5.15-stable review patch. If anyone has any objections, please let me know.
------------------
From: Vignesh Raghavendra <vigneshr@xxxxxx>
[ 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: 8844898028d4 ("dmaengine: ti: k3-udma: Add support for BCDMA channel TPL handling")
Signed-off-by: Vignesh Raghavendra <vigneshr@xxxxxx>
Signed-off-by: Jai Luthra <j-luthra@xxxxxx>
Tested-by: Jayesh Choudhary <j-choudhary@xxxxxx>
Link: https://lore.kernel.org/r/20240607-bcdma_chan_cnt-v2-1-bf1a55529d91@xxxxxx
Signed-off-by: Vinod Koul <vkoul@xxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
drivers/dma/ti/k3-udma.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/drivers/dma/ti/k3-udma.c b/drivers/dma/ti/k3-udma.c
index 698fb898847c1..9db45c4eaaf24 100644
--- a/drivers/dma/ti/k3-udma.c
+++ b/drivers/dma/ti/k3-udma.c
@@ -4415,7 +4415,9 @@ 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;
--
2.43.0
