diff options
| author | Shawn Lin <shawn.lin@rock-chips.com> | 2016-01-22 19:06:51 +0800 |
|---|---|---|
| committer | Vinod Koul <vinod.koul@intel.com> | 2016-02-09 09:01:41 +0530 |
| commit | 86a8ce7d4103f6680236af6916abf38e12477df8 (patch) | |
| tree | d382626964f8478545f87aa8a586a0ce422a3259 | |
| parent | 6d5bbed30f89acd2ae0d23b3fff5b13b307525d9 (diff) | |
| download | linux-86a8ce7d4103f6680236af6916abf38e12477df8.tar.bz2 | |
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 <shawn.lin@rock-chips.com>
Signed-off-by: Caesar Wang <wxt@rock-chips.com>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
| -rw-r--r-- | drivers/dma/pl330.c | 3 |
1 files changed, 3 insertions, 0 deletions
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) { |