From c78af987208d88a04037796b9da5f33d3aa09b46 Mon Sep 17 00:00:00 2001 From: Kishon Vijay Abraham I <kishon@ti.com> Date: Mon, 26 Aug 2024 15:55:10 +0530 Subject: [PATCH] dma: ti: k3-udma: Add support for native configuration of chan/flow 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@siemens.com> Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com> Signed-off-by: Siddharth Vadapalli <s-vadapalli@ti.com> Signed-off-by: Chintan Vankar <c-vankar@ti.com> --- 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 b7e674f218..e23d09e6b8 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; } -- 2.39.5