Re: [PATCH v5 4/4] media: nxp: imx8-isi: Add additional 32-bit RGB format support

[Laurent Pinchart]

On Tue, Jul 28, 2026 at 02:58:59PM +0800, Guoniu Zhou wrote:
> Add support for additional 32-bit RGB pixel formats (BGRA32, RGBA32,
> BGRX32, RGBX32, ARGB2101010).
> 
> Formats with alpha channel (BGRA32, RGBA32) only support capture as
> ISI ignores alpha bits when reading from memory.
> 
> Signed-off-by: Robert Chiras <robert.chiras@xxxxxxx>
> Reviewed-by: Frank Li <Frank.Li@xxxxxxx>
> Tested-by: Laurent Pinchart <laurent.pinchart@xxxxxxxxxxxxxxxx>
> Signed-off-by: Guoniu Zhou <guoniu.zhou@xxxxxxxxxxx>

Reviewed-by: Laurent Pinchart <laurent.pinchart@xxxxxxxxxxxxxxxx>

> ---
> Changes in v3:
> - Drop M2M_OUT for ABGR32/BGRA32/RGBA32 as ISI ignores alpha bits (Laurent)
> - Remove Android requirements from commit message as alpha formats
>   cannot be used as M2M input (Laurent)
> - Add Tested-by tag from Laurent Pinchart
> 
> Changes in v2:
> - Add Reviewed-by tag from Frank Li
> ---
>  .../media/platform/nxp/imx8-isi/imx8-isi-video.c   | 51 ++++++++++++++++++++++
>  1 file changed, 51 insertions(+)
> 
> diff --git a/drivers/media/platform/nxp/imx8-isi/imx8-isi-video.c b/drivers/media/platform/nxp/imx8-isi/imx8-isi-video.c
> index a6e044056762..f45c2aae59ce 100644
> --- a/drivers/media/platform/nxp/imx8-isi/imx8-isi-video.c
> +++ b/drivers/media/platform/nxp/imx8-isi/imx8-isi-video.c
> @@ -166,6 +166,57 @@ static const struct mxc_isi_format_info mxc_isi_formats[] = {
>  		.color_planes	= 1,
>  		.depth		= { 32 },
>  		.encoding	= MXC_ISI_ENC_RGB,
> +	}, {
> +		.mbus_code	= MEDIA_BUS_FMT_RGB888_1X24,
> +		.fourcc		= V4L2_PIX_FMT_BGRA32,
> +		.type		= MXC_ISI_VIDEO_CAP | MXC_ISI_VIDEO_M2M_CAP,
> +		.isi_out_format	= CHNL_IMG_CTRL_FORMAT_RGBA8888,
> +		.mem_planes	= 1,
> +		.color_planes	= 1,
> +		.depth		= { 32 },
> +		.encoding	= MXC_ISI_ENC_RGB,
> +	}, {
> +		.mbus_code	= MEDIA_BUS_FMT_RGB888_1X24,
> +		.fourcc		= V4L2_PIX_FMT_RGBA32,
> +		.type		= MXC_ISI_VIDEO_CAP | MXC_ISI_VIDEO_M2M_CAP,
> +		.isi_out_format	= CHNL_IMG_CTRL_FORMAT_ABGR8888,
> +		.mem_planes	= 1,
> +		.color_planes	= 1,
> +		.depth		= { 32 },
> +		.encoding	= MXC_ISI_ENC_RGB,
> +	}, {
> +		.mbus_code	= MEDIA_BUS_FMT_RGB888_1X24,
> +		.fourcc		= V4L2_PIX_FMT_BGRX32,
> +		.type		= MXC_ISI_VIDEO_CAP | MXC_ISI_VIDEO_M2M_OUT
> +				| MXC_ISI_VIDEO_M2M_CAP,
> +		.isi_in_format	= CHNL_MEM_RD_CTRL_IMG_TYPE_RGBX8,
> +		.isi_out_format	= CHNL_IMG_CTRL_FORMAT_RGBX888,
> +		.mem_planes	= 1,
> +		.color_planes	= 1,
> +		.depth		= { 32 },
> +		.encoding	= MXC_ISI_ENC_RGB,
> +	}, {
> +		.mbus_code	= MEDIA_BUS_FMT_RGB888_1X24,
> +		.fourcc		= V4L2_PIX_FMT_RGBX32,
> +		.type		= MXC_ISI_VIDEO_CAP | MXC_ISI_VIDEO_M2M_OUT
> +				| MXC_ISI_VIDEO_M2M_CAP,
> +		.isi_in_format	= CHNL_MEM_RD_CTRL_IMG_TYPE_XBGR8,
> +		.isi_out_format	= CHNL_IMG_CTRL_FORMAT_XBGR888,
> +		.mem_planes	= 1,
> +		.color_planes	= 1,
> +		.depth		= { 32 },
> +		.encoding	= MXC_ISI_ENC_RGB,
> +	}, {
> +		.mbus_code	= MEDIA_BUS_FMT_RGB888_1X24,
> +		.fourcc		= V4L2_PIX_FMT_ARGB2101010,
> +		.type		= MXC_ISI_VIDEO_CAP | MXC_ISI_VIDEO_M2M_OUT
> +				| MXC_ISI_VIDEO_M2M_CAP,
> +		.isi_in_format	= CHNL_MEM_RD_CTRL_IMG_TYPE_A2RGB10,
> +		.isi_out_format	= CHNL_IMG_CTRL_FORMAT_A2RGB10,
> +		.mem_planes	= 1,
> +		.color_planes	= 1,
> +		.depth		= { 32 },
> +		.encoding	= MXC_ISI_ENC_RGB,
>  	},
>  	/*
>  	 * RAW formats

-- 
Regards,

Laurent Pinchart