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authorVignesh Raghavendra <vigneshr@ti.com>2021-01-12 19:44:03 +0530
committerVinod Koul <vkoul@kernel.org>2021-01-13 16:52:19 +0530
commitaecf9d38361090857aa58708e500ee79bed1e273 (patch)
tree3fdd09c861a2aa421d3e068fb2da6bede7d3f440 /drivers/dma
parent0a6d3038d914b51d6860f23ea2b508590e8340de (diff)
dmaengine: ti: k3-udma: Set rflow count for BCDMA split channels
BCDMA RX channels have one flow per channel, therefore set the rflow_cnt to rchan_cnt. Without this patch, request for BCDMA RX channel allocation fails as rflow_cnt is 0 thus fails to reserve a rflow for the channel. Fixes: 8844898028d4 ("dmaengine: ti: k3-udma: Add support for BCDMA channel TPL handling") Signed-off-by: Vignesh Raghavendra <vigneshr@ti.com> Acked-by: Peter Ujfalusi <peter.ujfalusi@gmail.com> Link: https://lore.kernel.org/r/20210112141403.30286-1-vigneshr@ti.com Signed-off-by: Vinod Koul <vkoul@kernel.org>
Diffstat (limited to 'drivers/dma')
-rw-r--r--drivers/dma/ti/k3-udma.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/dma/ti/k3-udma.c b/drivers/dma/ti/k3-udma.c
index 87157cbae1b8..e9cc207626f3 100644
--- a/drivers/dma/ti/k3-udma.c
+++ b/drivers/dma/ti/k3-udma.c
@@ -4305,6 +4305,7 @@ static int udma_get_mmrs(struct platform_device *pdev, struct udma_dev *ud)
ud->bchan_cnt = BCDMA_CAP2_BCHAN_CNT(cap2);
ud->tchan_cnt = BCDMA_CAP2_TCHAN_CNT(cap2);
ud->rchan_cnt = BCDMA_CAP2_RCHAN_CNT(cap2);
+ ud->rflow_cnt = ud->rchan_cnt;
break;
case DMA_TYPE_PKTDMA:
cap4 = udma_read(ud->mmrs[MMR_GCFG], 0x30);