From 7022640c10f027e6e2cff00012b3740a78f8b9bc Mon Sep 17 00:00:00 2001
From: Udit Kumar <u-kumar1@ti.com>
Date: Wed, 21 Feb 2024 19:53:44 +0530
Subject: [PATCH] dma: ti: k3-udma: Fix ring_idx to pair k3 nav rings
ring_idx was not correctly assigned in case of tflow_id is zero.
Which leads to wrong pairing of DMA for drivers like OSPI.
Fixes: 4312a1dfca26 ("dma: ti: k3-udma: Use ring_idx to pair k3 nav rings")
Reviewed-by: Jai Luthra <j-luthra@ti.com>
Signed-off-by: Udit Kumar <u-kumar1@ti.com>
---
drivers/dma/ti/k3-udma.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/dma/ti/k3-udma.c b/drivers/dma/ti/k3-udma.c
index ed0a9bf487..ef3074aa13 100644
--- a/drivers/dma/ti/k3-udma.c
+++ b/drivers/dma/ti/k3-udma.c
@@ -884,10 +884,10 @@ static int udma_alloc_tx_resources(struct udma_chan *uc)
return ret;
tchan = uc->tchan;
- if (tchan->tflow_id >= 0)
+ if (tchan->tflow_id > 0)
ring_idx = tchan->tflow_id;
else
- ring_idx = ud->bchan_cnt + tchan->id;
+ ring_idx = tchan->id;
ret = k3_nav_ringacc_request_rings_pair(ud->ringacc, ring_idx, -1,
&uc->tchan->t_ring,
--
2.39.5