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authorPierre-Yves MORDRET <pierre-yves.mordret@st.com>2020-01-27 09:53:33 +0100
committerVinod Koul <vkoul@kernel.org>2020-02-24 22:20:01 +0530
commit542fbc463aabdd93c2d3db7f604903f357a0ebf8 (patch)
treec00350d44711153182d9b302637891c37f99ceb0 /drivers/dma
parent56cf8ddaa3115db5543d2a49b669bf4010eaff19 (diff)
dmaengine: stm32-mdma: enable descriptor_reuse
Enable descriptor reuse to allow client to resubmit already processed descriptors in order to save descriptor creation time. Signed-off-by: Pierre-Yves MORDRET <pierre-yves.mordret@st.com> Signed-off-by: Amelie Delaunay <amelie.delaunay@st.com> Link: https://lore.kernel.org/r/20200127085334.13163-6-amelie.delaunay@st.com Signed-off-by: Vinod Koul <vkoul@kernel.org>
Diffstat (limited to 'drivers/dma')
-rw-r--r--drivers/dma/stm32-mdma.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/dma/stm32-mdma.c b/drivers/dma/stm32-mdma.c
index 2dbd1f38a6f5..f2043f47ae9e 100644
--- a/drivers/dma/stm32-mdma.c
+++ b/drivers/dma/stm32-mdma.c
@@ -1618,6 +1618,8 @@ 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) |