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dma: ti: k3-udma: Fix BCDMA probe by adding check for MMR_RFLOW

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RFLOW config related MMR does not exist incase of BCDMA.
Add check to bypass the RFLOW MMR extraction.
Without this, the probe sequence fails checking for
the MMR_RFLOW region, which is valid only for packet based
DMA and obselete for BCDMA.

Fixes: 5abb694d60 ("dma: ti: k3-udma: Add support for native configuration of chan/flow")
Signed-off-by: Prasanth Babu Mantena <p-mantena@ti.com>
Tested-by: Jonathan Humphreys <j-humphreys@ti.com>
This commit is contained in:
Prasanth Babu Mantena 2024-12-18 18:30:45 +05:30 • committed by Tom Rini
parent 4be4046075
commit e7713a7882
1 changed files with 2 additions and 0 deletions
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2
drivers/dma/ti/k3-udma.c
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@ -1331,6 +1331,8 @@ static int udma_get_mmrs(struct udevice *dev)
continue;
if (i == MMR_RCHANRT && ud->rchan_cnt == 0)
continue;
if (i == MMR_RFLOW && ud->match_data->type == DMA_TYPE_BCDMA)
continue;
ud->mmrs[i] = dev_read_addr_name_ptr(dev, mmr_names[i]);
if (!ud->mmrs[i])