linux-kernel - Re: [PATCH v5 2/4] media: imx8mq-mipi-csi2: Add output filed in csi2_pix

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Message-ID: <aKXcPVQnQzCx6C5z@lizhi-Precision-Tower-5810>
Date: Wed, 20 Aug 2025 10:31:25 -0400
From: Frank Li <Frank.li@....com>
To: Guoniu Zhou <guoniu.zhou@....com>
Cc: Rui Miguel Silva <rmfrfs@...il.com>,
	Laurent Pinchart <laurent.pinchart@...asonboard.com>,
	Martin Kepplinger <martink@...teo.de>,
	Purism Kernel Team <kernel@...i.sm>,
	Mauro Carvalho Chehab <mchehab@...nel.org>,
	Shawn Guo <shawnguo@...nel.org>,
	Sascha Hauer <s.hauer@...gutronix.de>,
	Pengutronix Kernel Team <kernel@...gutronix.de>,
	Fabio Estevam <festevam@...il.com>, linux-media@...r.kernel.org,
	imx@...ts.linux.dev, linux-arm-kernel@...ts.infradead.org,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH v5 2/4] media: imx8mq-mipi-csi2: Add output filed in
 csi2_pix_format

On Wed, Aug 20, 2025 at 07:04:57PM +0800, Guoniu Zhou wrote:
> Add output filed in csi2_pix_format since the format on the
> source pad might change due to unpacking.

Nit: wrap at 75 chars position

Add output filed in csi2_pix_format since the format on the source pad
might change due to unpacking.

Treat 0 as meaning the output uses the same format as the input.

Reviewed-by: Frank Li <Frank.Li@....com>

>
> Signed-off-by: Guoniu Zhou <guoniu.zhou@....com>
> ---
>  drivers/media/platform/nxp/imx8mq-mipi-csi2.c | 4 ++++
>  1 file changed, 4 insertions(+)
>
> diff --git a/drivers/media/platform/nxp/imx8mq-mipi-csi2.c b/drivers/media/platform/nxp/imx8mq-mipi-csi2.c
> index 85700655ecad334c61e9b5f9f073e10b6db2618f..ad7adc677e389e0f35b0cf63195279e197907f8c 100644
> --- a/drivers/media/platform/nxp/imx8mq-mipi-csi2.c
> +++ b/drivers/media/platform/nxp/imx8mq-mipi-csi2.c
> @@ -139,6 +139,7 @@ struct csi_state {
>
>  struct csi2_pix_format {
>  	u32 code;
> +	u32 output;
>  };
>
>  /* -----------------------------------------------------------------------------
> @@ -634,6 +635,9 @@ static int imx8mq_mipi_csi_set_fmt(struct v4l2_subdev *sd,
>  	fmt = v4l2_subdev_state_get_format(sd_state, MIPI_CSI2_PAD_SOURCE);
>  	*fmt = sdformat->format;
>
> +	/* The format on the source pad might change due to unpacking. */
> +	fmt->code = csi2_fmt->output ? : csi2_fmt->code;
> +
>  	return 0;
>  }
>
>
> --
> 2.34.1
>