[PATCH 5/6] dmaengine: stm32-mdma: enable descriptor_reuse
From: Amelie Delaunay <hidden>
Date: 2020-01-27 08:54:23
Also in:
dmaengine, lkml
Subsystem:
dma generic offload engine subsystem, the rest · Maintainers:
Vinod Koul, Linus Torvalds
From: Pierre-Yves MORDRET <redacted> Enable descriptor reuse to allow client to resubmit already processed descriptors in order to save descriptor creation time. Signed-off-by: Pierre-Yves MORDRET <redacted> Signed-off-by: Amelie Delaunay <redacted> --- 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 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) |
--
2.17.1
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