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 shawn.lin@rock-chips.com
---
Changes in v6: - remove expose quirks and add max_burst for dmaengine
Changes in v5: None Changes in v4: None Changes in v3: None Changes in v2: None Changes in v1: None
drivers/dma/pl330.c | 3 +++ 1 file changed, 3 insertions(+)
diff --git a/drivers/dma/pl330.c b/drivers/dma/pl330.c index 008408d..1b0453b 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) {