linux-kernel - Re: [PATCH 5/5] media: imx8mq-mipi-csi2: Add support for i.MX8ULP

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Message-ID: <aJtuqfwKoysr4P+I@lizhi-Precision-Tower-5810>
Date: Tue, 12 Aug 2025 12:41:13 -0400
From: Frank Li <Frank.li@....com>
To: guoniu.zhou@....nxp.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, rmfrfs@...il.com,
	laurent.pinchart@...asonboard.com, martink@...teo.de,
	kernel@...i.sm, mchehab@...nel.org, robh@...nel.org,
	krzk+dt@...nel.org, conor+dt@...nel.org, shawnguo@...nel.org,
	s.hauer@...gutronix.de, kernel@...gutronix.de, festevam@...il.com
Subject: Re: [PATCH 5/5] media: imx8mq-mipi-csi2: Add support for i.MX8ULP

On Tue, Aug 12, 2025 at 04:19:26PM +0800, guoniu.zhou@....nxp.com wrote:
> From: Guoniu Zhou <guoniu.zhou@....com>
>
> The CSI-2 receiver in i.MX8ULP is almost same as i.MX8QXP/QM except
> clocks and resets, so add compatible string for i.MX8ULP to handle
> the difference and reuse platform data of i.MX8QXP/QM.
>
> Signed-off-by: Guoniu Zhou <guoniu.zhou@....com>
> ---
>  drivers/media/platform/nxp/imx8mq-mipi-csi2.c | 1 +
>  1 file changed, 1 insertion(+)
>
> diff --git a/drivers/media/platform/nxp/imx8mq-mipi-csi2.c b/drivers/media/platform/nxp/imx8mq-mipi-csi2.c
> index 071d939d9048..14cd08f9a4f6 100644
> --- a/drivers/media/platform/nxp/imx8mq-mipi-csi2.c
> +++ b/drivers/media/platform/nxp/imx8mq-mipi-csi2.c
> @@ -1136,6 +1136,7 @@ static void imx8mq_mipi_csi_remove(struct platform_device *pdev)
>  static const struct of_device_id imx8mq_mipi_csi_of_match[] = {
>  	{ .compatible = "fsl,imx8mq-mipi-csi2", .data = &imx8mq_data },
>  	{ .compatible = "fsl,imx8qxp-mipi-csi2", .data = &imx8qxp_data },
> +	{ .compatible = "fsl,imx8ulp-mipi-csi2", .data = &imx8qxp_data },

if platform data is the same, you can update dt binding file, allow
fsl,imx8ulp-mipi-csi2 fallback to fsl,imx8qxp-mipi-csi2.

So, needn't this patch at all.

comaptible = "fsl,imx8ulp-mipi-csi2", "fsl,imx8qxp-mipi-csi2".

Frank

>  	{ /* sentinel */ },
>  };
>  MODULE_DEVICE_TABLE(of, imx8mq_mipi_csi_of_match);
> --
> 2.34.1
>