From 86a8ce7d4103f6680236af6916abf38e12477df8 Mon Sep 17 00:00:00 2001 From: Shawn Lin Date: Fri, 22 Jan 2016 19:06:51 +0800 Subject: dmaengine: pl330: add max burst for dmaengine This patch add max burst capability for dmaengine and limit burst capability to one for PL330_QUIRK_BROKEN_NO_FLUSHP Signed-off-by: Shawn Lin Signed-off-by: Caesar Wang Signed-off-by: Vinod Koul --- drivers/dma/pl330.c | 3 +++ 1 file changed, 3 insertions(+) (limited to 'drivers/dma/pl330.c') diff --git a/drivers/dma/pl330.c b/drivers/dma/pl330.c index 008408db6ae0..1b0453b9e32d 100644 --- a/drivers/dma/pl330.c +++ b/drivers/dma/pl330.c @@ -33,6 +33,7 @@ #define PL330_MAX_CHAN 8 #define PL330_MAX_IRQS 32 #define PL330_MAX_PERI 32 +#define PL330_MAX_BURST 16 #define PL330_QUIRK_BROKEN_NO_FLUSHP BIT(0) @@ -2938,6 +2939,8 @@ pl330_probe(struct amba_device *adev, const struct amba_id *id) pd->dst_addr_widths = PL330_DMA_BUSWIDTHS; pd->directions = BIT(DMA_DEV_TO_MEM) | BIT(DMA_MEM_TO_DEV); pd->residue_granularity = DMA_RESIDUE_GRANULARITY_SEGMENT; + pd->max_burst = ((pl330->quirks & PL330_QUIRK_BROKEN_NO_FLUSHP) ? + 1 : PL330_MAX_BURST); ret = dma_async_device_register(pd); if (ret) { -- cgit v1.2.3-59-g8ed1b