linux-kernel - [PATCH 2/2] dmaengine: ti: k3-udma: Add TX channel data in AM62A CSIRX DMSS

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Message-ID: <20241125083914.2934815-2-vaishnav.a@ti.com>
Date: Mon, 25 Nov 2024 14:09:14 +0530
From: Vaishnav Achath <vaishnav.a@...com>
To: <peter.ujfalusi@...il.com>, <vkoul@...nel.org>, <robh@...nel.org>,
        <krzk+dt@...nel.org>, <conor+dt@...nel.org>,
        <dmaengine@...r.kernel.org>, <devicetree@...r.kernel.org>
CC: <linux-kernel@...r.kernel.org>, <u-kumar1@...com>, <j-choudhary@...com>,
        <vigneshr@...com>, <vaishnav.a@...com>
Subject: [PATCH 2/2] dmaengine: ti: k3-udma: Add TX channel data in AM62A CSIRX DMSS

J722S/AM67 uses the same BCDMA CSIRX IP as AM62A, but it supports
TX channels as well in addition to RX. Add the BCDMA TCHAN information
in the am62a_dmss_csi_soc_data so as to support all the platforms in the
family with same compatible. UDMA_CAP2_TCHAN_CNT indicates the presence
of TX channels and it will be 0 for platforms without TX support.

Signed-off-by: Vaishnav Achath <vaishnav.a@...com>
---

CSI2RX capture test results on J722S EVM with IMX219:
https://gist.github.com/vaishnavachath/e2eaed62ee8f53428ee9b830aaa02cc3

 drivers/dma/ti/k3-udma.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/dma/ti/k3-udma.c b/drivers/dma/ti/k3-udma.c
index b3f27b3f9209..4130f50979d4 100644
--- a/drivers/dma/ti/k3-udma.c
+++ b/drivers/dma/ti/k3-udma.c
@@ -4340,6 +4340,8 @@ static struct udma_match_data j721e_mcu_data = {
 
 static struct udma_soc_data am62a_dmss_csi_soc_data = {
 	.oes = {
+		.bcdma_tchan_data = 0x800,
+		.bcdma_tchan_ring = 0xa00,
 		.bcdma_rchan_data = 0xe00,
 		.bcdma_rchan_ring = 0x1000,
 	},
-- 
2.34.1