From mboxrd@z Thu Jan 1 00:00:00 1970 From: Pierre-Yves MORDRET Subject: [PATCH v3 7/7] dmaengine: stm32-mdma: enable descriptor_reuse Date: Fri, 28 Sep 2018 15:01:55 +0200 Message-ID: <1538139715-24406-8-git-send-email-pierre-yves.mordret@st.com> References: <1538139715-24406-1-git-send-email-pierre-yves.mordret@st.com> Mime-Version: 1.0 Content-Type: text/plain Return-path: In-Reply-To: <1538139715-24406-1-git-send-email-pierre-yves.mordret@st.com> Sender: linux-kernel-owner@vger.kernel.org To: Vinod Koul , Rob Herring , Mark Rutland , Alexandre Torgue , Maxime Coquelin , Dan Williams , devicetree@vger.kernel.org, dmaengine@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org Cc: Pierre-Yves MORDRET List-Id: devicetree@vger.kernel.org enable reuse to spare descriptors creation on critical UC. Signed-off-by: Pierre-Yves MORDRET --- Version history: v3: v2: 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