linux-kernel - [PATCH v3 2/2] dmaengine: ti: k3-udma: Add support for J722S CSI BCDMA

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Message-ID: <20241127101627.617537-3-vaishnav.a@ti.com>
Date: Wed, 27 Nov 2024 15:46:27 +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 v3 2/2] dmaengine: ti: k3-udma: Add support for J722S CSI BCDMA

J722S CSI BCDMA is similar to J721S2 CSI BCDMA but there are slight
integration differences like different PSIL thread base ID which is
currently handled in the driver based on udma_of_match data. Add an
entry to support J722S CSIRX.

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

V2->V3 : Minor edit in commit message.

V1->V2:
	* Add new compatible for J722S instead of modifying AM62A

 drivers/dma/ti/k3-udma.c | 16 ++++++++++++++++
 1 file changed, 16 insertions(+)

diff --git a/drivers/dma/ti/k3-udma.c b/drivers/dma/ti/k3-udma.c
index b3f27b3f9209..7ed1956b4642 100644
--- a/drivers/dma/ti/k3-udma.c
+++ b/drivers/dma/ti/k3-udma.c
@@ -4404,6 +4404,18 @@ static struct udma_match_data j721s2_bcdma_csi_data = {
 	.soc_data = &j721s2_bcdma_csi_soc_data,
 };
 
+static struct udma_match_data j722s_bcdma_csi_data = {
+	.type = DMA_TYPE_BCDMA,
+	.psil_base = 0x3100,
+	.enable_memcpy_support = false,
+	.burst_size = {
+		TI_SCI_RM_UDMAP_CHAN_BURST_SIZE_64_BYTES, /* Normal Channels */
+		0, /* No H Channels */
+		0, /* No UH Channels */
+	},
+	.soc_data = &j721s2_bcdma_csi_soc_data,
+};
+
 static const struct of_device_id udma_of_match[] = {
 	{
 		.compatible = "ti,am654-navss-main-udmap",
@@ -4435,6 +4447,10 @@ static const struct of_device_id udma_of_match[] = {
 		.compatible = "ti,j721s2-dmss-bcdma-csi",
 		.data = &j721s2_bcdma_csi_data,
 	},
+	{
+		.compatible = "ti,j722s-dmss-bcdma-csi",
+		.data = &j722s_bcdma_csi_data,
+	},
 	{ /* Sentinel */ },
 };
 MODULE_DEVICE_TABLE(of, udma_of_match);
-- 
2.34.1