[5/6] dmaengine: stm32-mdma: enable descriptor_reuse
diff mbox series

Message ID 20200127085334.13163-6-amelie.delaunay@st.com
State Accepted
Headers show
Series
  • STM32 MDMA driver fixes and improvements
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Commit Message

Amelie DELAUNAY Jan. 27, 2020, 8:53 a.m. UTC
From: Pierre-Yves MORDRET <pierre-yves.mordret@st.com>

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>
---
 drivers/dma/stm32-mdma.c | 2 ++
 1 file changed, 2 insertions(+)

Patch
diff mbox series

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) |