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UPSTREAM: dmaengine: pl330: add max burst for dmaengine

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This patch add max burst capability for dmaengine and
limit burst capability to one for PL330_QUIRK_BROKEN_NO_FLUSHP

Change-Id: I378325508af1246177e327c6572611545c52e04e
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>
(cherry picked from git.kernel.org next/linux-next.git master
 commit 86a8ce7d41)
This commit is contained in:
Shawn Lin 2016-01-22 19:06:51 +08:00 committed by Caesar Wang
parent 943445cb2b
commit b5f04f877f
1 changed files with 3 additions and 0 deletions
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3
drivers/dma/pl330.c
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@ -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)
@ -2937,6 +2938,8 @@ 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) {