[PATCH v3 7/7] dmaengine: stm32-mdma: enable descriptor_reuse
From: Pierre-Yves MORDRET <hidden>
Date: 2018-09-28 13:03:16
Also in:
dmaengine, linux-devicetree, lkml
Subsystem:
dma generic offload engine subsystem, the rest · Maintainers:
Vinod Koul, Linus Torvalds
enable reuse to spare descriptors creation on critical UC.
Signed-off-by: Pierre-Yves MORDRET <redacted>
---
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