[PATCH v3 05/10] dma: ti: k3-udma: Add support for native configuration of chan/flow
Chintan Vankar
c-vankar at ti.com
Fri Jul 5 06:50:25 CEST 2024
From: Kishon Vijay Abraham I <kishon at ti.com>
In absence of Device Manager (DM) services such as at R5 SPL stage,
driver will have to natively setup TCHAN/RCHAN/RFLOW cfg registers.
Existing UDMA driver performed the above mentioned configuration
for UDMA. Add similar configuration for PKTDMA here.
Signed-off-by: Kishon Vijay Abraham I <kishon at ti.com>
Signed-off-by: Siddharth Vadapalli <s-vadapalli at ti.com>
Signed-off-by: Chintan Vankar <c-vankar at ti.com>
---
Link to v2:
https://lore.kernel.org/r/20240425120822.2048012-6-c-vankar@ti.com/
Changes from v2 to v3:
- No changes.
drivers/dma/ti/k3-udma.c | 6 ++++++
1 file changed, 6 insertions(+)
diff --git a/drivers/dma/ti/k3-udma.c b/drivers/dma/ti/k3-udma.c
index da341a2477..14c3999035 100644
--- a/drivers/dma/ti/k3-udma.c
+++ b/drivers/dma/ti/k3-udma.c
@@ -2119,6 +2119,9 @@ static int bcdma_tisci_tx_channel_config(struct udma_chan *uc)
if (ret)
dev_err(ud->dev, "tchan%d cfg failed %d\n", tchan->id, ret);
+ if (IS_ENABLED(CONFIG_K3_DM_FW))
+ udma_alloc_tchan_raw(uc);
+
return ret;
}
@@ -2167,6 +2170,9 @@ static int pktdma_tisci_rx_channel_config(struct udma_chan *uc)
dev_err(ud->dev, "flow%d config failed: %d\n", uc->rflow->id,
ret);
+ if (IS_ENABLED(CONFIG_K3_DM_FW))
+ udma_alloc_rchan_raw(uc);
+
return ret;
}
--
2.34.1
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