <dan.j.williams@intel.com>,
<devicetree@vger.kernel.org>, <dmaengine@vger.kernel.org>,
<linux-arm-kernel@lists.infradead.org>,
<linux-kernel@vger.kernel.org>
Cc: Pierre-Yves MORDRET <pierre-yves.mordret@st.com>
Subject: [PATCH v2 7/7] dmaengine: stm32-mdma: enable descriptor_reuse
Date: Fri, 28 Sep 2018 10:36:34 +0200 [thread overview]
Message-ID: <1538123794-17085-8-git-send-email-pierre-yves.mordret@st.com> (raw)
In-Reply-To: <1538123794-17085-1-git-send-email-pierre-yves.mordret@st.com>
enable reuse to spare descriptors creation on critical UC.
Signed-off-by: Pierre-Yves MORDRET <pierre-yves.mordret@st.com>
---
Version history:
v1:
* Initial
---
---
drivers/dma/stm32-mdma.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/drivers/dma/stm32-mdma.c b/drivers/dma/stm32-mdma.c
index 6b6e63b..80a17dd 100644
--- a/drivers/dma/stm32-mdma.c
+++ b/drivers/dma/stm32-mdma.c
@@ -1715,6 +1715,8 @@ static int stm32_mdma_probe(struct platform_device *pdev)
dd->device_resume = stm32_mdma_resume;
dd->device_terminate_all = stm32_mdma_terminate_all;
dd->device_synchronize = stm32_mdma_synchronize;
+ dd->descriptor_reuse = true;
+
dd->src_addr_widths = BIT(DMA_SLAVE_BUSWIDTH_1_BYTE) |
BIT(DMA_SLAVE_BUSWIDTH_2_BYTES) |
BIT(DMA_SLAVE_BUSWIDTH_4_BYTES) |
--
2.7.4
next prev parent reply other threads:[~2018-09-28 8:37 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-09-28 8:36 [PATCH v2 0/7] Add-DMA-MDMA-chaining-support Pierre-Yves MORDRET
2018-09-28 8:36 ` [PATCH v2 1/7] dt-bindings: stm32-dma: Add DMA/MDMA chaining support bindings Pierre-Yves MORDRET
2018-09-28 8:36 ` [PATCH v2 2/7] dt-bindings: stm32-dmamux: Add one cell to support DMA/MDMA chain Pierre-Yves MORDRET
2018-09-28 8:36 ` [PATCH v2 3/7] dt-bindings: stm32-mdma: Add DMA/MDMA chaining support bindings Pierre-Yves MORDRET
2018-09-28 8:36 ` [PATCH v2 4/7] dmaengine: stm32-dma: Add DMA/MDMA chaining support Pierre-Yves MORDRET
2018-09-28 12:36 ` kbuild test robot
2018-09-28 8:36 ` [PATCH v2 5/7] dmaengine: stm32-mdma: " Pierre-Yves MORDRET
2018-09-28 8:36 ` [PATCH v2 6/7] dmaengine: stm32-dma: enable descriptor_reuse Pierre-Yves MORDRET
2018-09-28 8:36 ` Pierre-Yves MORDRET [this message]
2018-09-28 14:30 ` [PATCH v2 0/7] Add-DMA-MDMA-chaining-support Pierre Yves MORDRET
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