linux-kernel - [PATCH v2 5/5] media: nxp: imx8-isi: Add ISI support for i.MX91

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Message-Id: <20250905-isi_imx93-v2-5-37db5f768c57@nxp.com>
Date: Fri, 05 Sep 2025 14:56:02 +0800
From: Guoniu Zhou <guoniu.zhou@....com>
To: Laurent Pinchart <laurent.pinchart@...asonboard.com>, 
 Mauro Carvalho Chehab <mchehab@...nel.org>, Rob Herring <robh@...nel.org>, 
 Krzysztof Kozlowski <krzk+dt@...nel.org>, 
 Conor Dooley <conor+dt@...nel.org>, Shawn Guo <shawnguo@...nel.org>, 
 Sascha Hauer <s.hauer@...gutronix.de>, 
 Pengutronix Kernel Team <kernel@...gutronix.de>, 
 Fabio Estevam <festevam@...il.com>, Frank Li <Frank.Li@....com>
Cc: linux-media@...r.kernel.org, devicetree@...r.kernel.org, 
 imx@...ts.linux.dev, linux-arm-kernel@...ts.infradead.org, 
 linux-kernel@...r.kernel.org, Guoniu Zhou <guoniu.zhou@....com>
Subject: [PATCH v2 5/5] media: nxp: imx8-isi: Add ISI support for i.MX91

The ISI module on i.MX91 implements only one channel and one parallel
camera input. As no input source selection is required, gasket ops are
unnecessary.

Reviewed-by: Frank Li <Frank.Li@....com>
Signed-off-by: Guoniu Zhou <guoniu.zhou@....com>
---
 drivers/media/platform/nxp/imx8-isi/imx8-isi-core.c | 12 ++++++++++++
 drivers/media/platform/nxp/imx8-isi/imx8-isi-core.h |  1 +
 2 files changed, 13 insertions(+)

diff --git a/drivers/media/platform/nxp/imx8-isi/imx8-isi-core.c b/drivers/media/platform/nxp/imx8-isi/imx8-isi-core.c
index 0155c75983f02f33f7f0669e73188222ebb5e816..c3d411ddf492eb27b372763ce5d344a90c6ec524 100644
--- a/drivers/media/platform/nxp/imx8-isi/imx8-isi-core.c
+++ b/drivers/media/platform/nxp/imx8-isi/imx8-isi-core.c
@@ -347,6 +347,17 @@ static const struct mxc_isi_plat_data mxc_imx8ulp_data = {
 	.has_36bit_dma		= false,
 };
 
+static const struct mxc_isi_plat_data mxc_imx91_data = {
+	.model			= MXC_ISI_IMX91,
+	.num_ports		= 1,
+	.num_channels		= 1,
+	.reg_offset		= 0,
+	.ier_reg		= &mxc_imx8_isi_ier_v2,
+	.set_thd		= &mxc_imx8_isi_thd_v1,
+	.buf_active_reverse	= true,
+	.has_36bit_dma		= false,
+};
+
 static const struct mxc_isi_plat_data mxc_imx93_data = {
 	.model			= MXC_ISI_IMX93,
 	.num_ports		= 1,
@@ -547,6 +558,7 @@ static const struct of_device_id mxc_isi_of_match[] = {
 	{ .compatible = "fsl,imx8qm-isi", .data = &mxc_imx8qm_data },
 	{ .compatible = "fsl,imx8qxp-isi", .data = &mxc_imx8qxp_data },
 	{ .compatible = "fsl,imx8ulp-isi", .data = &mxc_imx8ulp_data },
+	{ .compatible = "fsl,imx91-isi", .data = &mxc_imx91_data },
 	{ .compatible = "fsl,imx93-isi", .data = &mxc_imx93_data },
 	{ /* sentinel */ },
 };
diff --git a/drivers/media/platform/nxp/imx8-isi/imx8-isi-core.h b/drivers/media/platform/nxp/imx8-isi/imx8-isi-core.h
index e84af5127e4e7938e55e31b7063bee5e2cd4cb11..3cbd35305af0f8026c4f76b5eb5d0864f8e36dc3 100644
--- a/drivers/media/platform/nxp/imx8-isi/imx8-isi-core.h
+++ b/drivers/media/platform/nxp/imx8-isi/imx8-isi-core.h
@@ -160,6 +160,7 @@ enum model {
 	MXC_ISI_IMX8QM,
 	MXC_ISI_IMX8QXP,
 	MXC_ISI_IMX8ULP,
+	MXC_ISI_IMX91,
 	MXC_ISI_IMX93,
 };
 

-- 
2.34.1