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>

diff --git a/drivers/dma/ti/k3-udma.c b/drivers/dma/ti/k3-udma.c
index 87157cbae1b8e782b414fd768f330b878b5b016d..e9cc207626f3e8d24bd7f7d9ecfedaa0c207b652 100644 (file)
--- 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);