media: renesas: rzg2l-cru: Add 'yuv' flag to IP format structure

Add a 'yuv' flag to the `rzg2l_cru_ip_format` structure to indicate
whether a given format is YUV-based and update the `rzg2l_cru_ip_formats`
array with this flag appropriately. This change enables a more efficient
way to check if the input and output formats use the same colorspace.

With this change, we can eliminate the use of `v4l2_format_info()` in
`rzg2l_cru_initialize_image_conv()` as the necessary details for the source
and destination formats are already available through the `yuv` flag.

Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Link: https://lore.kernel.org/r/20241018133446.223516-24-prabhakar.mahadev-lad.rj@bp.renesas.com
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>

drivers/media/platform/renesas/rzg2l-cru/rzg2l-cru.h

@@ -69,13 +69,15 @@ struct rzg2l_cru_ip {
  * @format: 4CC format identifier (V4L2_PIX_FMT_*)
  * @icndmr: ICnDMR register value
  * @bpp: bytes per pixel
+ * @yuv: Flag to indicate whether the format is YUV-based.
  */
 struct rzg2l_cru_ip_format {
 	u32 code;
 	u32 datatype;
 	u32 format;
 	u32 icndmr;
 	u8 bpp;
+	bool yuv;
 };
 
 /**

drivers/media/platform/renesas/rzg2l-cru/rzg2l-ip.c

@@ -18,34 +18,39 @@ static const struct rzg2l_cru_ip_format rzg2l_cru_ip_formats[] = {
 		.format = V4L2_PIX_FMT_UYVY,
 		.bpp = 2,
 		.icndmr = ICnDMR_YCMODE_UYVY,
+		.yuv = true,
 	},
 	{
 		.code = MEDIA_BUS_FMT_SBGGR8_1X8,
 		.format = V4L2_PIX_FMT_SBGGR8,
 		.datatype = MIPI_CSI2_DT_RAW8,
 		.bpp = 1,
 		.icndmr = 0,
+		.yuv = false,
 	},
 	{
 		.code = MEDIA_BUS_FMT_SGBRG8_1X8,
 		.format = V4L2_PIX_FMT_SGBRG8,
 		.datatype = MIPI_CSI2_DT_RAW8,
 		.bpp = 1,
 		.icndmr = 0,
+		.yuv = false,
 	},
 	{
 		.code = MEDIA_BUS_FMT_SGRBG8_1X8,
 		.format = V4L2_PIX_FMT_SGRBG8,
 		.datatype = MIPI_CSI2_DT_RAW8,
 		.bpp = 1,
 		.icndmr = 0,
+		.yuv = false,
 	},
 	{
 		.code = MEDIA_BUS_FMT_SRGGB8_1X8,
 		.format = V4L2_PIX_FMT_SRGGB8,
 		.datatype = MIPI_CSI2_DT_RAW8,
 		.bpp = 1,
 		.icndmr = 0,
+		.yuv = false,
 	},
 };
 

drivers/media/platform/renesas/rzg2l-cru/rzg2l-video.c

@@ -210,7 +210,6 @@ static int rzg2l_cru_initialize_image_conv(struct rzg2l_cru_dev *cru,
 					   struct v4l2_mbus_framefmt *ip_sd_fmt,
 					   u8 csi_vc)
 {
-	const struct v4l2_format_info *src_finfo, *dst_finfo;
 	const struct rzg2l_cru_ip_format *cru_video_fmt;
 	const struct rzg2l_cru_ip_format *cru_ip_fmt;
 
@@ -225,11 +224,8 @@ static int rzg2l_cru_initialize_image_conv(struct rzg2l_cru_dev *cru,
 		return -EINVAL;
 	}
 
-	src_finfo = v4l2_format_info(cru_ip_fmt->format);
-	dst_finfo = v4l2_format_info(cru->format.pixelformat);
-
 	/* If input and output use same colorspace, do bypass mode */
-	if (v4l2_is_format_yuv(src_finfo) == v4l2_is_format_yuv(dst_finfo))
+	if (cru_ip_fmt->yuv == cru_video_fmt->yuv)
 		rzg2l_cru_write(cru, ICnMC,
 				rzg2l_cru_read(cru, ICnMC) | ICnMC_CSCTHR);
 	else