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dma: ti: k3-udma: Use ring_idx to pair k3 nav rings

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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.

Link: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/tree/drivers/dma/ti/k3-udma.c?h=v6.8-rc2#n1686
Signed-off-by: MD Danish Anwar <danishanwar@ti.com>
Reviewed-by: Ravi Gunasekaran <r-gunasekaran@ti.com>
This commit is contained in:
MD Danish Anwar 2024-01-30 11:48:04 +05:30 committed by Tom Rini
parent 798ad3e6b2
commit 4312a1dfca
1 changed files with 9 additions and 2 deletions
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11
drivers/dma/ti/k3-udma.c
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@ -876,13 +876,20 @@ static int udma_alloc_tx_resources(struct udma_chan *uc)
{ {
struct k3_nav_ring_cfg ring_cfg; struct k3_nav_ring_cfg ring_cfg;
struct udma_dev *ud = uc->ud; struct udma_dev *ud = uc->ud;
int ret; struct udma_tchan *tchan;
int ring_idx, ret;
ret = udma_get_tchan(uc); ret = udma_get_tchan(uc);
if (ret) if (ret)
return 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->t_ring,
&uc->tchan->tc_ring); &uc->tchan->tc_ring);
if (ret) { if (ret) {