From d59f7037cec6b9388f658dfd4a56590a582467f0 Mon Sep 17 00:00:00 2001 From: Artur Rojek Date: Sun, 29 Aug 2021 21:58:05 +0200 Subject: [PATCH] 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 Acked-by: Paul Cercueil Link: https://lore.kernel.org/r/20210829195805.148964-1-contact@artur-rojek.eu Signed-off-by: Vinod Koul --- drivers/dma/dma-jz4780.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/dma/dma-jz4780.c b/drivers/dma/dma-jz4780.c index ebee94dbd6303..96701dedcac86 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. -- 2.30.2