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

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[ Upstream commit 372f8b3621 ]

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 ff14eadc27
commit 0d820e1ca8
1 changed files with 3 additions and 1 deletions
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4
drivers/dma/ti/k3-udma.c
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@ -4470,7 +4470,9 @@ 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;