On Mon, Dec 2, 2024 at 3:51 PM Daniel Scally
<dan.scally@xxxxxxxxxxxxxxxx> wrote:
>
> As a preliminary step for supporting the CRU pixel formats, extend
> the driver such that multiple media bus codes can support each of
> the output pixel formats.
>
> Signed-off-by: Daniel Scally <dan.scally@xxxxxxxxxxxxxxxx>
> ---
> Changes in v3:
>
> - New patch due to changes to patch 1
>
> .../platform/renesas/rzg2l-cru/rzg2l-cru.h | 8 ++-
> .../platform/renesas/rzg2l-cru/rzg2l-ip.c | 67 +++++++++++++++----
> .../platform/renesas/rzg2l-cru/rzg2l-video.c | 2 +-
> 3 files changed, 61 insertions(+), 16 deletions(-)
>
Reviewed-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@xxxxxxxxxxxxxx>
Cheers,
Prabhakar
> diff --git a/drivers/media/platform/renesas/rzg2l-cru/rzg2l-cru.h b/drivers/media/platform/renesas/rzg2l-cru/rzg2l-cru.h
> index aaf85054f8842..ab923bfa3becf 100644
> --- a/drivers/media/platform/renesas/rzg2l-cru/rzg2l-cru.h
> +++ b/drivers/media/platform/renesas/rzg2l-cru/rzg2l-cru.h
> @@ -71,7 +71,11 @@ struct rzg2l_cru_ip {
> * @yuv: Flag to indicate whether the format is YUV-based.
> */
> struct rzg2l_cru_ip_format {
> - u32 code;
> + /*
> + * RAW output formats might be produced by RAW media codes with any one
> + * of the 4 common bayer patterns.
> + */
> + u32 codes[4];
> u32 datatype;
> u32 format;
> u32 icndmr;
> @@ -169,5 +173,7 @@ struct v4l2_mbus_framefmt *rzg2l_cru_ip_get_src_fmt(struct rzg2l_cru_dev *cru);
> const struct rzg2l_cru_ip_format *rzg2l_cru_ip_code_to_fmt(unsigned int code);
> const struct rzg2l_cru_ip_format *rzg2l_cru_ip_format_to_fmt(u32 format);
> const struct rzg2l_cru_ip_format *rzg2l_cru_ip_index_to_fmt(u32 index);
> +bool rzg2l_cru_ip_fmt_supports_mbus_code(const struct rzg2l_cru_ip_format *fmt,
> + unsigned int code);
>
> #endif
> diff --git a/drivers/media/platform/renesas/rzg2l-cru/rzg2l-ip.c b/drivers/media/platform/renesas/rzg2l-cru/rzg2l-ip.c
> index 399a337dbafbf..54a79d5c13e10 100644
> --- a/drivers/media/platform/renesas/rzg2l-cru/rzg2l-ip.c
> +++ b/drivers/media/platform/renesas/rzg2l-cru/rzg2l-ip.c
> @@ -13,35 +13,45 @@
>
> static const struct rzg2l_cru_ip_format rzg2l_cru_ip_formats[] = {
> {
> - .code = MEDIA_BUS_FMT_UYVY8_1X16,
> + .codes = {
> + MEDIA_BUS_FMT_UYVY8_1X16,
> + },
> .datatype = MIPI_CSI2_DT_YUV422_8B,
> .format = V4L2_PIX_FMT_UYVY,
> .icndmr = ICnDMR_YCMODE_UYVY,
> .yuv = true,
> },
> {
> - .code = MEDIA_BUS_FMT_SBGGR8_1X8,
> + .codes = {
> + MEDIA_BUS_FMT_SBGGR8_1X8,
> + },
> .format = V4L2_PIX_FMT_SBGGR8,
> .datatype = MIPI_CSI2_DT_RAW8,
> .icndmr = 0,
> .yuv = false,
> },
> {
> - .code = MEDIA_BUS_FMT_SGBRG8_1X8,
> + .codes = {
> + MEDIA_BUS_FMT_SGBRG8_1X8,
> + },
> .format = V4L2_PIX_FMT_SGBRG8,
> .datatype = MIPI_CSI2_DT_RAW8,
> .icndmr = 0,
> .yuv = false,
> },
> {
> - .code = MEDIA_BUS_FMT_SGRBG8_1X8,
> + .codes = {
> + MEDIA_BUS_FMT_SGRBG8_1X8,
> + },
> .format = V4L2_PIX_FMT_SGRBG8,
> .datatype = MIPI_CSI2_DT_RAW8,
> .icndmr = 0,
> .yuv = false,
> },
> {
> - .code = MEDIA_BUS_FMT_SRGGB8_1X8,
> + .codes = {
> + MEDIA_BUS_FMT_SRGGB8_1X8,
> + },
> .format = V4L2_PIX_FMT_SRGGB8,
> .datatype = MIPI_CSI2_DT_RAW8,
> .icndmr = 0,
> @@ -51,11 +61,14 @@ static const struct rzg2l_cru_ip_format rzg2l_cru_ip_formats[] = {
>
> const struct rzg2l_cru_ip_format *rzg2l_cru_ip_code_to_fmt(unsigned int code)
> {
> - unsigned int i;
> + unsigned int i, j;
>
> - for (i = 0; i < ARRAY_SIZE(rzg2l_cru_ip_formats); i++)
> - if (rzg2l_cru_ip_formats[i].code == code)
> - return &rzg2l_cru_ip_formats[i];
> + for (i = 0; i < ARRAY_SIZE(rzg2l_cru_ip_formats); i++) {
> + for (j = 0; j < ARRAY_SIZE(rzg2l_cru_ip_formats[i].codes); j++) {
> + if (rzg2l_cru_ip_formats[i].codes[j] == code)
> + return &rzg2l_cru_ip_formats[i];
> + }
> + }
>
> return NULL;
> }
> @@ -80,6 +93,17 @@ const struct rzg2l_cru_ip_format *rzg2l_cru_ip_index_to_fmt(u32 index)
> return &rzg2l_cru_ip_formats[index];
> }
>
> +bool rzg2l_cru_ip_fmt_supports_mbus_code(const struct rzg2l_cru_ip_format *fmt,
> + unsigned int code)
> +{
> + unsigned int i;
> +
> + for (i = 0; i < ARRAY_SIZE(fmt->codes); i++)
> + if (fmt->codes[i] == code)
> + return true;
> +
> + return false;
> +}
> struct v4l2_mbus_framefmt *rzg2l_cru_ip_get_src_fmt(struct rzg2l_cru_dev *cru)
> {
> struct v4l2_subdev_state *state;
> @@ -155,7 +179,7 @@ static int rzg2l_cru_ip_set_format(struct v4l2_subdev *sd,
> sink_format = v4l2_subdev_state_get_format(state, fmt->pad);
>
> if (!rzg2l_cru_ip_code_to_fmt(fmt->format.code))
> - sink_format->code = rzg2l_cru_ip_formats[0].code;
> + sink_format->code = rzg2l_cru_ip_formats[0].codes[0];
> else
> sink_format->code = fmt->format.code;
>
> @@ -181,11 +205,26 @@ static int rzg2l_cru_ip_enum_mbus_code(struct v4l2_subdev *sd,
> struct v4l2_subdev_state *state,
> struct v4l2_subdev_mbus_code_enum *code)
> {
> - if (code->index >= ARRAY_SIZE(rzg2l_cru_ip_formats))
> - return -EINVAL;
> + unsigned int index = code->index;
> + unsigned int i, j;
>
> - code->code = rzg2l_cru_ip_formats[code->index].code;
> - return 0;
> + for (i = 0; i < ARRAY_SIZE(rzg2l_cru_ip_formats); i++) {
> + const struct rzg2l_cru_ip_format *fmt = &rzg2l_cru_ip_formats[i];
> +
> + for (j = 0; j < ARRAY_SIZE(fmt->codes); j++) {
> + if (!fmt->codes[j])
> + continue;
> +
> + if (!index) {
> + code->code = fmt->codes[j];
> + return 0;
> + }
> +
> + index--;
> + }
> + }
> +
> + return -EINVAL;
> }
>
> static int rzg2l_cru_ip_enum_frame_size(struct v4l2_subdev *sd,
> diff --git a/drivers/media/platform/renesas/rzg2l-cru/rzg2l-video.c b/drivers/media/platform/renesas/rzg2l-cru/rzg2l-video.c
> index 028b390488c84..57d1ff45ce1e9 100644
> --- a/drivers/media/platform/renesas/rzg2l-cru/rzg2l-video.c
> +++ b/drivers/media/platform/renesas/rzg2l-cru/rzg2l-video.c
> @@ -891,7 +891,7 @@ static int rzg2l_cru_video_link_validate(struct media_link *link)
> if (fmt.format.width != cru->format.width ||
> fmt.format.height != cru->format.height ||
> fmt.format.field != cru->format.field ||
> - video_fmt->code != fmt.format.code)
> + !rzg2l_cru_ip_fmt_supports_mbus_code(video_fmt, fmt.format.code))
> return -EPIPE;
>
> return 0;
> --
> 2.34.1
>
>
