Re: [PATCH v5 15/22] media: rzg2l-cru: Make use of v4l2_format_info() helpers

Laurent Pinchart
2024-10-15T10:33:22Z

Hi Prabhakar,

Thank you for the patch.

On Fri, Oct 11, 2024 at 06:30:45PM +0100, Prabhakar wrote:
> From: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
>
> Make use of v4l2_format_info() helpers to determine the input and
> output formats.
>
> Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
> ---
> .../platform/renesas/rzg2l-cru/rzg2l-video.c | 22 ++++++-------------
> 1 file changed, 7 insertions(+), 15 deletions(-)
>
> diff --git a/drivers/media/platform/renesas/rzg2l-cru/rzg2l-video.c b/drivers/media/platform/renesas/rzg2l-cru/rzg2l-video.c
> index 8932fab7c656..0cc69a7440bf 100644
> --- a/drivers/media/platform/renesas/rzg2l-cru/rzg2l-video.c
> +++ b/drivers/media/platform/renesas/rzg2l-cru/rzg2l-video.c
> @@ -300,21 +300,12 @@ static void rzg2l_cru_initialize_axi(struct rzg2l_cru_dev *cru)
> rzg2l_cru_write(cru, AMnAXIATTR, amnaxiattr);
> }
>
> -static void rzg2l_cru_csi2_setup(struct rzg2l_cru_dev *cru, bool *input_is_yuv,
> +static void rzg2l_cru_csi2_setup(struct rzg2l_cru_dev *cru,
> const struct rzg2l_cru_ip_format *ip_fmt,
> u8 csi_vc)
> {
> u32 icnmc = ICnMC_INF(ip_fmt->datatype);
>
> - switch (ip_fmt->code) {
> - case MEDIA_BUS_FMT_UYVY8_1X16:
> - *input_is_yuv = true;
> - break;
> - default:
> - *input_is_yuv = false;
> - break;
> - }
> -
> icnmc |= (rzg2l_cru_read(cru, ICnMC) & ~ICnMC_INF_MASK);
>
> /* Set virtual channel CSI2 */
> @@ -327,19 +318,17 @@ 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_ip_fmt;
> - bool output_is_yuv = false;
> - bool input_is_yuv = false;
> u32 icndmr;
>
> cru_ip_fmt = rzg2l_cru_ip_code_to_fmt(ip_sd_fmt->code);
> - rzg2l_cru_csi2_setup(cru, &input_is_yuv, cru_ip_fmt, csi_vc);
> + rzg2l_cru_csi2_setup(cru, cru_ip_fmt, csi_vc);
>
> /* Output format */
> switch (cru->format.pixelformat) {
> case V4L2_PIX_FMT_UYVY:
> icndmr = ICnDMR_YCMODE_UYVY;
> - output_is_yuv = true;
> break;
> default:
> dev_err(cru->dev, "Invalid pixelformat (0x%x)\n",
> @@ -347,8 +336,11 @@ 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);

It would be a bit more efficient to add a yuv boolean field to the
rzg2l_cru_ip_format structure, as you already have looked up cru_ip_fmt
for the IP subdev format.

Reviewed-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>

> +
> /* If input and output use same colorspace, do bypass mode */
> - if (output_is_yuv == input_is_yuv)
> + if (v4l2_is_format_yuv(src_finfo) == v4l2_is_format_yuv(dst_finfo))
> rzg2l_cru_write(cru, ICnMC,
> rzg2l_cru_read(cru, ICnMC) | ICnMC_CSCTHR);
> else

--
Regards,

Laurent Pinchart