diff options
| author | Artur Rojek <contact@artur-rojek.eu> | 2021-08-29 21:58:05 +0200 |
|---|---|---|
| committer | Vinod Koul <vkoul@kernel.org> | 2021-10-18 12:07:27 +0530 |
| commit | d59f7037cec6b9388f658dfd4a56590a582467f0 (patch) | |
| tree | ef24c9c6056bb424f58a895380adab37bb065bf8 /drivers/dma/dma-jz4780.c | |
| parent | 161596fd776a54df922158175ed844804a861c37 (diff) | |
dmaengine: jz4780: Set max number of SGs per burst
Total amount of SG list entries executed in a single burst is limited by
the number of available DMA descriptors.
This information is useful for device drivers utilizing this DMA engine.
Signed-off-by: Artur Rojek <contact@artur-rojek.eu>
Acked-by: Paul Cercueil <paul@crapouillou.net>
Link: https://lore.kernel.org/r/20210829195805.148964-1-contact@artur-rojek.eu
Signed-off-by: Vinod Koul <vkoul@kernel.org>
Diffstat (limited to 'drivers/dma/dma-jz4780.c')
| -rw-r--r-- | drivers/dma/dma-jz4780.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/dma/dma-jz4780.c b/drivers/dma/dma-jz4780.c index ebee94dbd630..96701dedcac8 100644 --- a/drivers/dma/dma-jz4780.c +++ b/drivers/dma/dma-jz4780.c @@ -915,6 +915,7 @@ static int jz4780_dma_probe(struct platform_device *pdev) dd->dst_addr_widths = JZ_DMA_BUSWIDTHS; dd->directions = BIT(DMA_DEV_TO_MEM) | BIT(DMA_MEM_TO_DEV); dd->residue_granularity = DMA_RESIDUE_GRANULARITY_BURST; + dd->max_sg_burst = JZ_DMA_MAX_DESC; /* * Enable DMA controller, mark all channels as not programmable. |