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dmaengine: ti: k3-udma: Fix BCHAN count with UHC and HC channels

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[ Upstream commit 372f8b3621294173f539b32976e41e6e12f5decf ]

Unlike other channel counts in CAPx registers, BCDMA BCHAN CNT doesn't
include UHC and HC BC channels. So include them explicitly to arrive at
total BC channel in the instance.

Fixes: 8844898028 ("dmaengine: ti: k3-udma: Add support for BCDMA channel TPL handling")
Signed-off-by: Vignesh Raghavendra <vigneshr@ti.com>
Signed-off-by: Jai Luthra <j-luthra@ti.com>
Tested-by: Jayesh Choudhary <j-choudhary@ti.com>
Link: https://lore.kernel.org/r/20240607-bcdma_chan_cnt-v2-1-bf1a55529d91@ti.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Vignesh Raghavendra
2024-06-07 23:41:03 +05:30
committed by Greg Kroah-Hartman
parent 8d8f9a477d
commit 1e7fe21fac
1 changed files with 3 additions and 1 deletions
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4
drivers/dma/ti/k3-udma.c
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@@ -4423,7 +4423,9 @@ static int udma_get_mmrs(struct platform_device *pdev, struct udma_dev *ud)
ud->rchan_cnt = UDMA_CAP2_RCHAN_CNT(cap2);
break;
case DMA_TYPE_BCDMA:
ud->bchan_cnt = BCDMA_CAP2_BCHAN_CNT(cap2);
ud->bchan_cnt = BCDMA_CAP2_BCHAN_CNT(cap2) +
BCDMA_CAP3_HBCHAN_CNT(cap3) +
BCDMA_CAP3_UBCHAN_CNT(cap3);
ud->tchan_cnt = BCDMA_CAP2_TCHAN_CNT(cap2);
ud->rchan_cnt = BCDMA_CAP2_RCHAN_CNT(cap2);
ud->rflow_cnt = ud->rchan_cnt;