From df473a988e1dd241f15be1ce17bb90b36095bbb2 Mon Sep 17 00:00:00 2001 From: MD Danish Anwar Date: Thu, 15 Feb 2024 15:19:46 +0530 Subject: dma: ti: k3-udma: Use ring_idx to pair k3 nav rings Use ring_idx to pair rings. ring_idx will be same as tx flow_id for all non-negative flow_ids. For negative flow_ids, ring_idx will be tchan->id added with bchan_cnt. Signed-off-by: MD Danish Anwar --- drivers/dma/ti/k3-udma.c | 11 +++++++++-- 1 file changed, 9 insertions(+), 2 deletions(-) diff --git a/drivers/dma/ti/k3-udma.c b/drivers/dma/ti/k3-udma.c index a018f70c54..bdaadc9e78 100644 --- a/drivers/dma/ti/k3-udma.c +++ b/drivers/dma/ti/k3-udma.c @@ -875,13 +875,20 @@ static int udma_alloc_tx_resources(struct udma_chan *uc) { struct k3_nav_ring_cfg ring_cfg; struct udma_dev *ud = uc->ud; - int ret; + struct udma_tchan *tchan; + int ring_idx, ret; ret = udma_get_tchan(uc); if (ret) return ret; - ret = k3_nav_ringacc_request_rings_pair(ud->ringacc, uc->tchan->id, -1, + tchan = uc->tchan; + if (tchan->tflow_id >= 0) + ring_idx = tchan->tflow_id; + else + ring_idx = ud->bchan_cnt + tchan->id; + + ret = k3_nav_ringacc_request_rings_pair(ud->ringacc, ring_idx, -1, &uc->tchan->t_ring, &uc->tchan->tc_ring); if (ret) { -- cgit v1.2.3