[PATCH v6 06/11] dma: ti: k3-udma: Add support for native configuration of chan/flow

[Chintan Vankar]

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.

Reviewed-by: Alexander Sverdlin <alexander.sverdlin at siemens.com>
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 v5:
https://lore.kernel.org/r/20240813105400.4054657-6-c-vankar@ti.com/

Changes from v5 to v6:
- Added Reviewed-by tag from Alexander Sverdlin.

 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 b7e674f2186..e23d09e6b81 100644
--- a/drivers/dma/ti/k3-udma.c
+++ b/drivers/dma/ti/k3-udma.c
@@ -2118,6 +2118,9 @@ 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;
 }
 
@@ -2166,6 +2169,9 @@ 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